Laser engraving machine ebay

Laser engraving machine ebay DEFAULT
11 RepliesLatest reply on Jul 15, 2016 2:54 PM by makerkaren

I'd really like to make the leap into playing with a laser cutter - and there are a million (ok, maybe not a MILLION) of them on EBAY in the 500-600 range. But reading reviews, doing a bit of light research, watching some youtube videos, there's not a lot of info about how to really get started with these things if you're brandy-new to laser cutting.  Ben's done a couple videos that involve laser cutting, and is constantly using it in his projects, but what I'd REALLY like is a sort of "getting started with a cheap EBAY laser cutter" video, or even a whole series. Maybe something where Ben buys one of those super-common 500-600 range laser cutters, gets it up and running, explains how the software for them works (because they all seem to want to use Corel Draw from what I've read, but using something like Inkscape would probably be a lot more flexible), and how to get the "most" out of them, given their limitations.

 

Other things that would be really interesting:

1. What other kinds of software can be used with these el-cheapo laser cutters? See aforementioned Inkscape (or Illustrator?)

2. What simple upgrades/improvements should be made to them to keep them running reliably or improve their performance

3. How "hackable" are they? I.e., after buying one could it be torn apart and the build size increased?

 

Thanks for a great show! Watch it every week!

This content has been marked as final.  Show 11 replies

  • Re: Demystify cheap EBAY laser cutters?
    makerkaren
    makerkaren Jul 13, 2016 3:37 PM (in response to dershum)

    I've used my fair share of nice name brand lasers as well as cheap so-Chinese-they-don't-have-a-name-brand lasers. They're all a little different. The Chinese ones usually come with their own crappy software and there usually isn't an alternative other than possibly using Corel Draw. Usually what you have to do is design in different software and figure out what format is ideal(usually .dxf) to save as and import your design file into the crappy software to send it to the laser. [This can be a serious pain as different design elements can export and import differently. Our laser uses .dxf or Illustrator 8 files, but still inconsistently.]

     

    No matter what they tell you, all lasers needs some sort of ventilation. So assume you'll need to set up a fan and duct system and cut a whole in an exterior wall. I've never tested it, but it might be possible to use a very fine filter to avoid exhausting outside, though I've never seen this done successfully.

     

    The cheap lasers will have an advertised wattage, but sometimes they don't actually operate at that power. Our hackerspace 50w laser only operates at 32w with a new tube. The power level of the tube determines how thick of material you will be able to cut through.

     

    To help your laser last longer,

    • Carefully clean the mirrors and lenses regularly.
    • Don't run your laser at full power. Keep it to 80-90% as it should lengthen the life of your laser tube.
    • To extend the life of your servo motors, mind your speed when etching. The laser head travels back and forth quickly having to ramp up and slow down at either end. If you're etching a small area, you may want to decrease your speed so that the rapid start and stop motion of the servos doesn't wear on them as much.

    Lasers are hackable, or you can buy a kit and build one from scratch. I just visited Dallas Makerspace and they have a laser with a decent sized bed that was built from scratch.

    Something to consider, the focus range of a laser is quite small so the axis need to be very level and very square. If they are not, you will get uneven cuts or areas that will simply not cut through. The focus area of a weak(<60w) laser can be less than 1/4". When building a DIY unit, it is very easy to have the height difference of your axis be off that small amount.

     

    Laser cheat: If you have a weaker laser and want to cut through material thicker than what your laser can handle, sometimes you can refocus the z-axis so that it is not focused to the top of your material as you would normally focus, but raise the z-axis so that the laser is focused on the center of the material. You'd have to eyeball this typically, but I've had it work often for me. This is typically done on a second pass. This technique may yield a larger kerf.

     

    Note: If a laser says it can cut through 1/4" material, that doesn't always mean ANY 1/4" material. Solid lumber is easier to cut through than plywood because plywood contains glue, which is harder to cut through. Likewise, MDF or hardboard can be harder to cut through because it also contains glue. So if you can cut through 1/4" bass wood, you may not be able to cut through 1/4" MDF.

     

    If you have other laser questions, I'd be happy to help!

    3 of 3 people found this helpful
    • Re: Demystify cheap EBAY laser cutters?
      dershum
      dershum Jul 13, 2016 8:56 PM (in response to makerkaren)

      Thanks for the response! Something I'm really curious if you know how these lasers are "driven". I know that, for example, my 3D printer uses GCODE that's sent serially (ok, USB but acting as a serial connection), but I'm curious if there's any info out there about how these lasers are typically driven. My suspicion is that they're driven like a printer - so something like a printer driver is actually handling the communication. So it'd be proprietary, and short of decompiling the driver or otherwise reverse engineering the protocol, there probably isn't much out there.

       

      Anyway, thanks again for the response!

       

      Oh, and just because I'm dying of curiosity, is this THE Karen from TBHS? Cause if so, that's AWESOME.

      • Re: Demystify cheap EBAY laser cutters?
        beacon_dave
        beacon_daveTop Member Jul 13, 2016 9:37 PM (in response to dershum)

        The likes of the Spirit GE uses a printer driver. It's actually more like a pen plotter driver as it uses the different 'pens' to do different types of cut allowing you to set different speed and power for cutting versus engraving operations. If you draw the design in Corel Draw then you use different line colours to denote the different types of cut you want which are then defined in the printer driver.

        1 of 1 people found this helpful
      • Re: Demystify cheap EBAY laser cutters?
        makerkaren
        makerkaren Jul 14, 2016 5:24 PM (in response to dershum)

        A lot of the lasers I've seen use software that is setup like a printer driver. I'm not extremely knowledgable about computer hardware/software, so I can't help much more than that.

        Dave is correct, with all the lasers I've used, you can set vectors(lines) to different colors that allow you to apply custom speed, power, and etch/cut settings to each color. But if you're going to run layers at different settings all in one "print" make sure you test a small area of whatever material will be used for the final product with each setting first to ensure you get the desired results before you spend the time and material to do the full job.

         

        And yes, I'm the real me. *waves*

        1 of 1 people found this helpful
  • Re: Demystify cheap EBAY laser cutters?
    balearicdynamics
    balearicdynamicsTop Member Jul 14, 2016 6:07 PM (in response to dershum)

    Phillip,

     

    To be honest I always search for a cheap product by - maybe a prejudice - I don't search o ebay. Recently I had sponsored by GearBest for a bunch of things in support to the PiIoT kit from Element14 for the challenge. Together with a hundred of steppers they sent me too a 2.5 A laser engraver/cutter.  I have already published the instructable GearBest laser engraver DIY Kit assembly instructions  on how to assemble and setup it and to be honest it is cheaper than the range of 500-600 $ but it is - in its simplicity - very well done. I confirm that the laser has itw own cooler fan controlled by the board.No way to have it working for a long time without. For detailed usage of the laser engraver / cutter (this is not super-power but you can consider is as a good example respecting the fundamental principles of this kind of tools) you can follow the further posts on the PiIoT Challenge.

     

    Enrico

    1 of 1 people found this helpful
  • Re: Demystify cheap EBAY laser cutters?
    balearicdynamics
    balearicdynamicsTop Member Jul 14, 2016 6:25 PM (in response to dershum)

    Again. I try to answer to your second part of the questions, the software. The laser engravers, as well as the 3D printer, CNC machined etc. are managed by a micro controller board that accept in its firmware a g-code dialect. I mean dialect because in this particular case of CAD tools there are some specific commands typical of the laser control. First of all there is no x axis that is replaced by the laser lens focus. Then there are commands to control the laser continuously or by pulse, depending on the depth and the kind of job you are doing, the material etc. Then there are G-code controls like the laser to very-low-power for positioning, laser fan activation etc.

     

    So there is not a single software you can use and the format, DXF instead of SVG, AI or other vectorial file formats or bitmap images (jpeg, png, bmp) in the case you need to make a variable depth engraving, using greyscale images or pure monochrome - black and white -

     

    What you need is a software able to manage these kind of files, give you a good quality resulting image in g-code format to export it and send to the machine. I suggest software like Artcam if you are doing mostly graphic elements but Inskcape or Gimp (both are open source and work very well on all the platforms) are also a good alternative.

     

    So there are two different software level:

    • The graphic processing of the image
    • The machine control software.

     

    Currently I am using Brenbox for the machine control but it is almost crap and is a temporary solution. The graphic objects are created with the mentioned programs and other (including Rhino 4, Phtoshop CS5 etc.) then the export formats are those mentioned above.

     

    An approach that I consider interesting is a project I am working on where you can control the machine with a Raspberry PI and a java application. It acts as a server that can be accessed by the network directly from your pc from where you export the original image in G-Code format.

     

    To do this I am making a porting / hacking of the universal g-code sender almost oriented to control laser machines.

     

    Enrico

    1 of 1 people found this helpful
    • Re: Demystify cheap EBAY laser cutters?
      dershum
      dershum Jul 14, 2016 11:37 PM (in response to balearicdynamics)

      Wow...now THAT might be exactly what I'm looking for.

       

      In a general way - I wasn't really just thinking of Ebay as a place to look. It just seems like there are a LOT of the same model of laser cutter/engraver running around that is sourced from China. Ebay happens to be the cheapest (from what I can see) source of such things.

       

      That being said, this kit looks AWESOME. Also, it looks very "hackable" in the sense that increasing the dimensions of the cuttable/engraveable area is largely a matter of getting longer rails. I'm guessing that if it was to get TOO big, the steppers would need to be upgraded with larger/stronger motors - which would probably mean increasing the power supply to those steppers. But anyway.

       

      Definitely going to look more at this one...you may have found the winner!

Sours: https://www.element14.com/community/thread/55443/l/demystify-cheap-ebay-laser-cutters

[Paul de Groot] wrote in to let us know about a drop-in controller replacement he designed for those economical K40 laser engravers that are everywhere on eBay. With the replacement controller, greatly improved engraving results are possible along with a simplified toolchain. Trade in the proprietary software and that clunky security dongle for Inkscape and a couple of plugins! [Paul] felt that the work he accomplished was too good to keep to himself, and is considering a small production run.

Laser engravers are in many ways not particularly complex devices; a motion controller moves the head in x and y, and the laser is turned on or off when needed. But of course, the devil is in the details and there can be a surprising amount of stuff between having a design on your screen and getting it cut or engraved in the machine. Designing in Inkscape, exporting to DXF, importing the DXF to proprietary software (which requires a USB security dongle to run), cleaning up any DXF import glitches, then finally cutting the job isn’t unusual. And engraving an image with varying shades and complex dithering? The hardware may be capable, but the stock software and controller? Not so much. It’s easy to see why projects to replace the proprietary controllers and software with open-source solutions have grown.

Cheap laser engravers may come with proprietary controllers and software, but they don’t need to stay that way. Other efforts we have seen in this area include LaserWeb, which provides a browser-based interface to a variety of open-source motion controllers like Grbl or Smoothieware. And if you’re considering a laser engraver, take a few minutes to learn from the mistakes of other people.

Sours: https://hackaday.com/2017/06/10/drop-in-controller-for-ebay-k40-laser-engraver-gets-results/
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Skr grbl

Apr 24, 2017 · The code. 0 F500. Grbl is a no-compromise, high performance, low cost alternative to parallel-port-based motion control for CNC milling. 1 for the printer and the SKR V1. Grbl's alarm mode is a state when something has gone critically wrong, such as a hard limit or an abort during a cycle, or if Grbl doesn't know its position. 99 29% Off 3 Axis GRBL USB Driver Offline Controller Control Module LCD Screen w/ Controller Board SD Card for CNC 1610 2418 3018 Wood Router Laser Engraving Machine 37 reviews COD US3. The laser uses a Ramps 1. 3 firmware? This is a GRBL open source can be used for Laser Engraving machine, CNC Engraving Machine etc. Displays the active gCode modes in the GRBL parser. Makerbase DLC Control Board GRBL Laser Engraving Mother Board NEW Open This is a GRBL open source can be used for Laser Engraving machine, CNC Engraving Machine etc. A post was split to a new topic: Jerkiness in motion using GRBL-LPC Grbl is really well supported on the 8 bit uno. 0 and smoothieware, support lcd2004/12864, On-board TMC2130 SPI interface and TMC2208 UART interface no additional wiring is If the maker movement was an industry, Grbl would be the industry standard. Can anyone share information about compatibility of these boards? And some info for start to make grbl-lpc works good on SGen (SBase) My setup now: Big Tree Teck SKR v. The picture below is an example of a board running GRBL. The skr boards are cheap, and Marlin supports them. 3 32Bit Controller Board + TFT24 Touch Screen + 5Pcs A4988 Stepper Driver Kit for 3D Printer Parts 13 reviews COD US. Grbl includes full acceleration management with look ahead. Boards General information. Looks like I am stuck with Marlin on the SKR. 0 1 ADET TFT24 2 ADET A4988. 1h almost right away (dynamic laser output based on stepper motor movement speed is a 1. Other CNC machines might use Grbl (which is mostly the same as Marlin) or Mach or LinuxCNC. DOWNLOAD Cults The BIGTREETECH SKR v1. 3 Is this a matter of using wire jumpers for wiring it correctly or is this an architectural issue and we can definitely say goodbye to using this firmware/board combination?Just worth noting for the next person who sees "GRBL-LPC Supported boards" that SKR 1. He runs grbl on an arduino controlling his Pocket Laser Engraver, and he manipulates the files somehow with his own 'gcodesender' script. As for the configuration, GRBL has serial commands for adjusting settings post-flash. 4 Turbo With DCDC Mode V1. After some research i found out GRBL-LPC isn’t an option because of step/dir pins not being on the same port, so i ended up with marlin (didnt hear much great stories about it on here), or smoothieware. 4/PRO/GTR. This CNC router can handle any length (within reason), the Y direction is only bound by your table length. I see this video to load GRBL on Arduino Uno R3. 0 and smoothieware, support lcd2004/12864, On-board TMC2130 SPI interface and TMC2208 UART interface no additional wiring isSelecting the pin for SPINDLE_LASER_ENABLE_PIN is fairly easy. Since for this simple example we will just connect to a WiFi network, we will do all the coding in the setup function. 0 V1. 14 17% Off BIGTREETECH® SKR V1. BIGTREETECH Upgrade Ender 3 Motherboard Silent Control Board SKR Mini E3 V2. After typing in the command, you have to press ENTER to send it to GRBL. It will run on a vanilla Arduino (Duemillanove/Uno) as long as it sports an Atmega 328. It’s open source, and in use by a lot of different firms including: That’s pretty much an all-star cast, so you can be sure GRBL has a vibrant ecosystem of products and people who can help and also that it has a bright future. 3 not compatible with grbl-lpc due pinout, so I forced to look towards other boards. . With XLoader load the GRBL code (grbl_v0_8c_atmega328p_16mhz_9600. If you want to update the GRBL version installed on your engraver to have all the advantages of the latest v1. 4 or any others boards as well. Moves are ok. 4 controller. Jan 08, 2019 · Grbl is a no-compromise, high performance, low cost alternative to parallel-port-based motion control for CNC milling. Most MakerBots and open source 3D printers have Grbl in their hearts. 4 Turbo. Simple and intuitive. 4 - The major difference over the Oct 07, 2019 · Flashing GRBL is as easy as adding a library and uploading a sketch in the Arduino IDE. It uses Marlin? It can also do grbl-lpc it seems, which would allow grbl usage as well (but I'm not sure this would work with more than 3 axis). 1f with GRBL Offline Controller Remote Hand Control for CNC Engraver Engraving Milling Machine Mini DIY CNC 1610/2418/3018 PRO. The Mostly Printed CNC¶. LaserUpgrades. A firmware known as GRBL is loaded onto this 328P micro controller. I cange this line number 511 at config. OpenCNCPilot is a GUI for Open-Source CNC controllers like GRBL or Marlin. This version of Grbl runs on an Arduino with a 328p processor (Uno, Duemilanove, Nano, Micro, etc). It is highly recommended that an external 1k-10k pullup resistor be connected to the SPINDLE_LASER_ENABLE_PIN. 2 with TFT24 display. h to platformio. 32bit board with LPC1768, support marlin2. Copy config to SD card and plug SD card to TFT24 display. The device has an integrated microstepping indexer, the sensorless stall detection technology StallGuard2™, the sensorless load dependent current control CoolStep™ and the completely noiseless current control mode StealthChop™ and is intended to drive a This breakout board for TI’s DRV8825 microstepping bipolar stepper motor driver features adjustable current limiting, over-current and over-temperature protection, and six microstep resolutions (down to 1/32-step). Long story short after failing to get any autobed leveling working under Marlin I decided to give Klipper a try since its come highly recommended by many folks on r/3dprinting and r/Ender3 . 0 Control Board Integrated TMC2209UART for Creality CR-6. Introduction This is a professional two-phase stepper motor driver. 3 for the other machines. Up until recently, Marlin used the jerk method (hence forth referred to as "archaic jerk") it inherited from Grbl for computing corning speed (junction velocity). 3/1. 3 + TMC2209 + CR-10 stock LCD Marlin 2. Its five motor outputs are powered by Pololu pin compatible stepper drivers. Sensorless homing works on both TMC2209 and TMC5160, BLTouch works, fans and heaters work, etc GRBL은 AVR용 Gcode 드라이버 펌웨어인데 여기서 사용한 규격에 맟춰 AVR보드를 만들면 CNC를 컨트롤하기위한 소프트웨어부분은 끝나는셈이다. You need to log in GRBL official website to download the software by yourself. 99 29% Off 3 Axis GRBL USB Driver Offline Controller Control Module LCD Screen w/ Controller Board SD Card for CNC 1610 2418 3018 Wood Router Laser Engraving Machine 37 reviews COD US. . 0. May 18, 2020 · Looks like you are correct Tim. 5 A per phase without a heat sink or forced air flow (rated for up to 2. Summary. 4mm, 25mm version. DRV8825 Stepper Drivers. Support CNC 3-axis laser engraving machine. For more information and help, check out our Wiki pages! Sep 25, 2020 · 32bit board with LPC1768, support marlin2. 61 US. Internally the X Controllers software (GRBL) instructs the 328P to pull up the limit switch lines/pins to 5V. Grbl Grbl (pronounced gerbil) runs on an Arduino microcontroller. h (#define BLOCK_BUFFER_SIZE 90 // Uncomment to override default in planner. 3/mini boards - great for printing. About the driver. The printer is a corexy type and uses a Rumba controller. Using the GRBL Mega-5X firmware. This can easily be a milling machine, 3D router, 3D printer, laser cutter, vinyl cutter, CNC plasma cutter, you name it. 4 Nema 23 Stepper Motor 1. DFRobot. Just select any free digital pin with a 0 to 3. Grbl-Mega-5x +/- RAMPS - Works perfectly for CNC and Laser, especially if you want Axes A, B, and maybe C. i am considering upgrading my 1768 SKR running cluster with this board which will run the stm32 flavor of grbl. 3 + Marlin 2. 95 BIGTREETECH SKR E3 DIP V1. 88. 4. The TMC2130 provides an integrated motor driver solution for 3D-Printing, Cameras, Scanners and other automated equipment applications. – This is all controlled by any control board you like. Cohesion and Super Gerbil bring me almost into Ruida territory price-wise… Which leaves me with Smoothie SKR 1. The screen boots into touch screen mode and can be used. 1 TFT24 Display. When I try and upload new firmware I put it on my sd card and insert it into the board. 4 Turbo installed into my Ender 5 Plus. Selecting the pin for SPINDLE_LASER_ENABLE_PIN is fairly easy. GRBL 1. 0 configuration for modified CR-10 - Configuration. 4 commandboard laying around and told me if i could get it to work i could have it. 0 LaserWEB4 (only as CNC GCode sender) This project is a Grbl-compatible CNC control panel with a 10" resistive touchscreen, hardware led cycle start, feed hold, and cycle stop buttons, custom macro buttons, spindle on and spindle off rotary switches, analog jog joystick, jog control knobs, feed override and spindle override knobs, an emergency stop, an MPG handwheel, and custom sender software. 3 Anet A8 Duet 3D wifi mks 1. Apr 01, 2018 · SKR 1. 81 10% Off Offline Version 1610 PRO 3 Axis CNC Router GRBL Control DIY Adjustable Speed Spindle Laser Motor Wood Engraving Milling Machine 0 review COD 4 Stepper Driver – DRV8825. Specializing in all disciplines; Router, plasma, laser and all other motion and linear control systems. The RAMBo board is an all in one 3D printer motherboard. h in marlin and in the case of the SKR V1. The firmware was setup the way that my working SKR V1. 4 Inch/6 cm Touch Screen Display, RepRap Smart Controller Panel, Similar To 12864 LCD, For SKR V1. h to perform homing only on XY and to set “zero” after homing cycle. 1 version, or if you need to re-program it after some error, of if you want to move a benbox engraver to grbl, LaserGRBL allows you to do this by installing from a list of selected firmware. h Features: 1. First board I ever bought…. No problems at all. Discuss Build RatRig V-Cast Fuchsia E3D V6 300x300 Titan drag chain Marlin SKR linear rail The Beast. Ender 2 Case and Base Plate for SKR 1. 415. need to upload CNC TFT24 firmware. I find the issue last night i think its not grbl but bluetooth module . That means the controller will look up to 18 motions into the future and plan its velocities ahead to deliver smooth acceleration and jerk-free cornering. 3V-5V logic level. GRBL The X and Y steppers are wired in series (or parallel) and wired to a single port. Thingiverse is a universe of things. If I remove TFT cable and hook rx and tx to tht header on board ESP3D works fine but lose functionality of display. 0 32Bit with TMC2209 UART Stepper Driver 3D Printer Parts for Creality Ender3 (Main Control Chip is STM32F103RCT7) 4. com www. This is a basics tutorial showing how to setup the BigTreeTech SKR v1. 1 Like Nonstopich (Alexandr Eanst) July 1, 2019, 4:48pm #5 Can I somehow check whether this I2C chip is there or not? GRBL 1. Y: GRBL needs all step (or dir) pins on the same port, which is not the case with the SKR I wold also like to use GRBL with a SKR V1. 3 and 1. Hi All it has been a while. 5 out of 5 stars 10 To configure your GRBL based board, you need to be connected with LaserWeb or a terminal program. MKS TFT24 Touch Screen. 5 out of 5 stars 44 In stock, ready to ship. mecannibalv (Braden) November 23, 2019, 10:32am Ender 5 working so well that I am re-thinking the retrofit of the SKR board. 1 firmware set for the I3RS32. 1 - with TMC 5160 V1. G-Code is supposed to be a standard. Many other boards are available. 4mm version is being released first. Licensing: Grbl is free software, released under the GPLv3 license. This is RAMBo v1. The I3RS is getting a little facelift, here is the list of modifications: 32-bit motherboard running Marlin 2. 3 32Bit Controller Board + 5Pcs TMC2130 Stepper Drivers + TFT24 Touch Screen Kit for 3D Printer Part 9 Reset GRBL Kill Alarm Lock Run Homing Cycle Lists work coordinate offsets (G54-G59), Predefined positions (G28 & G30), Coordinate offset (G92), Tool Length Offset (TLO) & Probing cycle (PRB). It is a full remix of our RAMPS design with the Arduino MEGA and stepper drivers all on one integrated PCB. In LaserWeb, you can send commands manually with the command line on the bottom right of the screen. mcdanlj (Michael K Johnson) split this topic January 20, 2020, 10:45pm #6. Category – This is all controlled by any control board you like. 5 out of 5 stars 1,415 One feature that is causing confusion in the Marlin community is the junction deviation setting. I then plug the board in via USB connection after setting the jumper to USB. Those are well supported, pretty inexpensive, but have a lot of features. Jul 01, 2016 · CNC stands for Computer Numeric Control, and these machines have been the subject of interest of hobbyists for some time. Please set the stroke in the command. 3 or MKS Gen L Enclosure. 99 29% Off GY-SAMD21 SAMD21 PCB Board Mini Sensor Module Pro Mini-sized IDE ATSAMD21G18 32-bit ARM Cortex-M0 FZ3482 Geekcreit for Arduino - products that work with official Nov 16, 2020 · Grbl driver is able to connect and init homing in the machine. There are other Marlin based boards, GRBL, and regular CNC boards as well. Application:use for DIY mini Engraving machine or Toy laser engraving machine. As I understand SKR 1. Support GRBL and benbox firmware. 8 compatible. Send $$ to get a list of the actual configuration. MKS Gen is a feature rich all-in-one electronics solution for Reprap and other CNC devices. It has been adapted for use in hundreds of projects including laser cutters, automatic hand writers, hole drillers, graffiti If it can run smoothie , then I think it can run bcnc, which is pretty good, like mach3 for grbl. Software GRBL and the original stepper controller only has one limit switch input per axis, so I've had to rewire the limit switches in series (because I'm using NC switches). Sep 06, 2020 · All that said, GRBL is out, the Mini Gerbil is out, as I will need Z capability and would eventually add a rotary unit. GRBL 0. GRBL은 AVR용 Gcode 드라이버 펌웨어인데 여기서 사용한 규격에 맟춰 AVR보드를 만들면 CNC를 컨트롤하기위한 소프트웨어부분은 끝나는셈이다. . 32 Bit 3D Printer Boards are becoming more and more common. 35 US4. The other unique player is the grbl_esp32 boards by Bart Dring. 3 32Bit Controller Board + 5Pcs TMC2130 Stepper Drivers + TFT24 Touch Screen Kit for 3D Printer Part 9 This firmware comes from master branch of gnea/grbl aligned to the commit of 30 august 2019. US. Through the fan connector. It is possible SKR 1. Apr 28, 2020 · Grbl is really well supported on the 8 bit uno. Oct 04, 2012 · 3 replies CNC, grbl, mill, smoothie 4 October 2012 As per my ScottCNC page , I am planning to use the Smoothie firmware running on an mbed to convert G-code movement and tooling instructions into step and direction signals for the stepper motors. 1 GRBL-LPC 1. This is a step-by-step guide to connecting your board to the various components of the 3D printer, configuring everything, from the beginning to actual printing. 3 board because they mixed up the pin mapping (compared to other smoothie compatible boards). 0] Shows the GRBL version and source code 3 Axis GRBL Control Board USB Port CNC Router Controller Board grbl 1. DOWNLOAD Cults. The experienced people that want to update can and have the most experience with this. like at 115200 usb perforated well but when it comes to bluetooth machine take a small delay to Perform every moves . Dec 05, 2020 · a collegae had a BTT SKR V1. 2 A per coil with sufficient BOARD_BIGTREE_SKR_MINI_V1_1 4010 #define BOARD_BIGTREE_SKR_MINI_E3 4011 #define BOARD_BIGTREE_SKR_E3_DIP 4012 #define BOARD_BTT_SKR_MINI_E3_V1_2 4013 #define BOARD_JGAURORA_A5S_A1 4014 #define BOARD_FYSETC_AIO_II 4015 #define BOARD_FYSETC_CHEETAH 4016 #define BOARD_FYSETC_CHEETAH_V12 4017 #define OctoPrint is the snappy web interface for your 3D printer that allows you to control and monitor all aspects of your printer and print jobs, right from your browser. ini for correctivity;) best of luck!An enormous, easy to pack away CNC machine that is largely 3D printed? Meet the V1 Engineering Lowrider2! In part 1 I made the parts and assembled the frame. It appears the SKR v1. It features an onboard ATmega2560. I like it for quick projects. 2 drivers. We are now US distributors of a Stepper Motor Driver based on a Trinamic TMC2130 and created by Waterott E Jul 29, 2020 · Look at GRBL, it uses an arduino uno or even nano. 4 with Marlin firmware and Vscode with PlatformIO extension. The extension board can be used for carving machine, 3 d printer driver expansion board 3. 00 Sponsored Promotion RepRapFirmware Raspberry Pi to SKR 1. There are more boards, but they are mostly forks of the grbl project and not well supported. Grbl-lpc on Skr 1. Marlin supports a wide variety of 3D printers, including all RAMPS variants, and is adaptable to virtually any Arduino/Genuino-based electronics through pin-mapping - associating pins with their functions. That is where it got the name RAMBo - (R)epRap (A)rduino-(M)ega-compatible (M)other (Bo)ard. 85 33% Off BIGTREETECH SKR V1. A list of official OpenPnP designs and community contributed hardware that is OpenPnP compatible. command type is streamed to Grbl like g-code, but starts with a $ character to tell Grbl it's not g-code. 3 boards were setup with just simply changing the board name in Config. On Github: cprezzi/grbl-LPC/releases Biqu Direct 3D Printer Part, TFT 2. I have the motors wired up so that no step direction invert mask is used (=0). It supports speed and direction control. Feb 2, 2021. In the description of this are the links to the programs and files of GRBL. SKR v1. The 2130 is like a 2100, but has the ability to be controlled via SPI if desired. Note you have to add the GRBL library to the Arduino IDE to get it to work, details here you go gents - config for SKR Pro v1. Worked just fine for me. 1 CNC controller MKS DLC v2. 3 3d Printer Parts Enjoy Free Shipping Worldwide! Limited Time Sale Easy Return. I especially like Grblgru for this one - simulation and/or machine control for free : ) Arduino + Estlcam - Works great for 3 axis CNC. GRBL-LPC needs all step signals on the same port, and all direction signals on the same port, which is not the case on the SKR V1. ini for correctivity;) best of luck! An enormous, easy to pack away CNC machine that is largely 3D printed? Meet the V1 Engineering Lowrider2! In part 1 I made the parts and assembled the frame. ACRO Openbuilds Pen Plotter (Arduino With GRBL and Raspberry Pi With Universal G Code Sender) by schemeandplot in CNC 128 7. Dec 04, 2020 · Marlin firmware mods for SKR 1. Control Commands M106 Sxxx and M107 Snapmaker (about wiring >>>) Pin1 FAN (red wire) + GND Pin7 (black wire) GRBL AIO V1-I + 3DTEK. In this way it’s almost the same as what we have done on the AIO. We use Marlin as controller software, so our g-code needs to be compatible with Marlin. Pete´s Playground Lerdge Company has been committed to the research and development and production of 3D printer core products, it has also developed X-series and K-series full-scale ARM corte-M4 cores. . 3 vs Ruida. A post was split to a new topic Grbl is really well supported on the 8 bit uno. 99, buy best 3 axis grbl usb driver offline controller control module lcd screen sd card for cnc 1610 2418 3018 wood router laser engraving machine sale online store at wholesale price. Everything worked! Until it didn't. This firmware was compiled with some changes to file config. CNC laser with GRBL firmware on board. Dec 01, 2019 · More details to come. Looks like there is a grbl-lpc. I did not go further because my machine is smoothieware powered, and got a limited compatibility with GRBL. m. 99 US. 99 £ 29 . The most important setting is Marlin is the motherboard. FREE Shipping by Amazon. 3K 4-Wire Horizontal Plotter by lingib in CNC GRBL 32 bits board (universal) (SKR V1. dmtulsa (Doug McDonald) February 4, 2021, 5:13am #4. Ender 5 working so well that I am re-thinking the retrofit of the SKR board. 2 V to 45 V and can deliver up to approximately 1. 4 with touch screen display looks like a great upgrade at . CNC3D is based on the sunny Gold Coast in Queensland Australia and provides high quality CNC and 3D printer kits, machines and parts. Can also operate just like a 2100. Grbl's system commands do things like control machine state, report saved I am planning on using the Bigtreetesch SKR Pro V 1. Running GRBL on a Mega 2560 with a RAMPS 1. 1 4 Core Shielded Cable (use for X Axis, Y Axis, Z Axis and A Axis with proper length for convenience). 3 mainboard. h. 3 Ethernet Smootstepper Smoothieboard Lerdge S,X,K mks dlc SainSmart Genmitsu CNC 3018 Laseraxe 3 axis board blackbox openbuilds DDCSV offline controller fystec f6 Sainsmart Genmitsu 3018 MX Toshiba MCB with Mach 3&4 Duet LAN Cheap 3D Printer Parts & Accessories, Buy Quality Computer & Office Directly from China Suppliers:Makerbase MKS DLC V2. The UltiMachine boards are recommended for the improved design and robust safety features. 3 out of 5 stars 104 £29. Hi. 89 US9. 1 32Bit Control Board + TFT24 Touch Screen+ 4Pcs A4988 Driver Kit For 3D Printer 0 review US0. h Cheap 3D Printer Parts & Accessories, Buy Quality Computer & Office Directly from China Suppliers:BIGTREETECH BTT SKR V1. here you go gents - config for SKR Pro v1. US. However I am committing to multiple rounds of performance testing of Marlin SKR vs Marlin RAMPS vs Marlin GRBL. Everything moves as expected. I see the TFT 35 has connector for wifi but not the 24. Configure GRBL settings To configure your GRBL based board, you need to be connected with LaserWeb or a terminal program. hex) on your arduino, then open GCodeSender to conect your Arduino to your pc and it's ready to use. First of all, we need to include the WiFi. But, it has a lot of uses, and a lot of ways it can be expanded. 0 WIFI BTT Writer Upgrade SKR V1. 3 SKR PRO, MKS Gen Control Boards Bigtreetech SKR Mini E3 V2. With a maximum current of 3. GitHub Gist: instantly share code, notes, and snippets. I am planning on using the Bigtreetesch SKR Pro V 1. bigtreetech skr v1. 1f or up feature). 3DTouch is an auto leveling sensor for 3D Printers that can precisely measure the tilt of your print surface. Hardware list – Parts. x; TFT touch screen and Marlin LCD, you can switch from one to the other, it’s 2 screens in one! “Mach3 is a CNC Game Changer. 23 US. Is very simple. Example - [G0 G54 G17 G21 G90 G94 M0 M5 M9 T0 S0. You can still use the common Ramps 1. RS-CNC32 Presentation; RS-CNC32 parts list; RS-CNC32 assembly Adafruit Industries, Unique & fun DIY electronics and kits TinyG CNC Controller Board v8 ID: 1749 - The TinyG project is a high performance, USB based CNC 6-axis controller that supports XYZ linear and ABC rotary axes with 4 motor outputs. Groover uses Inkscape to generate the cutting/engraving files. 3 Ethernet Smootstepper Smoothieboard Lerdge S,X,K mks dlc SainSmart Genmitsu CNC 3018 Laseraxe 3 axis board blackbox openbuilds DDCSV offline controller fystec f6 Sainsmart Genmitsu 3018 MX Toshiba MCB with Mach 3&4 Duet LANInevitably I needed the SKR board to run a Mainly Printed CNC router that I was building, and I had the CNC Shield, some spare DRV8825 stepper drivers and a spare Arduino and thought I would give it a bash instead of splashing out for another BTT SKR board. 1 TinyG Smoothieware Marlin Settings Machine Profiles Machine File Settings Gcode Application Camera Macros Tools Working with Files Working with SVG Working with DXF Working with Sketchup Working with PNG/JPG/BMP CAM Operations GRBL¶ The X and Y steppers are wired in series (or parallel) and wired to a single port. One Time Tips, You Can Pa The Smoothie project is always looking for help, whatever your skills are, there are things you can do to improve the project with the other volunteers, if you feel like you could give us some of your free time, please contact us, help and working together is what has made this project so neat, advanced and precious over the years, and is very welcome. A 32-bit ARM board for £15 is quite amazing really, no more messy TMC added wiring. 4 board. Ultra easy way: The SKR v1. ” When I got started in CNC 15 years ago, the only CNC software available was DOS based, or too expensive for a hobbyist to afford. It has been adapted for use in hundreds of projects including laser cutters, automatic hand writers, hole drillers, graffiti painters and oddball drawing machines. The skr board wont work with grbl=lpc but the mks sbase US. ) & machine run smooth at starting and Installing Marlin (Re-ARM) Before reading this article, you should have already read Installing Marlin and downloaded the Marlin source code. Get it as soon as Tue, Mar 9. US. The cnc is a desk top type called a 3018 Pro (on order) and uses a GRBL controller. 3 is not compatible with grbl-LPC, because the stepper pins are spread over multiple ports. 3! Jan 26, 2016 · There are tens of models of Laser engravers on ebay that ship with a Grbl based controller If you are building a DIY laser (lasersaur, openbuiilds freeburn, openbuilds freeburn2, buildlog 2x Cheap 3D Printer Parts & Accessories, Buy Quality Computer & Office Directly from China Suppliers:GRBL 1. 2 Control Board, 32 Bit with TMC2209 UART Driver Upgrade, SKR Mini E3 V1. com is the number one paste tool since 2002. Probe interface: for Z axis tool zero. Important: Read the documentation, especially the section on powering. On Github: cprezzi/grbl-LPC/releases 3 Axis GRBL Control Board USB Port CNC Router Controller Board grbl 1. Learn about connecting the laser to the 3D printer. 4 are not supported and won't be supported. Ender 3 Pro - SKR 1. This improves on the Cronos by adding in a SD card reader and touch screen, but while it does have a heat bed driver that is probably not strong enough to drive the spindle. These boards have more powerful processing power and operate the machine with more capabilities. Except that we seem to use a larger cap on filters on all the IO lines. 1 ADET MKS DLC 2. Would I have any problems setting up five limit switches and five motors in the SKR v1. 4 Turbo unsupported? So recently I decided to upgrade the motherboard on my Ender 3 Pro to the new SKR v1. If the maker movement was an industry, Grbl would be the industry standard. Uses removable A4988 or DRV8825 compatible stepper drivers. 2 for Ender 3/CR10 3D Printer Designed for GRBL systems upgrading to more than 3 axes, featuring a max step r A 6-axis CNC Controller based on the STM32F103C8T6 in module form (BluePill). If you haven’t done these steps yet, take one step back, then follow the link back to this page to continue with the install process. The Mostly Printed CNC (MPCNC) is a platform to precisely control motion. I ponticelli nella foto offrono l'opzione per fare entrambe le cose. Hello. This project is a Grbl-compatible CNC control panel with a 10" resistive touchscreen, hardware led cycle start, feed hold, and cycle stop buttons, custom macro buttons, spindle on and spindle off rotary switches, analog jog joystick, jog control knobs, feed override and spindle override knobs, an emergency stop, an MPG handwheel, and custom sender software. Kingprint SKR V1. 3. 81 10% Off Offline Version 1610 PRO 3 Axis CNC Router GRBL Control DIY Adjustable Speed Spindle Laser Motor Wood Engraving Milling Machine 0 review COD Dec 12, 2019 · Unfortunately you will not be able to use GRBL-LPC on the SKR V1. Make sure your steppers have enough drive and I agree I think 3m x 3m is too large for a belt, you'll get stretch. 3 firmware? US. cn 1 1. I see this video to load GRBL on Arduino Uno R3. 32bit board with LPC1768, support marlin2. Biqu Direct 3D Printer Part, TFT 2. After fighting (G31 probe command ) with really bad designed and closed source USB-parallel Adapters for my CNC (in particular: NC200 / RTM200) and due the fact, that GRBL is using the old fashioned ATmega328 i researched a bit about a GRBL conversation for ARM (better STM32), but I'm a little bit disappointed: Jan 11, 2021 · GRBL is an useful open source software that helps in effective control of CNC machines. Software SainSmart 3-Axis GRBL USB Driver Controller Board DIY Engraver Control Board for GRBL 4. 5 A continuous, the TB6600 driver can be used to control quite large stepper motors like a NEMA 23. If not 5X then there is another flavor just as there is a flavor for the ESP32. Make sure to change the platformio. 3 has the option of using smoothie software like bcnc, and also pronterface. Printrun is a 3D printing host software suite which talks to your printer and handles the printing process. Just goes to show how the rest of the world inflates their prices, plus how little the chinese workers get paid etc. If you would like your design featured here, please email [email protected] Youtube video footages >>> ANNOY TOOLS (Mana) Testing a PWM signal CNC laser with GRBL firmware on board. 3 Is this a matter of using wire jumpers for wiring it correctly or is this an architectural issue and we can definitely say goodbye to using this firmware/board combination? Jan 06, 2020 · Grbl-lpc on Skr 1. Does anyone know of good way to connect ESP-01S to BTT SKR Mini E3 v1. Install Xloader to PC,upload GRBL firmware to MKS DLC mainboard. Lot's of configurations and it uses standard GCode. Ultra easy way: It appears the SKR v1

Sours: http://gemeinsam-wohnen-im-bergischen.de/GO8d

The best laser cutters in 2021

The best laser cutter used to be the sort of thing that only big businesses could afford. But nowadays prices have come down a lot. So while they're still quite expensive, if you want to do laser-powered cutting or engraving on a range of materials (including metal in some cases), they're a tempting buy.

Here we've listed the best laser cutters available in 2021. Choosing between them will come down to a number of considerations.

If you want to create products you can actually sell, you're going to need an accurate and reliable machine that won't cost a fortune to run. You'll also need to think about the price of replacement parts. And if you're planning on getting a production line up and running, you'll want a machine that can cut at speed.

Also, it's worth checking you actually have room in your home for a laser cutter. Not only do you need to make space for it, you'll also have to think about ventilation. Plus, depending on what you want to make with it, you'll also have to pay attention to the size of the cutting plate. You don't want to end up with something that's too small to work with.

For more supplies for your home office, also see our guides to the best chairs, the best desks, the best printers and the best 3D printers available today.

Best laser cutters in the US

01. Ten-High Upgraded Version CO2

The best laser cutter overall

Materials: Various (not metal) | Engraving area: 400 x 600mm | Power: 50W, 60W, 80W, 100W | Speed: 3600mm/min

Red light positioning system

Adjustable laser power

Automatic lifting platform

Not suitable for metal

The High-Ten Upgraded Version CO2 is the best laser cutter you can buy right now. This capable machine will cut everything from acrylic and plywood to leather, glass and cloth. It's compatible with CorelDraw, and there's a handy USB port you can use to get your designs onto the machine. 

There's a red light positioning system to make it easier to accurately line up your materials, plus a suspension system that immediately halts the laser whenever you open the doors. Speaking of doors, the front and rear double doors allow you the space to engrave materials of any length. Note, though, this machine won't work with metal.

02. 130W Reci W4 Co2 laser tube engraver and cutter

The best deluxe laser cutter

Materials: Plastic, wood, bamboo, paper, acrylic, marble, glass | Engraving area: 13000 x 900mm | Power: 117W | Speed: 0-60000mm/s

Big working area

Compatible with AutoCD/CorelDRAW

Not suitable for metal

Needs lots of room

If you don't mind splashing a bit of cash, then get the 130W Reci W4 C02 laser tube engraver cutter machine, which has an engraving area of 1300 x 900mm. It's speedy and precise and can cope with a range of non-metal materials, including glass, paper, bamboo and rubber. 

Its compatibility is also decent, as it supports AutoCAD, CorelDRAW, as well as a range of file formats. Just be mindful of its size; with dimensions of approximately 72 x 56 x 41 inches, this is a beast of a machine, so make sure you have the space to accommodate it.

03. Triumph Fiber Laser Cutting Machine

The best laser cutter for metal

Materials: Metal | Engraving area: 200 x 200mm | Power: 500W, 750W, 1000W | Speed:

Excellent for metal

Comes with software installed

Nice touch screen

Expensive

The Triumph Fiber Laser Cutting Machine is made for cutting metal, making it ideal for engraving. You can cut aluminium, stainless steel, copper, gold and silver without shadowing thanks to a high-speed galvanometer. 

This isn't cheap but as a result you get a very capable system able to cut on a work area up to 200 x 200mm and at a rate of 9,000mm/s. The interface is relatively simple to use with a touch screen and support for .CAD, .JPG, .PLT and plenty more. And best of all, it comes with software pre-installed so you can get right to work. 

04. LaserPecker L1 desktop laser engraver

The best laser cutter for portability

Materials: Wood, corrugated paper, leather, fruit, felt | Engraving area: 10 x 10 cm | Power: 1600mW | Speed: N/A

Bluetooth connectivity

Great for small projects

Inconsistent quality

No deep engraving

The LaserPecker L1 Desktop Laser Engraver is a miniature laser cutter you can keep right on your computer desk. It's also portable enough to bring with you should you want to do some creative work away from home. 

Just connect the engraver to your phone or tablet via Bluetooth and you can transfer your designs to wood, felt, and corrugated paper, among other light materials. You can even engrave fruit, if that's your sort of thing. A pair of safety goggles are included too.

Best laser cutters in the UK

01. Ten-High Upgraded Version CO2

The best laser cutter for home use

Materials: Various (not metal) | Engraving area: 400 x 600mm | Power: 50W, 60W, 80W, 100W | Speed: 3600mm/min

Red light positioning system

Adjustable laser power

Automatic lifting platform

Not suitable for metal

The Ten-High Upgraded Version CO2 is a really capable laser cutter. Thanks to a handy USB port, it's easy to get projects onto this machine that can cut at a rate of 3600mm per minute on its 400 x 600mm cutting plate. 

On that platform you can cut all sorts: acrylic, plywood, density board, leather, wood, double colour plate, glass, cloth, bamboo, paper to name a few. A red light positioning system makes cutting easy to line up while a cooling system keeps it safe. Note, though, that it won't cut metal.

02. Orion Motor Tech 40W laser engraver and cutter

The best laser cutter for hobbyists

Materials: Various (not metal) | Engraving area: 200 x 300mm | Power: 40W | Speed: Not stated

Works with range of materials

Positively reviewed

Included software not good

Can't use for metal

The Orion Motor Tech 40W is a versatile laser cutter for hobbyists, and like most of the models in our list it will work with a wide range of materials, but notmetal. There's a decent-sized 300x200mm surface, with clamps to keep your cutting material in place and a level board to enable you to work with bulkier objects. A red dot pointer indicates the engraving point and path, to help you ensure you get the right position and scale for your object. 

There are four detachable wheels you can use to move this laser cutter around easily. Finally, while this machine does come with software, reviews say it's not worth bothering with, and recommend downloading k40 whisperer and Inkscape instead.

03. Orion Motor Tech 30W fiber laser engraver

The best laser cutter for metal

Materials: Metal and other various materials | Engraving area: 20 x 20cm | Power: 30W | Speed: 700 cm/s

100,000-hour laser supply

Precision field lens

Great for engraving gifts

Bit of a learning curve

The Orion Motor Tech 30W fiber laser engraver is a versatile machine that can handle metal, rubber, leather, and much more. It's equipped with a super-precise Raycus laser that's guaranteed for up to 100,000 hours of use. Attach a rotary axis (not included) to engrave wine glasses, cups, bowls, and other circular objects. If you're itching to open up an Etsy shop featuring a wide range of engraved gifts, this machine will be well worth the business investment.

Read more:

Sours: https://www.creativebloq.com/buying-guides/best-laser-cutters

Ebay machine laser engraving

WARNING!!!

Ammeter add-on was on my to do list for a long time. It’s important to know what current is flowing thru your CO2 tube so you don’t shorten it’s life. Ammeter measures current and in case of this SH-G350 machine you’ll want ammeter rated in the 0-30 or 0-50mA range because most CO2 laser tubes run under currents under 25mA.

Safety_safety_sign_high_voltage

There’s extremely high voltages inside laser cutters!  It can kill you in an instant.  Power off and UNPLUG your machine from AC outlet before doing anything and wait for a while (at least an hour) as power supply may retain deadly voltage in the capacitors even after you unplugged it.  I will not be held responsible for anything that might happen to you, so please only do this at your own risk. Also I’m not an expert and don’t have electrical engineering degree so anything I say in this article could be wrong.

Please keep in mind that by making modification to your laser machine you most likely will void any warranty you might have.

And final warning. If you do use hole saw, you’ll probably have “extra” opening not covered by your ammeter.  At least that’s what happened to me. I covered it with some tape for now, but you might want to cut some plug/cover later on…

Picking Ammeter

ammeter

I highly suggest to get an analog ammeter rather then digital one. Digital ammeters are really cool, however they require separate power source (usually 5V). But that’s not a big issue. Problem with digital ammeters that they are slow so you might not even see change in current if laser pulse is short. Analog ammeters show current changes in real time.
I bought a really cheap SMAKN 85C1-A DC 0-50mA ammeter on Amazon.  It might be out of stock at this time, but they are pretty much the same. Just pick a DC (not AC) one in the 0-50mA range, as it will never go over 30mA mark anyway.

Other parts and tools you will need

  • Long piece of 14-18 awg wire
  • Heat-Shrink tubing
  • Solder
  • 1.5 inch bi-metal hole saw (diameter might be different if use different ammeter)
  • AC Powered drill (battery powered might not cut it)
  • Needle nose pliers
  • Wire strippers
  • Soldering iron
  • Round file
  • Paper towels
  • Vacuum cleaner

Step 1: Prep

Find a suitable place for ammeter. Make sure there’s nothing that’s already in the machine behind that space. On my SH-G350 I had plenty of empty space in the front top region so that’s where I decided to install it.

Triple check that machine is unplugged and there’s no residual voltage left in power supply.

Cover power supplies, etc. inside from getting metal shavings. These might cause shorts and all kind of damage if they get inside electronics. I used paper towels to cover power supply.

Step 2: The thrill of drill

There are few options to attach ammeter. Some choose to make enclosure for it and attach to the outside of the case. This is non-destructive method. I decided to permanently install meter by drilling several holes in the metal of the laser cutter’s case.

If you inspect back of the ammeter (assuming yours is same as mine), you will see a long stem with 2 screw posts where you will connect wires, as well as 2 more mounting screw posts.

ammeter_back_text

I chose to drill big hole for the “stem” and two smaller ones for the mounting screws.  Unfortunately stem is oval in shape, so if you drill round hole it will leave some opening that will be visible when ammeter is installed. That’s the sacrifice you’ll have to make 🙂  Alternatively you can drill several smaller holes and file them down until they match shape of the stem.

Pre-drill small pilot hole (optional but recommended). Then using your 1.5″ hole saw with pilot bit attached, drill big hole.

20151120_100326

Some tips. Add cutting oil on the saw teeth first, it will make drilling faster and will do less damage to your hole saw.  Make breaks to let saw cool down a little and remove metal shavings.  If your saw is dull it will take really long time…

20151120_100348

After big hole is drilled, you might want to deburr sharp edges with file. Mark spots for drilling smaller mounting holes. I put some acrylic white paint on tips of the ammeter’s mounting posts and positions it in the hole, making marks with paint on the metal. Or use any other measuring tools like calipers to find where holes should be.

Pick a drill bit slightly larger than mounting screw posts and drill at marked locations.20151120_101115

Now try and see if ammeter fits inside.  In my case it didn’t because stem was slightly wider in two places. I used round file to elongate hole until meter fitted.

Use vacuum cleaner to clean the mess you created and carefully remove paper towel from insides of the machine.

Step 3: Wiring

Wiring is actually not that difficult. You will place ammeter on NEGATIVE wire.  Without ammeter negative wire goes from Power supply to the Negative terminal (cathode) of the CO2 tube. What you are going to do is cut this wire and splice ammeter between both ends of “cut” wire.  Current will be going thru CO2 tube’s cathode, into ammeter 1st terminal, and then out of it’s second terminal and finally into power supply. This is shown on the rough schematic below:

ammeter_circut

Ammeter’s terminals usually have some kind of marking. If you see “-” sign near one it means that end goes to power supply, and other goes to CO2 tube’s cathode.  But if you accidentally reverse polarity, ammeter’s arrow will jump to negative space (below 0) and as long as you send very low current you probably won’t damage it.

Hope this makes sense.

Now let’s make physical connections.  Find place where negative wire from PSU spliced with wire going to CO2 tube’s cathode and cut it somewhere there, but you’ll most likely want to have a longer piece of wire coming from PSU because it needs to reach ammeter which attached in the front.  But no worries if it’s too short, then you’ll just need to solder extra piece of wire (don’t use wire thinner than 20 awg) long enough to reach ammeter’s negative lead.
Don’t forget to use a piece of heat-shrink tubing or electrical tape to insulate that joint.

ammeter_back_text

Place a washer that came with ammeter in to negative post. Take negative wire from PSU (with optional extension), strip the end, and wind around ammeter’s negative post. Insert second washer on top. Then insert spring washer and finally screw in nut until wire is held securely.

Now cut of good thick wire (I used 14 AWG speaker wire), and cut it so it can reach all the way from ammeter to the wire connected to CO2 tube’s cathode.   Attach it to remaining terminal of the ammeter just like wire from PSU.

Strip second end and solder to the wire coming from CO2 tube’s cathode. Cover joint with electrical tape or heat-shrink tubing.

Step 4: Pre-Test

Before permanently attaching ammeter, make sure that you wired it correctly and polarity is not reversed.  Put it somewhere securely so it’s terminals are not touching anything.

Set laser min/max to smallest possible power setting at which your machine fires. On mine it was 10%.  Do a pulse and see which direction arrow on the ammeter moves. If it tries to move below zero, you wired it in reverse.  If that’s the case unplug machine, wait for PSU to discharge and fix wiring issue by swapping wires on ammeter’s terminals.

Step 5: Finish installation and final test.

20151120_102226

Unplug machine and wait for power to dissipate from PSU.

Install ammeter using mounting screw posts, washers and nuts. I used needle-nose pliers to tighten nuts.

Now test your machine and check which current you get at each power setting. Do not go above 20mA if you still have factory tube (50W machines actually come with 40W CO2 tubes).

Here are my results:

PowerCurrent reading
10 %4 mA
20 %~8 mA
30 %8 mA
40 %14 mA
50 %16 mA
60 %18 mA
70 %20 mA
80 %20 mA

I didn’t go over 80% because my tube can’t handle it.

Sours: https://www.lensdigital.com/home/how-to-add-ammeter-to-50w-chinese-laser-cutter-from-ebay/
I Buy a $2,000 Chinese Co2 Laser, What You Need to Get Started

So I ordered a laser and I went big!  I had been looking for a CO2 laser for a few months on settled on a 60 Watt, it seemed like middle ground between too weak and too strong.  I could not be happier.  I have successfully etched glass, acrylic, many woods, ceramic cups. powder coated stainless steel tumblers and more to come.

You can see a few of the results below.

20190513_162024

The purchase (eBay):

1 each Laser Engraving Cutting Machine Pro USB 60W Co2 Laser Engraver Cutter 20″ x 28″ from acautoparts04 or search “60W CO2 eBay Laser Engraver”

  • This is 60 Watt CO2 Laser operating in the 10600nm wavelength.  Commonly called the X700 or Redsail there are many clones of this. It is controlled by a RDC6442G-B (EC) Laser DSP Controller that works with RDWorks8 Software (included on the CD).
  • About $1800.00 plus $150.00 for Residential Delivery. Residential delivery is a separate item you will need to purchase for a truck that comes with a lift gate.

1 each Vevor 110V 60Hz CW-5200DG Industrial Water Chiller for CO2 Laser Tube or search “CO2 Laser Chiller”

  • The laser comes with a tub with no lid and a large aquarium pump.  I didn’t like that option so I ordered an industrial chiller.  You can opt for a 3000 of 5200 model, I purchased a 5200.
  • NOTE: You will need spare fuses for the Chiller.10 amp 250v fuse 5x20mm  I bought a large pack, I am up to 15 amp and holding strong.  The fuse is locate at inside the plug in the back.  Lock close, it pulls out with a flat head screwdriver.
  • Needs to be set to 30C or below to prevent laser degredation.  I run at 16C.

1 each Rotary Axis for CO2 Laser

1 pair CO2 Laser Protective Glasses must cover 10600nm wavelength.

1 each 4″ 6″ 8″ Inch Inline Duct Fan Ventilation Exhaust Plastic Fan w/Speed Controller or search “Inline variable speed fan 6 inch”

  • The laser comes with a loud and inefficient Exhaust Fan.. this will quiet things down.

1 each Spare CO2 Laser ZnSe Lense, 18mm Diameter, 38.1 (1.5 inches) Focal Length or search “co2 laser znse Lense, 18mm Diameter 38.1 Focal Length”

  • My lense was damaged but was replaced by warranty quickly.  I bought a few spares.

3 each Spare CO2 Laser Si Mirror 25mm Mirror

1.5 Gallons of Distilled Water from my local Safeway

1/4 Teaspoon Dawn Dishwashing Soap to prevent bubbling in the laser tube

1 cap Regular Unscented Bleach to prevent Algae and microbe growth

3-4 Weeks of Waiting.

You will also need 4 110V plug ins.

Arrival and Preparation:

The laser arrived in a solidly built plywood box.  It was relatively easy to open.  The laser is secured to the bottom pallet with 4 long angry screws.  Once removed you can roll it off the pallet.  It will require someone strong to help, you have to get the hose out from under the machine.

The laser has 4 heavy duty wheels which  make it easy to roll around.  When in place, you screw down 4 rubber stoppers to prevent movement.

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The delivery was on time

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The driver lowered it with the drop bed and rolled it into my Garage with a pallet jack.

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Pretty cool but also heavy.  I broke out the crow bar.

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Hello!

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Access Granted.

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Well packed

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Lots of goodies packed inside.

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The tub is actually the water basis that you are expected to use.

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We have the keys!

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Clean wiring, from Left to right, Controller, 20190513_162523

Meet the RDC6442G-B (EC)

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Remove the protective paper from the lid sheeting.20190513_163356

Remove the screws, remove the coating and reinstall

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Another view.

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All cleared up.

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The chiller

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It was kind of wet but still worked.

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All the goodies.

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A view from the side panel.

Setup:

This is a quick and dirty list for setup.  I will expand with more detail soon.

Open crate

Unbolt 4 screws on leveling pads.. 8mm socket

Loosen leveling pads with 26mm wrench

Remove two big blue hoses by lifting one side.. heavy lift, bring a friend.

Lift one edge to remove box fan.

Keys are tied with ribbon inside lid

Laser carriage is tied with ribbon.. Remove ribbon and remove box

Remove 4 screws, loosen 4 to remove paper on viewing window x 2

Unbox air compressor.. Test by plugging in directly to wall

Unbox fan, Test by plugging in directly to wall

3 hoses, 1 for air 2 for water, in out

Chiller fill and prime and turn on, set. Chiller will blow fuses if in a hot area

Zipties to connect water and air lines rather than hose clamps

Ground your laser.

Check lenses, mirrors, belt guides (especially down low in the back) for tightness.

Clean lenses and mirros with Lense Cleaning Wipes

Laser alignment –

With laser turned on, use tape or post-it notes and press pulse.  Sometimes you will not see the hole, look close after each shot.  The longer you hold pulse, the longer the laser will burn.

This is a pain and takes patience.  More details coming shortly.

Start with lense closest to laser tube verify center plus or minus 4mm
Lense 2.. center as best as possible at near and far settings
Lense 3.. dead nuts near and far for all corners. The more test shots the better
Lense 4 – laser head vertical alignment… laser needs to be shooting straight down, you can use a square to verify laser head alignment.

Test cut

Straight line on test piece of 3mm wood to determine best kerf.  Wood should be sitting 3mm piece of wood on one end like a ramp.

Laser should be bright when cutting

Laser works RDworks from CD.

  • Power setting 1 and 2 should be the same
  • Need to adjust diameter in user settings when using rotary.
  • More to follow.

Use Inkscape (free), Gimp (free), Corel or Photoshop/Illustrator to manipulate images.

I owe you more, it’s on the way.


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