When centered in the slicer correctly, without offsets defined in the slicer, the printer is most probably incorrectly configured! Luckily you can do something about that! Basically, you will have to calibrate the printer for a new center.
First of all, the firmware determines where your origin of the printer is. This implies that you need to properly set bed dimensions and offset values from the end stop switches in the firmware (usually not necessary out-of-the-box, but important when a newer or different firmware version is uploaded). These offsets determine where the origin of the bed plate is located. For Marlin firmware it is very common (for most printers) to have the origin specified at the front left corner (when facing the printer). From the configuration of Marlin we find the origin is e.g. in the front-left corner. Note that this can be rotated 180 degrees in certain printers, so the aft-right. Also be aware that there are a few printers that have the origin in the center, e.g. Delta's and a few Cartesian printers. Marlin definition (edited snippet) of a common bed layout:* +-- BACK ---+ * | | * L | (+) | R * E | | I * F | (-) N (+) | G * T | | H * | (-) | T * | | * O-- FRONT --+ * (0,0) * .(-Xh, -Yh)
How do I find the physical origin of the printer?
This can be tested by instructing the head/nozzle to go to e.g. (0, 0, 15) using a terminal/console or a simple G-code file with a move to that coordinate that you print from SD card (e.g. ); note a Z of 15 is chosen for safety!. When this is performed, the nozzle should be at the (elevated, so X, Y) origin as defined by your firmware. Usually this is at the left front corner of your build plate (there may be clips there, so therefore the elevated value), but this may be different depending on the firmware settings or firmware brand.
Next step is to configure the slicer as such that this coincides with the actual origin. Incorrect slicer settings can cause the slicer to assume the origin is at a different position than your actual position. In Ultimaker Cura, the "Origin at center" is notoriously known for this when the physical origin is not in the center, but in a corner. When the slicer is properly instructed, but the origin is still not at the corner of the build plate (beware! in some printers the origin is in the middle of the plate) you might have incorrect endstop to origin offsets.
Determine the offset first!
To quantify the offset of the center as it is known by the printer software (firmware) it is advised to print a large square that is a few percentage smaller than the maximum size of the bed. E.g. you can create a square hull at e.g. 90 % of the dimensions of the bed (parametric designs are very useful for this purpose, see e.g. this design). There are many things ( models) to be found on the internet. If it includes a cross, even better as some platforms have a mark in the center of the bed.
Example of a bed center calibration model
Once printed, measure the distance from every edge from the build platform to the printed square. If you fail to print the square, please check the level of the platform; this is also an excellent test for the level of your bed! The measurements should give you a notion of the offset of the bed. E.g. for the X-axis you measure a distance of 12 mm on the left and 8 mm on the right (when facing the printer) you can easily deduce that the center is (12 - 8)/2 = 2 mm to the right (positive X direction). This implies that the printer manufacturer has done a lousy job by delivering you a printer with an offset bed; better said incorrectly configured in their firmware. Note this is not uncommon!
How to fix this!
Once you quantified the offset, you want to be sure that your next print prints in the middle of the bed. How to proceed? Basically there are a couple of solutions you can use, each with its own advantages and disadvantages.
A simple solution (i.e. if the printer support this) is to adjust the position of the endstops. Alternatively you can print alternate endstop holders to match the position change as measured from the calibration print.
Another simple and popular solution is applying an offset in the slicer. You could do that in the printer options some of the available slicers. If such options are not available, you could add G-code commands in the start code to create the offset (e.g. X-2 moves to the left and resets the X origin). Note that this is a quick fix and should be applied wisely. The printer does not know where the actual center is! You merely changed if after the homing sequence. Exchanging with fellow enthusiasts with the same printer may have adverse effects.
A far better solution is to fix the center in the firmware so that the printer knows the actual center. This requires some extra effort by uploading firmware (files including configuration settings) to the printer or send G-code commands. The latter option will be discussed first.
- A prerequisite of this method is that it requires the G-code command to be supported by your firmware; note that not all 3D printer firmware solutions are able to use this G-code command for axes offset definition. E.g. the stock Anet A8 runs a modified Repetier version that does not support , it would be time to upload a new firmware like e.g. Marlin Firmware making this particular printer safer as the stock firmware does not include thermal runaway protection! See question: "What is Thermal Runaway Protection?". To send G-code commands to a printer you have the option to hook up your computer to the printer over USB and use a 3D printer program that support sending commands to the printer (this is called a terminal; i.e. an interface to the printer). Programs like PronterFace, Repetier-Host, OctoPrint, and probably many more have such an interface. A simple alternative that works also is creating a text file (with extension) with the commands on separate lines and executing the "print". The following codes need to be sent: e.g. (move center left and to the back, note to use integer values, float values are not allowed!) and store this new center with .
The final, best solution is to set it fixed in the firmware. This requires an upload of a more recent configured version of an applicable firmware. See e.g. question: "How to upload firmware to reprap printer?". Note that there are different methods to upload a firmware to the board, it is best to search the internet for the applicable method for your board.
- To do that you will have to be comfortable with computer software and tools to build source files and upload binary code to the printer. This depends on the type of firmware you choose and therefore cannot be described for each firmware in detail. Various sources on the internet describe this process. Generally speaking, it requires you to set the bed and offset values/positions correctly. For Marlin Firmware this comes down to changing the settings in the configuration file, this is similar in other firmware software solutions:
Hello all, very new to 3d printing and looking for some help/advice. Warning this may end up being a long post.
Wanted a 3d printer for years and due to everything going on, i have some time on my hands.
I bought this: https://www.ebay.co.uk/itm/3D-Printe...72.m2749.l2649
It was nice and cheap and was also a project for me.
I have sucessfully built it, including ordering parts like bolts and threaded rod which they forgot to include. Learned a lot about it thorugh tinkering, and did my first print a couple days ago, it turned out much better than expected. here is pics: https://i.imgur.com/zplnSK8.pnghttps://i.imgur.com/F2WEESe.pnghttps://i.imgur.com/UjjO4Ar.png
Im fairly chuffed with how it turned out, couple things need sorted like there seems to be a bit of wobble on the veritcal cab part, but have a feeling new bearings would fix this as there is a bit of wobble in the extruder carriage.
I also had an issue with the heatbed not working, have since fixed this. Learned it needs to be set before everyprint.
This was sold as a beginner printer, i do not think this is a beginner printer at all.
My main issue and why i am posting here for help is an issue with centering. I have used all the google fu i have on this.
Basically when i go to print a file (using CURA) with custom profile i set for my printer. it shows the object in the centre.
But when i print, its printing in the back left corner of the heatbed.
I have been through every menu on the printer, multiple times.
I found a "set origin" option and manually moved the extruder to centre and tried it and nothing happened. I tried starting a print with the extruder here aswell, but they return to "home" before starting. home seems to be, platter all the way back, vertical all the way down, and extruder all the way to the left.
After some googling last night someone advised me to change the firmware to Sailfish? I believe its currently on marlin. I have the skills to do this, im worried however that if i change the firmware, it will loose settings/parameters that are needed to print and i will not know what to put in to get it working again.
Any help or advice on this is greatly appreciated. Because i am now lost.
Here is a bonus octopus i printed last night. : https://i.imgur.com/aJrWcNc.png
(Im also using the cheap filament that came with the printer as im waiting on a kg spool to arrive, which may also help with print quality a bit)
I dont remember how many times I finished, but only from the realization that I am e. um like a real woman, I let out moans and sighs. When he entered me to the full depth, I tried to raise the pelvis and feel all of it. My moans led Yura to an orgasm, he began to move more energetically, taking me by the hips, he pulled me towards him, I began to.
Origin set anet a8
In the initial period of "debriefing", when she had not yet imagined that I would go so far, I called your home late in the evening, and my daughter came to the phone. I ask you to hand over the phone to mom. The girl with tears in her voice says that she and Tigran went out into the city: And she continues: Jig (you know perfectly well this her appeal.
To me and that this is how they only address very beloved people, but not you !!!), why Do you call so rarely. Can I call you myself.Anet A8 origin problems
Lying was kind of strange. Apart from me, no sick people were seen here. In any case, by the neighborhood with me. Jenkins explained that this is a rare case, therefore. I was allowed to go out only into a tiny little corridor - about fifty or sixty feet in length, no more.
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It, but I liked it. "Very, you are the best" - I turned to face him and kissed him on the lips. He penetrated my mouth with a tongue and we intertwined again in a.