Prusa MK3S X Axis Error
Hey all, I'm very new to all this so please bear with me.
I was recently given a Prusa MK3S and after preforming a factory reset in order to solve a problem with Z axis alignment it has been printing wonderfully for the past week or so. I have had a few issues with it but most of these have been related to bed adhesion.
Yesterday I started a 6 hour print and left it alone. I arrived back at the 5 hour mark and everything was going fine. But with around 30 minutes left in the print I heard a loud banging and found the print head slamming itself into the right corner repeatedly. I cancelled the remainder of the print and found that the printer believed that the right corner was the left corner and had decided during the print to set it as its' home. I decided to redo the calibration using the wizard but during self test the head moved about a third of the way from the left to the right and then stopped saying that there is an issue with the X axis length. This is my first printer so I have very little experience. Does anyone know what is going wrong and how to solve it?
Thanks,
Ben
Best Answer by Ben Moodie:
Thanks for the replies!
I found the the problem was the lubricant on the x axis bars. After re-lubing the bars it works perfectly. I'm very glad it wasn't the bearing @3d-gussner, that looked like a very tedious process!
@diem you were right about the bed adhesion problem being related to fingerprints. My mistake! It's now printing fine.
Thanks!
RE: Prusa MK3S X Axis Error
Please check the sealing of the x-axis bearings. With a turned off printer move slowly the extruder from left to right and watch the bearing sealing and feel how "hard" it is to move it manually. Then repeat it from right to left. If one way is harder to push than the other the bearings probably are an issue.
Also double check if the x idler is moving freely and not binding.
I had a broken sealing (after few years) and first removed the sealing to see if that solved the issue, as the replacement of the bearings is quite some work. And it was, so I changed the bearings, as the sealing prevents anything to get into the bearings.
Whilst @3d-gussner may be correct there is a simpler check worth doing first.
You mention adhesion problems. If the part was lifting from the bed it may have caused a head crash severe enough to disrupt the printer as you describe. You may have todo an XYZ calibration (see manual) to reset the machine, or, sometimes, it sorts itself out without help.
The two main caues of poor adhesion are a dirty print-sheet, usually fingerprints, and a miscalibrated first layer offset. There are many threads on here covering these topics.
Cheerio,
RE: Prusa MK3S X Axis Error
Thanks for the replies!
I found the the problem was the lubricant on the x axis bars. After re-lubing the bars it works perfectly. I'm very glad it wasn't the bearing @3d-gussner, that looked like a very tedious process!
@diem you were right about the bed adhesion problem being related to fingerprints. My mistake! It's now printing fine.
Thanks!