Prusa i3 MK3 calibration failure [SOLVED]

I was having Y Axis repeating failures. I, too, cleaned the Y axis guides with a paper towel, then covered everything up and sprayed silicone lubrication on the guides. Wiped them lightly to clear off the excess and my printer passed the first time after. Thank guys!

I had the same issue, and after loosening the the belts a bit, the problem was stil there making that sound. However, I found that the problem was my rails were too dirty and scratched up, so adding some petroleum jelly or vaseline on them and rubbing the linear bearings helped. Now is printing perfectly. Good video.

I was having the exact problem, adjusted the gear on the Y Axis motor and it works fine now.

TL;DR: My Y axis was a bit skewed. I fixed this problem by loosening the screw on the Y motor and moving the tooth-wheel just a bit to the right. Then the heated bed started to move way more lightly. It took me several hours to identify the problem. The hint was that autohoming never really worked on the Y axis. Don't know why the self-test worked OK but calibration always failed as the firmware thought the endstop has been reached due to increased friction I guess.

Had issues with my X axis after not using my printer for some time. After troubleshooting many many things, it turns out that adding grease to the linear guide rods solved the issue!. Too much friction caused the motor to detect collision and failing calibration.

I was having this problem gave my prusa a few “love taps” and now the xyz error is gone I’m very mad bc now I don’t know what the issue was

Tightening the M3x10 screw and moving the GT2-16 pulley will solve the problem. Sep 2019

Very interesting place to use 3D printer. :)

I had the X-Axis Error, I fixed mine by Tightening the X-Axis belt and loosening the Zip-Ties the held in the bearings.

I’m having a self test error y axis length, it will move the bed all the way forward no problem, then all the way back and then the belt starts to skip and grind... seems like the sensor expects the Y axis to be longer?.... but if I run XYZ calibration alone, no problems... I have about 2 hours of experience in this field lol. But my first thought was weak tension.... but now idk. I’m currently printing the Triceratops Skull... no major issues that I can see(but I also don’t know exactly what I should be looking for either).

At 16:18, what is that noise? Mine is making that, not sure what to do

It's reacting like a goat.

I AM TRYING TO FIX THIS PLOBLEM TOO

I have the same problem right now

me too

This is driving me crazy for weeks now, i cannot pass the 4th bed calibration point. Self test ok Z calibration ok Belt test ok Auto home ok Xyz calibration failed. I tried everything: 1. Factory reset. 2. Update correct firmware. 3. Tightened and loosened belts, not too much. 4. Made sure the extruder have clearance and not hitting anything. 5.Lubricate rods and bearings. 6.checked the hotend is correctly mounted on extruder. 7. Pinda probe replaced, and adjusted. 8. All bearings is replaced. 9. Xyz calibration without paper on heatbed.