X-axis homing failed - collission detected every other print
Had issues immediately after assembly, calibration failed, x homing. After hours of troubleshooting with Prusa, suddenly worked, could finally print, out of the blue, didn't change anything. Thought I was out of the woods. First print was successful. But every other print, the x-axis homing fails, collision detected. I print a small part to test, flawless, works perfectly. I try to print again immediately after, same print, same settings, x-axis homing fails immediately. Shut down the printer, try again after a few hours, pattern repeats. first print works, the other can't home x and says it detects a collision.
I am baffled and so is Prusa, escalated to engineers/devs, waiting to hear back
Has anyone else had these issues?
Best Answer by paddys_pub:
After lots of troubleshooting with Prusa, we found out that it was the X-Idler pin, hand to take off the x-axis, re-set the pin and make sure it stays locked in by pulling tight on the belt before reassembly. no issues since!
RE: X-axis homing failed - collission detected every other print
Adding photos for reference
RE: X-axis homing failed - collission detected every other print
any fix Im getting this all the time
RE:
I'm also getting this, intermittently at first and now consistently. I also got a Y-axis fail during homing at some point, but that didn't reappear. I would suspect a homing-switch problem, but I don't see any on the machine.
I checked the motor connection to the Buddy board and the belt tension seems okay. I can't see the area where the set-screw would land on the pulley flat-spot, but I don't think the pulley is slipping, just watching both pulley and belt as the machine repeatedly bangs itself into the left x-axis stop.
edit: I take it back, I can see the pulley set screws - they seem fine, too.
RE: X-axis homing failed - collission detected every other print
i reset my machine back to factory and restarted it its been fine i still think its a software problem
RE: X-axis homing failed - collission detected every other print
After lots of troubleshooting with Prusa, we found out that it was the X-Idler pin, hand to take off the x-axis, re-set the pin and make sure it stays locked in by pulling tight on the belt before reassembly. no issues since!
RE: X-axis homing failed - collission detected every other print
For me, the problem seems to have been solved by updating to alpha firmware 5.1.0. I haven't done a print yet, but I can now auto-home just fine, with no changes to belt tensions or resetting the x-idler pin.