Setup Error on X Axis Length
I just assembled my MK3 this weekend. When I run the setup for the first time I am getting a x axis length error. I checked the cable management but do not see it touching anything on the left or right side. But the Extruder does touch the frame on the right side at the start of the self test. Is this correct operation?.
Extruder goes to the left stops reverses and then go to the right. It is stopping about 1 cm to the right edge of the x axis and returning.
Do you have any suggestions on resolving this issue?
Best Answer by Steve:
Neal, other, far more experienced people will likely weigh in but the common causes of this problem are belts too tight or bearings not aligned, over tightened or insufficiently lubricated sufficiently.
With the power off move the x-axis from side to side. Other than motor resistance it should move freely. My suspicion is that you will feel it "binding" as it approaches one or both sides.
The belts should be carefully tightened per the instructions and should essentially just be tight enough to eliminate the "droop" from gravity.
Once you have the belt tension correct, if the carriage does not still move freely, try loosening the screws that hold the cover over the x-axis bearings slightly.
The software is triggered for end of axis by the stepper drivers sensing a motor stall when the end of travel is reached. For obvious reasons this does not require a great deal of resistance so anything interfering with the smooth motion of the axes will cause false "positive" results.
Hope this is of some help,
Steve
RE: Setup Error on X Axis Length
Neal, other, far more experienced people will likely weigh in but the common causes of this problem are belts too tight or bearings not aligned, over tightened or insufficiently lubricated sufficiently.
With the power off move the x-axis from side to side. Other than motor resistance it should move freely. My suspicion is that you will feel it "binding" as it approaches one or both sides.
The belts should be carefully tightened per the instructions and should essentially just be tight enough to eliminate the "droop" from gravity.
Once you have the belt tension correct, if the carriage does not still move freely, try loosening the screws that hold the cover over the x-axis bearings slightly.
The software is triggered for end of axis by the stepper drivers sensing a motor stall when the end of travel is reached. For obvious reasons this does not require a great deal of resistance so anything interfering with the smooth motion of the axes will cause false "positive" results.
Hope this is of some help,
Steve
RE: Setup Error on X Axis Length
Sounds like what I would have said...
RE: Setup Error on X Axis Length
Thanks Steve and Robert!
I think you are on the right track.
I was noticing the carriage stopping 1 cm exactly on the right side. I thing is messed up the wire management ( The manual warned me!). I did not pass the peta probe and right fan wire though extruder wire management. Penta probe is hitting frame on right side. I’ll rewire and see if it fixes my issue.
Again Thanks. I’ll update you after I rework it.
//Neal
RE: Setup Error on X Axis Length
Guys,
I re-routed the cable Penta Probe Cable and Fan and I'm off printing my first Benchy.
Thank You.
RE: Setup Error on X Axis Length
Neal,
That's awesome, glad to help. I used the heck out of the online assembly manual when putting my kit together. I found the combination of large, high resolution pictures and comments from other builders to be an invaluable resource. I am glad your problem was so simple to resolve.
Happy printing!
Steve