print failure on X,Y
Hi everybody,
I have a problem with the impression of the Z-layer, they don't seem to be aligned (as if the nozzle doesn't go to the same X,Y coordinates), do you know what part of the printer can cause this problem? However, during the calibration I didn't have any problem and the printer is "perpendicular"?
thanks for reading 🙂
RE: print failure on X,Y
This looks like a belt tension issue; or perhaps a loose belt drive gear. It can also be sticky bearings from not enough lubrication.
Check the gear is properly attached and not loose on the shaft.
Flat First: Drive gears must be tightened flat-first.
1) Start with both set screws fully loosened so the pulley is free to spin on the motor shaft.
2) Align one set screw dead center with the flat on the motor shaft, slowly tighten the screw until it fully contacts the flat surface.
3) Torque the flat set screw to spec.
4) Now tighten the jam set screw, and torque it to spec.
Once tightened, never touch the flat set screw unless the jam screw is first fully loosened.
Why Flat First? Set screws have flat ends. If you tighten the jam screw first the set screw on the shaft flat doesn't fully contact the shaft, only one small edge of the screw surface is biting. Reversing torques can easily shift the shaft to a position the flat screw no longer contacts the shaft. This lets the jam screw wriggle loose. And after a while, vibration loosens the screws until the gear is free to rotate.