Z axis moves while printing (not layer changes)?
I am printing a large square object on my C1+ that takes up a lot of the print area. I just noticed that when the print head moves from the back side of the bed to the front side (along the Y axis) the Z level raises and lowers a mm or two as it moves front to back. Specifically, it lowers about a MM or two when it moves to the front (door side) of the bed, and then raises back up the same amount as it heads back to the rear. About 1/4 turn of the Z axis screws. I never noticed this before I guess because I don't typically print very large Y axis objects. I am printing the same object on my Bambu X2D and that bed isn't moving other then at layer changes.
Any idea why my C1 would do this?
The bed-levelling at the start of the print maps the required Z offset and the early layers adjust height and extrusion to compensate until the upper layers can be extruded completely level. It means your print sheet isn't perfectly flat (none are) and the printer is taking care of it.
Cheerio,
RE: Z axis moves while printing (not layer changes)?
Interesting. I would have thought auto-homing would set the bed at the limit of its travel, essentially leveling it. But I guess not. I wonder if I made that 1/4 turn of the left and right forward Z screws manually while the printer is off, would that "level" it?
The bed-levelling at the start of the print maps the required Z offset and the early layers adjust height and extrusion to compensate until the upper layers can be extruded completely level. It means your print sheet isn't perfectly flat (none are) and the printer is taking care of it.
Cheerio,
RE: Z axis moves while printing (not layer changes)?
Is this z-hop?
RE: Z axis moves while printing (not layer changes)?
I think z-hop is only applicable when travelling, not while extruding. This happens while its extruding along the Y axis.
Is this z-hop?
RE: Z axis moves while printing (not layer changes)?
Interesting. I would have thought auto-homing would set the bed at the limit of its travel, essentially leveling it. But I guess not. I wonder if I made that 1/4 turn of the left and right forward Z screws manually while the printer is off, would that "level" it?
Connect a USB-C cable between your printer and PC/laptop, download this: Prusa Slicer Filament-Edition then go to the Calibration menu and run Bed Mesh -> Probe Bed.
