Pulley position and belt wear
Hi all,
I've had my Core One kit built for a month now and I've been double checking everything because of sporadic major layer shifts and more recently the fan shroud falling off midprint after the screws vibrated themselves loose.
I removed the Nextruder to ensure the belts were attached evenly with the required 4-5 teeth and made sure the gantry was square and the tension within the suggested range using the onboard strobe method. During all this I noticed that there seemed to be significantly more fine black belt "dust" in the back right hand corner; after looking around it seems that the belt is sitting noticeably off center on the toothed motor pulley. I've taken a couple of pictures but without further dismantling it's hard to capture it dead on, I think the amount of visible toothed pulley is clear though.
I looked back over the kit assembly and there was no manual adjustment here, I just used the provided printed tool to act as a spacer while tightening the two grub screws onto the motor shaft so I'm not sure what could have caused this and how I go about correcting it.
RE: Pulley position and belt wear
I can't tell enough from the photos except that something seems to be skewed. There should be zero belt dust, belt wear or debris from anything rubbing, so I'd continue disassembly until the cause is found. Definitely don't continue printing. Check screw lengths and that the screws supporting other pulleys are properly supported at both ends. I'm not sure what parts can be installed reversed or "not quite right" but check against the build instructions and come at it as if you've never seen it before. Very curious what you find!