Loud grinding noise
I can't figure out where this is coming from.
Has anyone heard a sound similar to this?
I bought this printer used, so I'm not sure what it should sound like but this sound doesn't seem normal.
Could this be a bad y stepper motor?
I've checked my belts, both are sitting around 260.I've cleaned the rods and added a small amount of grease. I've checked the screws all seem okay.
It's almost like a grinding/rattle when the printer is moving fast
It sounds like your nozzle is scraping against the fill. To check: if you change the fill-type the noise will change.
Some fills (eg grid) have highpoints where the extrusions cross and are only suitable for low densities; others (eg cubic) do not and are better at high density.
Cheerio,
RE:
It seems like the nozzle is vibrating on the bed? When I apply pressure to any part of the sound goes away....
You may have a lose or wrongly tightened Y carriage mount - or U bolt on older machines.
See from step 24 on: https://help.prusa3d.com/guide/2-y-axis-assembly_25488
Cheerio,