So my 3D printer uses two 10mm rods for the X axis with LM10UU bearings inside the toolhead carriage.
The regular metal bearings are quite noisy and have nasty resonance effects at 40mm/s speeds. They also have a lot of wiggle room.
In an attempt to solve this I bought the plastic variant which has no moving parts and just slides over the rod. They are too tight however and my printer struggles with moving in the X direction.
Does anyone have experience with these? I assume the plastic ones wear out over time so the friction should go down.
HootinNHollerin@lemmy.dbzer0.com 3 weeks ago
Igus has tubs of high quality plastic linear bearings and selection guides, etc. I’ve also got versions they didn’t have in their site by talking to a rep, like tighter tolerance for a specific bearing. Used them across many mechanism and products I’ve designed.
Rolive@discuss.tchncs.de 3 weeks ago
Right. I’m sort of a cheapass so I ordered them via Aliexpress. Next time I will get the proper ones.
I did however find out that the metal bearings, despite the play in them, did not cause the resonances. Ever since I rebuilt the printer to a CoreXY machine some speeds were off-limits. Which is fine I guess but mildly annoying and I want to get it solved at some point.