Hello,
I own a TAZ 3 that has printed so far around 2kg of ABS. As you can see in the attachment my x-axis upper linear bearings are visibly worn off and are now creating audible and visible wobbling on any x-axis movement.
Is this normal for 3months/2kg of ABS? Should I replace them right away?
Thanks!
It looks like there is Oil residue on the bearing rod. Are you oiling the bearings?
Never 
Only whipped them clean some times.
The bearings are self lubricating, so no oiling should ever be needed, just wipe the smooth rods with a cloth. If there’s any play, loosen the bearing mounts, and slide them together a bit more, then tighten to re-secure.
I’ve replaced the linear bearings with liner ball bearings, but if you do that, you need to also replace the stock soft stainless steel with a much harder steel. However, now I have NO play whatsoever, and the only sound I hear is from the stepper motors…very quiet. I am very happy with this setup!!
This is what I ordered from Misumi:
PSFU10-500 52100 Chrome rods @ 58 HRc hardness --> http://us.misumi-ec.com/vona2/result/?Keyword=PSFU10-500
LMU10 Linear Bearings --> http://us.misumi-ec.com/vona2/result/?Keyword=LMU10
Ross
