Initial build - Lubrication?
Finished a kit build of the MK3S over the weekend. It was fun and all is working. I didn't see anything about lubrication after the initial build, but I may have missed something. Is that necessary?
RE: Initial build - Lubrication?
Yes. The bearings ship only with shipping oil which is not a good lubricant; it's only meant to keep out rust.
PR maintains the bearings are pre-lubricated, but if you search here, you will find many posts on the correct lubricants to use and how to pack the bearings with it.
RE: Initial build - Lubrication?
Finished a kit build of the MK3S over the weekend. It was fun and all is working. I didn't see anything about lubrication after the initial build, but I may have missed something. Is that necessary?
Search around for recommendations for lubricating the linear bearings. Unfortunately, it's an assembly step that is often overlooked.
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He is intelligent, but not experienced. His pattern indicates two dimensional thinking. -- Spock in Star Trek: The Wrath of Khan
RE: Initial build - Lubrication?
Best advice is to pack the bearings with grease prior to assembly. Lithium based (Lith-Eese, Lubriplate, etc.), or synthetic base (Superlube) are acceptable.
RE: Initial build - Lubrication?
Thanks. Is there a guide to do this after assembly? I’m wondering how much I would need to take apart.
RE: Initial build - Lubrication?
No guides, just brute force ... You can get by with oiling the rods and working the axes back and forth once in a while. Or try applying grease and doing the same, but the grease seals work fairly well...
RE: Initial build - Lubrication?
Honestly, once you free the rods, removing the bearings is not bad.
Only one that takes a little digging is Y.
RE: Initial build - Lubrication?
You should have a look at this post : https://forum.prusa3d.com/forum/original-prusa-i3-mk3s-mk3-hardware-firmware-and-software-help/replacing-bearings-on-x-axis-what-tips-and-tricks-should-i-know/