[analogman]

I am using FK15 support for my RF45 conversion. While assembling the Z axis, I notice that the sleeve on the FK15 support is not long enough - the nut on the ball screw interferes with the oil seal.

I tried swapping the sleeves around - no luck. Searched for others with the same problem - could not find anything.

Any suggestions?


I have attached a picture of the bearings I purchased.

[gcofieldd]

I would email Chai and get him to send you the right size sleeves or you could make your own; they are simple. If you email Chai, take a picture so he can see what you are talking about. The picture you posted does not show the problem or the sleeve.

[pippin88]

Common problem. The seals may not be pressed in far enough.

I ended up removing the seals in my blocks. I found that the seals gave the illusion of minimal play because they were touching the bearings, and in fact there was 0.1-0.2mm play between the bearings contributing to backlash.