X Carve V Wheel Cover V2
More compact, with better clearance of the X axis version of http://www.thingiverse.com/thing:997762 Dust Cover
Added rail wiper holders that you can put the wiper material of choice into. I have tried cotton balls, felt, old terry cloth wash rag and all seem to work fine. Cotton ball worked the best but was a mess getting into the holder and keeping it in. (it wanted to fall apart to much). The holder just clips onto the cover or can be glued in place.