Leadnut for printed linear bearing and 20mm y axis

thingiverse

I've been tinkering with leftover parts from various CNC, printer, and laser projects to expand my printer's size significantly. I've built a frame using mostly finished 1" 80/20 aluminum extrusion with brackets all around, giving me 13 inches of travel in the x, y, and z axes. I had enough OpenRail and 20mm extrusion for the X and Y but not Z, so I decided to test out printed linear bearings on the 1" 80/20 frame I had extra (http://www.thingiverse.com/thing:82248). These bearings come with an endcap for 1" 80/20, but I was planning to use 20mm extrusion and some OpenBuilds leftovers for my X axis instead. I'd also selected a motor mount design (http://www.thingiverse.com/thing:390669) that matched the printed linear bearings' features. The thing I've built - shown as the white part in the photo - attaches the linear bearings to my 20mm x-axis and puts the "leadscrew" (currently using a 5/16 threaded rod) directly behind the motor mount. It secures with four M3 screws just like the original endcap does, fitting snugly onto the bearing itself.