Improve printability by reducing acute angles
Force correct bridging in slic3r

The bridge gap should probably make the lone bridge width a clean
multiple of extrusion width.
Lessons learned from a printing
Let idler screws go all the way through if necessary
larger holes for nuts, screws, bearings
Bigger holes for carriage mounting holes
More material saving fun
Larger holes, material saving fun
Notes, more material saving
Fix bridging again
Move to 626 bearings since my 625 bearings are crap
Move calculations to variables to be reused
Snapshot of current work