3rd Rail CoreXY

*UPDATE* I have retired this version and moved on to the V2. You can find it here: https://www.thingiverse.com/thing:5319298.



(TL;DR This is a coreXY conversion for the FlSun Cube, but it works for scratch build printers that use 2020 extrusion and MGN12 rails. It assumes that you have a Z axis setup that you already like.)

After a year of trying, I was never able to get my FlSun Cube to print as good as I wanted. Despite costing more, it was consistently giving me worse prints than my abused Wanhao Duplicator i3--mostly due to having very not-straight 8mm rods. Also, lets face it, the stock gantry configuration is really inefficient and weighs in at a whopping THREE POUNDS. There had to be a better way.

3rd Rail is my attempt to find that better way. I dropped the 8mm rods in favor of MGN12 rails and changed the complicated kinematic arrangement out for a more elegant CoreXY arrangement. The nice thing about the rails is that they are pretty resistant to racking, so you c