HK13-UM2

This is my version of an UM2 clone. We have a couple at work, and I like them.
I designed it in OpenSCAD. I'm using 12.8mm square tubing that can be purchased
on Hobbyking.com. It uses standard Ultimaker2 sliders, print head, and 610mm belts.
I changed up the Z axis to use 2 T8 Leadscews driven by one stepper motor. I
recommend you adjust SCAD file and print the size test first to get your tolerances
for your printer. Then adjust the other SCAD files to get good parts.

WARNING! This not finished. The SCAD files are not complete, or cleaned up.
When I upload the STL's It will be ready. I'm making this for my own use, and
I wanted to share.

Right now this is my progess

https://youtu.be/se7xleir_k4

18 x Hobby King 12.8mm x 340mm square tubes SKU:450000078-0 $1.04
2 x Hobby King 12.8mm x 250mm square tubes SKU:450000075-0 $.80
2 x Hobby King 12.8mm x 400mm SKU:450000081-0 $1.27
4 x Hobby King 12.8mm x 400mm or 600mm square tubes for Z height
400mm SKU:45000008