2020 Aluminum Extrusion Frame Inner Corner

This part is a inner corner bracket for 2020 Al extrusion. It is meant to go with the 2020 Frame Corner found here: https://www.thingiverse.com/thing:1612368 These two parts allow one to build a very sturdy printer frame with just printed PLA parts and metric screws.

General Specs:

• Print at 40% for Strength, PLA is fine
• Layer height at 0.2mm for screw hole/countersink accuracy
• M4 Metric Screws with 2mm Countersink
• Channel slots for tight and square fit
• Each Aluminum piece is contacted by three screws in a triangular patter for max rigidity

UPDATE:
New parts here https://www.thingiverse.com/thing:4117326