Drive shaft support Kossel delta

Supports free end of drive shaft on Kossel delta. The original version made a big difference to my prints, I thought it was worth refining to make easier to fit. The main improvement is access holes to allow an Allen key to reach the motor bolts; also separated the fixing bolts and strengthened the cross bar.

As before, I have included a FreeCAD file, so that the hole for the 16mm bearing can be adjusted to suit your printer. The cutting cylinder had a radius of 8.08 for the .stl file provide