Lucky Extruder (Proper) Multi-Color

I have re-mixed Kwaad2's original for multi-material. In the process, I have also set the clearances to a more proper **0.1mm** - IMHO a zero clearance fit really isn't the right way to calibrate your extruder.

This part makes an **excellent** calibration part for the Palette 2. If you have your eSteps set correctly and your extrusion multiplier correct, this part should print and calibrate the Palette well. If the parts don't fit together without forcing, you are either over-extruding o