About this 3D model

v4.2 :This time inspired by jwest007 Taz Z motor coupler, replacing M3 nut hole by a simple hole for M3 heatset insert.I also added some support at M6 nut hole entry for good bridging at the edge.The Freecad model is not really "clean". I'll redo it from scratch later. v4.1 :Initaly this thing is a mod of Eric's improved Z axis coupler. I reduced a litle bit the M6 nut hole. 10mm wide and 1mm smaller for height. This to be closer to the one I intend to use. I enlarged one M3 hole in order to use a nylstop nut. I kept the bridge version for the moment, that's fine for the whole M6 hole yet it's not really good for the entry. I think I'll had just one or two support for entry.I also think about removing the opposite M3 nut hole. On my side I'm working with Freecad. I provided the one I worked on. And thank you again to Eric for this coupler.