Print with support, 75-100% infill.The "Motor Mount 2" is made for Countersunk screws."Motor mount 2-2" is made for standard M3 screws (non-countersunk) - The base for the motor has been made a bit thicker to hold up when tightening stuff together.Designed in Autodesk Fusion 360.Item on pictures is the first revision, so some small cosmetic changes has been made since.Shown with the MK9 Bowden extruder by Martin-RepRapMe: http://www.thingiverse.com/thing:784247Comments and tips for improvement is welcome!