About this 3D model

This heavy duty motor coupler allow the installation of large NEMA 17 motors on the z-axis. I use the 17HS26-2304S motor from Stepperonline. Fits for the "Primo" version (F 25.0 mm) of MPCNC. No other parts need to be replaced. The difference to the original is a modified drilling pattern (34 x 34 mm) and holders for M3 nuts. Changelog V2: Size of the hexagonal sockets for the M3 nuts reduced to prevent spinning. Print instructions Print upside down with min. 60 % infill, in PTEG or ASA, no support needed.