About this 3D model
This holder is made for the installation on 20x20 Aluminium Profiles. It has mounting holes for Ball Bearings 608 and a Nema 17 Stepper. Inbetween a coupling can be installed. More: https://www.youtube.com/watch?v=y_Zl_7EczHg&feature=youtu.be and: https://www.multec.de/-Multirap-M300-Pro