@patnap71 I will try and find any files / photos I have available. (no access to my CAD computer right now) I went through a number of design revisions and updates since posting this but have not had much time to post.. Early revision of this build used Nema 23 motors and a printed mount. While I am happy with my corner pieces and belt tensioning solution, I still need to redesign a number of things before I am happy with the prototype and can move forward with this build.