All the C-Beam end plates I've seen only have 2 mounting homes for the NEMA 23 motors. Are there any end plates that have 3 or 4 holes for mounting the motors?
The threaded rod plates will also work. They are available for both Nema 23 and Nema 17 steppers. (Note: the Nema 23 version will accept both sizes.)
I checked the Parts Store for Threaded Rod Plates and could find no mention of what you were talking about. Has anyone ever come up with a design utilizing the 2 mounting holes in the Top of the End Plates to Secure an Extension that provided the 2 Additional Holes?
The 2 post mount is good for 450 in oz, if you go the with a 4 post mount your going to restrict movement and/or your going to have to raise the bed or the object mounted to it Threaded Rod Plate - NEMA 23 Stepper Motor All the cad drawing are on the open builds site, find the part you want and modify it in what ever cad program you are using (the solidworks parts import into fusion 360 no issue) OpenBuilds Parts | OpenBuilds
only if we had machines that could make them , been there and done that during this rebuild, though I know I can mill that....... oh wait