Nema 23 Extruder mounting converter

thingiverse

This is a plate to convert a Nema 23 mount to a Nema 17 plate. It lets you install a cheap Chinese metal extruder designed for a Nema 17 onto a Nema 23 motor. You have to drill out the extruder gear with a 6mm drill and then carefully maneuver it into place, keeping in mind that the shaft is actually 6.35 millimeters in diameter. However, if you have a spring-loaded extruder, this conversion will be easy as can be. The Nema 23 motor boasts significantly more torque compared to a Nema 17. Typically, Nema 17 motors offer 10 - 50 Ncm of torque, while Nema 23 motors usually provide 1 - 5 Newton-meters (100Ncm - 500Ncm) of torque. In essence, the power delivered by a Nema 23 motor is about 10 times that of a Nema 17 motor. As I would never intentionally tell a lie, I must confess that motor slip does occur from time to time in my machine, but this usually happens only when I make rookie mistakes like trying to extrude very thin first layers while cramming the plate onto it. However, otherwise, motor slip is a non-issue for me. I recently acquired a 1.26 Nm motor from eBay at an incredible price of £16.50. To install this adapter, you will need M5 screws and bolts for the Nema 23 and M3 fasteners for the Nema 17 motor. In my case, I had to invert the nuts and bolts when installing them in order to ensure proper seating. When I printed out the adapter, I chose a fill density of only 50% as a cost-saving measure; however, ideally, a 100% infill would have been the better choice.