Coupling for 3D printer Aluminum make

thingiverse

I designed this coupling for a 3D printer from a single piece, so if you need to make any adjustments, there's a solid component available. The holes are pre-drilled with M4 threading, allowing you to cut your own threads as needed. From the stepper motor, I've included a hole that measures 5mm in diameter. For the threaded rod, the hole is a generous 8mm wide.