This is the piece you need to go in between a M4 extruder and Min's frame - no parts are modified from either project.
The M4 is designed to normally mount to a 2020 extrusion frame with M5x10 screws and T-nuts - this bracket just replaces the T-nuts with hex-nuts. The bracket mounts to the frame in the stock position using a pair of M3x22 or M3x25 screws. There is also a slot for a ziptie in the back to keep the motor wiring tidy.
After printing, use the M5 screws to suck the nuts fully into the pockets before doing anything else - they are tight by design, and get tighter the deeper the nut gets so hopefully don't fall out once in place.
The author marked this model as their own original creation.