Summary

Based on the carriage adapter designed by Cyrrus.

This version fits the Prusa i3 rework x carriage.

Configurable OpenSCAD file included.

Instructions

Print the final-mount.stl file or customize the adapter.scad file to create a custom version (for different screw lengths or distance between screws).

Can be printed without supports. I used 30% infill and 5 perimeters to give it strength.

You'll need to fit 4 M3 nuts (nyloc preferably) at the top of the screw holes. I got them in by first placing longs screws through the holes, screwing the nuts a little and then pulling the screws by the head from the back.

Optional fan mount and bed probing servo can be found in the original design by Cyrrus.

Prusa i3 (rework) X Carriage Adapter for Bulldog Extruder