These are used to connect two or more Festool Guide Rails together.

I used M3x6x5mm threaded inserts melted into the final rail to mimic the screw holes in Festool's connectors.

These were printed diagonally on my printer to maximize the length. I've included the parameterized Fusion 360 file for those who have smaller print beds and need to adjust the length.

Printed with PLA and 100% infill.