I have been using a Greg's Wade extruder on my printer for over 3 years. I wanted to design a base mount that could work with 1515 and 2020 extrusions for delta printers. I liked Joachim Sturm's updates to the motor mount screws so I started wit his, and added a Bowed_mount hotend type and customized the Base. I'm not sure if any of the other mounts will work now. I ahve included all of the scad files you would need to customize this. I may go in and clean up the code, but not likely ;)Same as any Wades. The base is designed for 3mm x 20mm length screws. It's also designed for SMC KQ2H06-02AS Brass Push-to-Connect Tube Fitting with Sealant, Adapter, 6 mm Tube OD x 1/4" BSPT Male. Just adjust the extruder_recess_d in the Bowden_mount function to match yours.