This adapter allows you to use the square mount of the factory mount.

Printed in PLA with 0.200mm layers. Requires 2.5mm bolts with a length not to protrude through the top of the plate and contact the Mobius. The holes are quadrants of a 12mm circle. The holes are designed as 2mm to allow threading to 2.5mm. I used an actual tap to thread the holes, but this could be accomplished with a bolt just as easily. Drill clearance holes in the plate you are mounting to for the 2.5mm bolt.