RC plane collet adapter, M6 output (3 to 4 mm motors): prop hub dimensions
The fit dimensions PropShaper uses for drone and RC propellers on this mount, with the sources behind them. Open it in the studio to design a propeller around this hub and export an STL for printing.
Dimensions
| Shaft bore | ø6.1 mm |
| Hub body | ø15 mm × 10 mm long |
Source quality: Maker spec or retailer listing.
Fit notes
Collet adapters for 3.0, 3.17 and 4 mm motor shafts present an M6×1 stud: prop bore 6, hub no taller than about 10.5 mm, backplate ø15.5 (Innov8tive Designs). Some 5 mm collets are M6 too (Scorpion).
Sources
Every dimension stays editable in the studio, so you can adjust the bore or add a set screw to match your own hardware. Printed props are prototypes: check the fit on the bench and spin them up behind a guard.