DO NOT USE THIS DESIGN WITH ANY KIND OF PLASTIC FILAMENT
Surly Troll / Ogre frames have vertical dropouts that are 12 mm wide. Most e-bike hub motors have an axis that is flattened at its ends and is 10 mm thick.
Fit a 12mm round to 10mm flattened axis into a 12 mm Surly dropout.
These Axles are the most common for smaller motors up to MXUS15.
This torque arm was printed with 316L stainless steel at Craftscloud on a SLM Printer.
Fits like a charm.
Attached you find the Fusion360 File - So modify it as you need/want :-)
Notes:
Professional SLM Printer 316L Stainless Steel
Category: Sport & OutdoorsThe author marked this model as their own original creation. Imported from Thingiverse.