This design is intended to provide for improved precision while adjusting the fan and power settings of the Fresh Roast SR800 and SR540. It is a simple press-on replacement for the original knob that is shipped with the roaster.
It fits a standard EC11 switch/encoder with 15mm shaft. If the print is loose on the shaft, try adding some scotch tape to the shaft.
Note: Print WITHOUT supports (removing them could be tricky, leaving remnants that would interfere with the fit.) I printed with PETG.
Updated Jan 5, 2025: Increased clearance to the shaft base, to avoid interference during the push-button travel.
The author marked this model as their own original creation.