I reverse engineered this small amplifier knob for someone who needed a few for his "Peavey VTX series guitar amplifier", using the original as a reference for measurements. Maybe someone else might be interested too.
They are designed such that no support material is needed. There is sequential bridging for printing the bore.
I printed the standard one in PLA and it fits nicely over the 6mm shaft of a generic potentiometer I had laying around. However, I heard that it did not fit well on the amplifier, so I made one with a looser fit which has a wider bore (0.75mm wider). You might need to try which one works better for your printer setup or knob shaft.
CAD (SolidWorks) part included, which has both configurations.
Feel free to leave some feedback after printing.
| Peavey_VTX_series_knob.SLDPRT | 1.3MB | |
| Peavey_VTX_series_knob.stl | 1.0MB | |
| Peavey_VTX_series_knob_-_looser_fit.STL | 1.0MB |
