ProjectMix I/O Encoder + Preamp Knobs

I designed these encoder and preamp knobs in Fusion 360 to replace my aging knobs that have started going brown, which is a common issue with grey ABS plastics over time. They are a perfect fit replacement for the M-Audio ProjectMix I/O preamp/encoder/headphone/master volume knobs, but should fit most 6mm D-shaft encoders. Note: The preamp knobs have a 2.5mm extended shaft that goes through the hole around the preamp shaft on the control surface for stability and dust protection. The encoder kno