This is a knob spinning lever I made up in tinkercad. It has a recess for your finger and the knob hole is tapered and specific to the original (tr)uSDX knob from DL2MAN / PE1NNZ. It fits on the knob very well no need to force it down. This way you can keep your tune rate setting on the 1khz position and fast spin the knob.
I printed it flat bottom side down in PLA+. Use just about whatever settings you want for infill and resolution. No supports or rafts or brims needed.
Also see the desktop stand I designed for the (tr)uSDX.
Enjoy and 73 de W5AUG
The author marked this model as their own original creation.