RCA Tuner Spline to Frequency Knob

thingiverse

I was moving my antique RCA radio one day and I grabbed it by the frequency knob which being very old it snapped off. So I re-created the part and now it works and is as good as new :) Print it with 100% infill, fat cylinder down with supports, you will need to drill out the centre with small to large bits until it fits the radio's spline comfortably.