Dimmer knob for Beechcraft 1.375" diameter
thingiverse
Textron / Beechcraft is asking $2000 for this small part. It takes about 15 minutes to print out. Do the math yourself. Someone else uploaded a slightly different version of this knob on Thingiverse. There are at least two sizes, with one being 1.375" in diameter and the other 1.9". Both have a .125" hole for mounting on the shaft of the rheostat. It's up to you and your A&P to decide if it's airworthy. But, it seems like this knob on the rheostat is an ideal example of an overproduced part.
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