Yet another knob for turning axles.
This one is replacing the four broken Scope Knobs of my Tektronix TDS 220.
It has a 4.8 mm axis and my knob fit's as good as the original one.
They got old and the plastic softener is not enough anymore to withstand the strength of my fingers :)
Designed from Scratch with FreeCad.
Using a trick to get the diameters correct although printing tolerances:
3 "fingers" build up the pressure to a Plate to hold the knob in place.
Just some 30min work.
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