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Rotary Knob (M3 bolt and nut)

Rotary Knob (M3 bolt and nut)

thingiverse

Rotary handle/knob for turning my telescope mount (Skywatcher Mount EQ3-2). Insert M3 bolt (12 mm should be a good length) and a M3 nut in the opening, so the knob can be screwed on the axis pin.

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