clock with magic / magnetic hour hand
thingiverse
A watch with a normal minute hand and a magic hour hand, which is magnetically driven. 1 or 2 magnets are needed: Ø6 x 1.5mm and if you take the printed ball then still Ø3 x 3mm. A movement with a short shaft is required. The total shaft length is 12 mm and the thread length is 5-6 mm. The magnet Ø3 is pressed into the ball, the one with Ø6 into the hour hand driver. Instead of the self-printed ball, a steel ball with max. Ø8 can also be used. I personally like it with the red ball. Check out the other version too - https://www.thingiverse.com/thing:5384209
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