Mini electromagnet for fischertechnik

I used the 12V variant which nominally can lift 0.3 kg. It works fine with the ft-typical 9V to lift a metal ft marble, but gets a bit hot after a while.

Needs an additional M2 screw, ca. 7-8 mm, and two 9.5 mm "Bundhülsen". No soldering needed.

Print the larger part as provided with support touching buildplate, the smaller part prints fine without it.

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