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  • Users: Franko314
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  1. Franko314

    Need an Electro-Magnet, 3Volts, 0.1Watts, 200 grams or more pick up and holding

    Anyone know if I can buy one with the above specs. I am designing something that has to run on batteries that should last more than 2 years ideally a lot more. The electro Magnet in energized for 5 seconds, 40 times per day. a AA Lithium Ion battery has 1600mAh of stored energy. I would need 2...
  2. Franko314

    Raising/opening a wooden toy chest door using Torsion springs or constant force springs

    My apologies since I am an EE trying solve a mech problem which I thought was easy and it's not. And it has definitely been decades since MECH 230 at NJIT. The toy chest door/lid is a rectangle of 14" x 18.5" and weights 1.67Kg The axis/hinge is a threaded rod 10mm in diameter. I attached a...

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