Force of neodymium magnet inside a electromagnetic coil

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SUMMARY

The discussion focuses on designing an electric gear shifter for a motorcycle using a neodymium magnet (23mm diameter, 25mm high, N48 grade) and a coil. The user, Alastair, requires approximately 200N of force with a 10mm throw and is working with a 12V supply limited to 60 amps. Key calculations needed include the number of wire turns, current, and wire gauge for the coil, which will be positioned around the magnet to facilitate movement in both directions.

PREREQUISITES
  • Understanding of electromagnetic principles
  • Knowledge of coil design and wire gauge selection
  • Familiarity with neodymium magnet specifications
  • Basic electrical engineering concepts, including current and voltage relationships
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  • Learn about "Wire gauge selection for high current applications"
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Engineers, hobbyists, and designers interested in electric actuation systems, particularly those working on motorcycle modifications or similar electromagnetic applications.

alastairgig
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Hey guys,
Im trying to design a electric gear shiftier for a motor bike. Basically I require about 200N of force to change gear with a 10mm throw (in both directions). I would like to use a tube neodymium magnet. (23mm diameter 25mm high with a 5mm hole throw the centre with a N48 grade)
What I need help with is calculating the number of turns of wire, the current and gauge of wire of the coil. I will be using 12V supply and I am limited to 60amps current draw.
So the magnet will be placed in the middle of the 45mm long coil and the direction of current flow will be changed to make the magnet travel in one direction or the other to change up and down. The magnet will return to the centre of the coil via a recoil spring.

Any help will be greatly appropriated.
Thanks so much guys
Alastair
 
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