Homopolar DC Motor

About: I am robotics engineer and a teacher whose passion in life is breaking down the maths and academic jargon of programming and robotics into something that everyone can understand, primary school kids include...

Intro: Homopolar DC Motor

To understand the theory of electromagnetic motors. watch opening 3 minutes of this video

Components Used:

10 mm x 2mm circular neodymium magnets. (5pcs)

AA Battery (1pcs)

0.8mm laminated copper wire

Tools used:

Sandpaper sheet



Step 1: Trace Out the Shape of the Wire


overall 8 cm high 4 cm wide

Step 2: Fold the Wire to the Traced Out Shape

Also if necessary fold the bottom leads inwards to keep the wire wrapped around the magnet stack

Step 3: Dent the Battery Top, Sandpaper the Contact Points

Step 4: Place the Wire Rotor on the Battery and Watch the Motor Go!



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