Homopolar DC Motor
![DIY Homopolar Motor](/proxy/?url=https://content.instructables.com/FJN/M84P/I8CW600U/FJNM84PI8CW600U.jpg&filename=DIY Homopolar 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
Lighter
Pliers
Trace Out the Shape of the Wire
![Screenshot 2015-04-14 12.51.37.png](/proxy/?url=https://content.instructables.com/FGB/ICC4/I8CW5U78/FGBICC4I8CW5U78.png&filename=Screenshot 2015-04-14 12.51.37.png)
Dimensions
overall 8 cm high 4 cm wide
Fold the Wire to the Traced Out Shape
![Screenshot 2015-04-14 12.53.01.png](/proxy/?url=https://content.instructables.com/FN1/EHFC/I8CW5U9O/FN1EHFCI8CW5U9O.png&filename=Screenshot 2015-04-14 12.53.01.png)
![Screenshot 2015-04-14 12.52.45.png](/proxy/?url=https://content.instructables.com/FZ0/APBM/I8CW5U7W/FZ0APBMI8CW5U7W.png&filename=Screenshot 2015-04-14 12.52.45.png)
![squaring.PNG](/proxy/?url=https://content.instructables.com/FJL/TLOI/I8CW67RA/FJLTLOII8CW67RA.png&filename=squaring.PNG)
Also if necessary fold the bottom leads inwards to keep the wire wrapped around the magnet stack
Dent the Battery Top, Sandpaper the Contact Points
![indent.PNG](/proxy/?url=https://content.instructables.com/FXI/J6U5/I8CW5UCZ/FXIJ6U5I8CW5UCZ.png&filename=indent.PNG)
![Screenshot 2015-04-14 18.03.29.png](/proxy/?url=https://content.instructables.com/F69/7P8W/I8CW68FP/F697P8WI8CW68FP.png&filename=Screenshot 2015-04-14 18.03.29.png)
Place the Wire Rotor on the Battery and Watch the Motor Go!
![Screenshot 2015-04-10 12.36.14.png](/proxy/?url=https://content.instructables.com/FZU/FD1O/I8CW5UCB/FZUFD1OI8CW5UCB.png&filename=Screenshot 2015-04-10 12.36.14.png)
![DIY Homopolar Motor](/proxy/?url=https://content.instructables.com/FS8/4UYP/I8CW690Q/FS84UYPI8CW690Q.jpg&filename=DIY Homopolar Motor)