Laser Cut Homopolar Motor Kit

Tell us the story of your project.: 

I love homopolar motors because they are simple and magical. The only downfall is that the battery gets hotter the longer you let the motor spin. When your motor is made from a bare copper wire, battery, and magent, it's easy to forget it's hot, and get burned. I thought it would be smart to design a light weight wood frame so it's no longer hot to touch. I added a wide base so it doesn't fall over once it gets spinning fast. Sure, the battery and magnet still get rather hot, but you are less likely to get burned now that it doesn't fall over, and is made of laser cut wood. Now you can focus on all the wonder and fun. Parental supervision recommended for the wee ones to let them know it gets hot. I have homopolar motor kits available at my blog: http://JEMTOY.com

Difficulty: 
Duration: 
Share a "Show & Tell" video.: 
https://youtu.be/AJsTSCkySXI
Collaborators: 
jayemoores
Number of Forks: 
0
Choose at least one category.: 
Tools: 
Name: 
white glue
Quantity: 
a few drops
Name: 
Wire Strippers/Cutters
Quantity: 
1
Name: 
Small screwdriver
Quantity: 
1
Materials: 
Name: 
AA Battery
Quantity or amount: 
1 or more
Boards & Kits: 
Name: 
Homopolar Motor Kit by JEMTOY.com
Quantity: 
1
Team Members: 
Team member name: 
jayemoores
What role did this person play on the project?: 
Project Lead
Public
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0
Teaser: 
Learn about simple electric motors by making a homopolar motor.
Aha! moment: 
I love sharing the excitement of homopolar motors with my students age 8-15. I wanted a working model that made the design stand stable, spin fast, and be made of a non conductive material like wood. I designed a few prototypes in Inkscape, cut them on a Glowforge laser cutter, and this is the final design that worked best.
Uh-oh! moment: 
The motor needed a wide base so that it would not fall over. Trying to balance the AA battery and magnet on its end was nuts. It's the wide base that makes this design work so well.
Show & Tell video as default: 
Creation Date: 
Wednesday, October 17, 2018 - 14:19

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