Basically, it works by reversing the direction of the motor each time the comb hits the switch, which, in turn, forces its "feet" to slide back and fo...
Step 9: Modify your comb
Use diagonal cutters to remove two inches worth of teeth from one side of your comb. However, I found it is beneficial to leave a few teeth on right at the edge. Later on, these few extra teeth will help act as a safe guard to keep the comb on track.
When you are done removing teeth, sand that section of the comb smooth.
Bio:My name is Randy and I run the Instructables Design Studio. I'm also the author of the books 'Simple Bots,' and '62 Projects to Make with a Dead Computer'. Since I am always making new things, subscri...read more »