Create an Adorable Robot Out of a Ruler & Comb

Create an Adorable Robot Out of a Ruler & Comb

Joelle Alcaidinho
Jan 12, 2011

We love fun little projects that use items we have around the house. Instead of tossing that broken comb, why not use it to make a rather adorable little robot friend? Brush up on your DIY skills and have fun upcycling existing items to create this Simple Bot: Inchworm.

Dubbed the Inchworm since one of the primary components is a ruler, this cute bot by Instructables user Randy Sarafan, author of '62 Projects to Make with a Dead Computer', is a simple and fun project. The little robot 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 forth. Since one side is weighted down with the batteries, it has more forward momentum in one particular direction. Simple to make and simple to use.

To make this Simple Bot you will also need in addition to the comb and at least an 18" long aluminum ruler: 2 small Tupperware containers, a Bic Classic pen, small nuts, washers, and bolts, zipties, and AA batteries. Only simple soldering is required making this a good project for those looking to get started with basic electronics.

Thanks to the simplicity of this project we think it would be great to build with some of our younger friends in the primary school set. Every time we see a simple robot on a desk we cannot resist picking it up and playing with it and we are sure that the Inchworm would not be an exception to this. This robot would also make a neat and original gift, perfect for the math and science set.

Check out the post on Instructables, for the easy to follow instructions.

For some more DIY robot fun, check out these posts:

(Image: Instructables User Randy Sarafan licensed for use under Creative Commons)

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