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Dino writes –

Hi MAKE! I built this for fun and to see just how simple and cheap I could do it. All of the parts came from the hardware store and a thrift store where I found the flatbed scanner and toys to hack for parts. The whole project costs about $20 to make. The electronics are simple. 2 relays and three microswitches and a drive motor. The schematic is here… I plan on adding a treat/reward module that would deliver a treat right after the ball is dropped in the chute. That way the dog catches on to how it all is supposed to work. Lots of fun! I hope to see more of these from people like me! Go Make It! ARF!

Phillip Torrone

Editor at large – Make magazine. Creative director – Adafruit Industries, contributing editor – Popular Science. Previously: Founded – Hack-a-Day, how-to editor – Engadget, Director of product development – Fallon Worldwide, Technology Director – Braincraft.

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