http://makezine.com/projects/Fetch-O-Matic/#.UFFjZY1lRSk
A box with a funnel to put the ball in. It's a DIY-guide to make the launcher yourself. The mechanism is a motorised wheel.
A box with a funnel to put the ball in. It's a DIY-guide to make the launcher yourself. The mechanism is a motorised wheel.
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