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Qwerkbot battery retainer brackets

Tired of the battery falling out whenever you pick up your Qwerkbot? Make a pair of battery retainer brackets out of metal (as shown), plastic, or even cardboard, and use size 4-40 “thumb nuts” to fasten them down. You can purchase the nuts from McMaster-Carr. They are shaped for quick installation/removal, making it easy to change batteries.

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