Bargain Store Project #47 Final modification - belt tensioner

Final modification to my Bargain Store Project #47 Backscratcher Crawlerbot. I have added a belt tensioner to stop the belt slippage that was reducing the efficiency to the bot. It was such a simple mod I thought it was worth publishing for future reference.

The main components are:
2 Back Scratchers
Flower canes
CD/DVD
Electric motor
Paperclips
Polystyrene pizza tray
Cardboard

Tools
-
Hot Glue gun
Hobby knife
Hobby saw
Drill

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Generally my projects are for my grandchildren to enjoy. OK, I enjoy them too. If anybody else likes them, that is a bonus. I like to keep my work as simple and basic as possible so that it can be copied easily and improved by anybody who wants to try themselves. I recycle or repurpose items rather than buy new and when I do buy I like to keep it cheap.