TOY INVENTOR’S NOTEBOOK

Amazing Maker Marble Maze

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INVENTED AND DRAWN BY Bob Knetzger

In MAKE Volume 16, I showed you how to mold thermoformed plastic parts with the “Kitchen Floor Vacuum Former.” (Here’s the how-to and video on Make: Projects: makezine.com/go/vacuform.) You can use that MAKE project to make this project!

Make a form by cutting a 12" disk out of ½" plywood or particleboard. Cut a ¾" wood dowel into ¾"-long pegs. Arrange the pegs on the disk to create a marble maze obstacle course. Each vertical peg on the male form will create a ...

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