Marble run tracks and tricks that mount onto any magnetic surface. I designed these with my kids as a project during the coronavirus lockdown.

Make it your own by deciding which parts to print or even customizing the source openscad files, which can be found at github.com/jhpieper/marble-run.

See it in action: https://youtu.be/W0yioqEhmZE

Changelog

8/3/2020: Initial upload -- 42 STL files.
9/8/2020: Added the Auto-Launcher.

Materials

This marble run works with regular glass marbles that measure 5/8" (16mm).

All tracks are designed for round 10mm x 2mm magnets.
They can easily be ordered from Amazon and other retailers.

The Tracks

• Straight: Just a straight run. Available in many lengths from 50mm to 200mm.
• The Wave: This track makes things a bit more interesting. Print with supports.
• Curve: A 90 degree curved piece. Great to catch a falling ball and getting it onto the next track.
• The Tunnel: A straight pipe that hides the ball. Available in multiple lengths.
• The Drop: A classic way to drop the ball onto the next track.
• Lombard Street: A San Francisco landmark for your marble. Print with supports.
• The Wheel: Spins as the ball goes past. Get creative and use it to launch another ball that is stored in the wheel. Or kick a ball placed on a track above into action.
  Available in various sizes and blade counts. Some assembly required: wheel-<-size>- + wheel-base + lock-. Customize the look by using different colors for the parts.
• The Pole: Catch a ball and vault it to the next track.
  Assemble pole-<left|right> + pole-base + lock-
  Customize the look by using different colors for the parts.
• The Whirlpool! The ball goes in circles until it drops through the center. Mount level for best effect.
• The Looping: This one is tricky! Mount it at the correct angle, extend the incoming ramp and the marble will successfully perform a looping.
• Funnel: It's a funnel.
• Auto-Launcher: Releases one marble every couple of seconds. See it on YouTube. Assemble auto-launcher + pole-base + lock-
• Flipflop: The flipflop diverts the marble left or right. Assemble flipflop + flipflop-base + lock-
• Tray: The tray is a great way to finish the run and to store extra marbles.