What do you think of this 3-D marble cannon prototype? It’s an add-on for the GraviTrax magnetic cannon that looks like a cannon. source

This Six Shooter multi-marble launcher add-on for the GraviTrax Turntable is much more flexible than the GraviTrax Tiptube … source

How can you find the exact marble run you want to build in GraviSheet? One user asks how to find courses with GraviTrax … source

Here’s the Machine Gun prototype in action. The marble weight from above actually assists the turntable’s rotation once it starts … source

What happens when you mix Quantum Physics with GraviTrax? It couldn’t get much worse. Support my channel by joining the … source