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This GraviTrax Marble Launcher uses a Jumper, a Zipline, and the base of a Mixer. source

I’m reviewing over 70 GraviTrax add-ons from 7 Etsy shops. In this episode, I review add-ons from MarbleMania3D. Add to your … source

Here’s a cool vortex and ramp trick with 3D-printed GraviTrax-compatible marble run pieces. source

In GraviTrax Set vs. Set, we compare the contents of GraviTrax marble run sets. In this episode, we compare the GraviTrax Starter … source

In this video we unbox the Gravitrax Catapult expansion set. You can buy this expansion here: https://amzn.to/2uisFJl Below you … source

Welcome to lesson 11 of GraviCalc Marble Run Computers, where each week we build a working digital logic computer circuit … source

This is the Gravitrax Volcano expansion unboxing. Click here to buy the Gravitrax Vulkan expansion on Amazon.de: … source

The new GraviTrax LITE Starter Set from Ravensburger is available for sale. Here’s where you can buy it: BELGIUM: … source

In this video we unbox the Gravitrax Flex tube. You can see what’s in the box of this Gravitrax extension and we build 2 demo … source