This is my reaction to the new GraviTrax Power trailer! The trailer shows the new POWER series elements soon to be released for … source

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

3D print these Binary (Base 2) Place Value Landing Pad Inserts to build your own Binary Marble Computers using the GraviTrax … source

Build working computers out of marble runs! Build a new digital logic circuit each week using the GraviTrax marble run system. source

Join Chris from The Masked Marble as he unboxes the GraviTrax XXL Starter Set! This marble run set that includes almost double … source

Mini baseplates for Gravitrax? They are in the GraviTrax Lite Starter Set. But did you know you can make your own? This video … source

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GraviTrax marble run on a wall – pretty cool! source

This weekend’s tip for the GraviTrax Spiral extension keeps the top of your spiral from coming off when the marble drops into it. source

This is part of my 21 minute GraviTrax marble run. I call it the Tower of Power! It includes 2 marble-activated spinners! source