My 2nd Grandfather Clock marble run plays Westminster Chimes and has a working moondial! This kinetic rolling ball sculpture is … source

I’m reviewing over 70 GraviTrax add-ons from 7 Etsy shops. In this episode, I review add-ons from Coogelbahn.de. I’m Chris … source

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A GraviTrax marble run that spells out “GraviTrax Fans”, the name of the Facebook group for GraviTrax. GraviTrax App code to … source

Join Chris from The Masked Marble as he unboxes the GraviTrax Obstacle Starter Set! This marble run set that includes all kinds … source

Marble run satisfying spinner with GraviTrax. source

MicroTrax – The cutest little trax this side of the Rio Grande! Built on a single mini baseplate. Today’s MicroTrax is … THE TEXAS … source

Serious fun with the best 3D-printed Gravitrax-compatible add-ons! In this episode, we explore what may be the coolest … source

Today’s CoffeeTrax is like a well-traveled horse riding trail… it retraces its route over and over, thanks to a gravity boost from 8 … source