The Infinite Knot is our speediest and most satisfying marble looper yet! And ANYONE can make it whirl!

Now in 16mm (standard marble) 12mm, and MICRO LOOPER size! The cutest loopers yet use a 6mm ball bearing and print in under 40 minutes.

TO SIZE TRACK TO YOUR MARBLES:

1. PRINT TEST PIECE !!! (in project & stl) before the full model. For a 16mm marble, print the 16mm test piece. New filament? New test piece.

2. YOUR MARBLE should easily click into the top of the test track, then FALL FREELY through the marble path! Watch your toes.

3. If test is tight (marble stuck!) or too loose (no snap in) - scale the test piece UP OR DOWN BY 1-2% until you're happy. Matching the re-scale WITH FULL MODEL for final print!

HOW DO YOU START IT? Make fast circular motion as seen in gif above, varying speed until it just keeps on going!

IF you can, find a steel ball bearing of same size, which roll the fastest and smoothest with a nice sound.

The Infinite Knot - and many more fun fidgets on our profile!!!

Happy printing, Spooligans!