Planetary Gear Fidget Spinner – 3D Printed Desk Toy

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A working planetary gear system you can hold. Each spinner is printed in separate pieces and carefully assembled by hand so every gear meshes and turns freely as you spin it.It is a mesmerising mechanical fidget and a quiet lesson in engineering, all in one palm-sized package. Real meshing planetary gears Printed in parts and hand assembled Smooth, quiet spin 3D printed to order in Bristol, UK For fidgeters who appreciate good engineering. Show more