Fidget spinner generator

A classic bearing spinner with coins or nuts for weight, a print-in-place spinner with the hub trapped inside, or a spinner ring that fits your finger.

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How it works

A spinner in four steps

  1. Pick the type. Bearing spinner, print-in-place spinner with no bearing, or a spinning ring.
  2. Choose the shape. Two to six arms in lobes, bars, ring, star, rounded or wing styles.
  3. Add weight. Pockets sized for bearings, hex nuts or coins, or leave the arms solid.
  4. Print and assemble. Press the bearing and weights in, or break the print-in-place hub free with a twist.
Printing it

Settings that work

Press fit

If a bearing is loose, lower the bearing fit by 0.05 mm; if it will not go in, raise it. A drop of glue fixes a loose weight.

Print-in-place

Use the default 0.4 mm gap with a 0.4 mm nozzle, no supports and no brim touching the hub, then twist firmly to free it.

Long spins

Heavy weights far from the centre spin longest. Clean the bearing of grease for a free, quiet spin.

Questions

Fidget spinners FAQ

Which bearing do I need?

A 608 skateboard bearing (22 × 8 × 7 mm) is the classic. 688 and R188 make smaller spinners.

Can I make one without a bearing?

Yes. The print-in-place spinner has a hub trapped on a V-shaped track that spins once you break it free.

What coins fit the weight pockets?

US pennies, nickels and quarters and €1 and €2 coins are built in, or enter any round weight.

How do I find my ring size?

Pick your US ring size, or measure the inside of a ring that fits and enter the diameter.

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