Single Cylinder Engine Keychain with Moving Piston
Design preview. Rendered from the file, not a photo.
This model is not currently offered as a verified ready to buy print.
What it does
- Piston moves inside a single cylinder shape so you can fidget while you carry your keys
- Small engine shape clips to your keys so you always have a fidget nearby
- Made to order in the USA after you place your order
- A decorative keychain for anyone who likes engines and small moving parts
- Compact size makes it easy to hold in one hand and spin or tap
Gearheads and fidgeters like small things that move in their hands. This keychain is shaped like a single cylinder engine, with a piston inside that shifts and slides as you touch it. It clips onto your keys so you can carry a bit of engine detail wherever you go.
The design shows off the look of a real engine cylinder in miniature. The piston sits inside the cylinder body and moves on its own track, giving you something to fidget with while you wait in line or sit at your desk. It works as a display piece too, since the engine shape stands out on any keyring or bag clip.
This is a decorative keychain, not a running engine part. It is made to order in the USA once you place your order.
7.6k downloads in the maker community. That is interest in the design on the site it came from, not our sales.
What you get
- This design prints as one piece.
- Nothing else to print or buy for this to work.
What it is made of
Designs like this print well in PLA. Compare the materials.
Printed plastic is strong for its size, but it is not metal. We have not load tested this design, so we do not publish a weight rating. Keep it out of a hot car and away from open flame.
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Who made this design
Designed by Turbo_SunShine. We did not draw it.
Shared under Creative Commons, credit required. See the original design