Piston Keychain (various sizes)

Piston Keychain

This is a piston-shaped keychain designed for everyday use or as a fun gift for car and engineering enthusiasts. The model is available in three sizes: Small, Medium, and Large.
The one shown in the pictures is the Small version.

For best results, the printing temperature was lowered to 210°C in order to reduce stringing during the print.

The piston pin should normally stay in place, but if it happens to come loose, it can be easily secured with a small amount of glue.

Simple, practical, and great for anyone who wants to carry a little piece of mechanical style on their keys.