Valve cap originally designed for a 2025 Toyota Corolla, but is compatible with Schrader valves on bicycles and cars.

Prusa

I3 MK3S

No

No

0.1 (for clean threads)

80

I used 95A TPU, which provides sufficient harness and grip, ensuring proper engagement with the valve stem. Plastics could work but this particular design was optimized for hard TPU.

After printing, ensure that there is no stringing/blobbing around the thread area. Threads must be extremely clean to fit properly on the valve stem. Use a layer height of 0.1 mm to ensure maximum detail on the threads.