I had trouble printing existing Schrader valve cap models in PETG, so I designed my own. This model has some error tolerances built in so it should work better with PETG which isn't as dimensionally accurate as PLA. Print in 0.15 layer height with 0.4 nozzle. I recommend printing in PETG.
You should not print with green color filament unless your tires are filled with nitrogen.
[2024-08-27] Updated model so the top shouldn't sag down into the air valve.
The author marked this model as their own original creation.