Dualtron cap

I lost several of these caps before I decided to design one of my own and getting them replaced whenever I need to !

I uploaded 2 designs, one with my logo and one without any logo.

The one with the logo is said to be "not watertight" in Cura but prints just fine.

It is designed to be printed in TPU to get a bit of flex and to be very tight on the nut.
I recommend using a hotgun and soften it a bit before attempting to fix it on the nut.

After it has cooled down, it is a lot harder to remove than the original and less easy to loose :)