Here is is, and it’s free!
I print pulleys in Very strong nylon. All my setup are using 3D Printed wheel pulleys and I am very happy with it so far. I have my mountainboard for a year now and I have not changed the pulleys once.
Will it only work with Trampa hubs ? Any other pulleys for different hubs you know about ?
Yes. What trucks / hubs are you talking about ? I can adapt my models