This is NOT my design. Downloaded the STEP file from GrabCAD here:
https://grabcad.com/library/wheel-15x7-1

From there I simply converted the STEP file to STL and printed it. Used supports and printed the wheel face-up as you'd expect. Printed actually REALLY nicely for my machine. This was in moderate quality, and I'm still very pleased with it.

About us

All our 3D models contain a ZIP archive with STL files and previews.

Our collections of 3D models created by a community of 3D enthusiasts. These models are suitable for both 3D printing and CNC

With our help, you can already search for models on all popular sites on the Internet. We have various filters for a quick search. Our developers are constantly working on a user-friendly user interface. All so that you can find a 3D model to print or CNC and put it to work faster!

We really hope that you can find the 3D model you need for your work or hobby.