Wheel 

This part is printed in grey PLA for a metallic look and to avoid stringing.

Glue a magnet to the back of the wheel to mount it to the extruder steppermotor axle.

Hamster

To move the weight of the hamster to the back, print with 100% infill near the back legs. The Hamster 3mf file has an infill modifier with these settings.

I used white PETG for the hamster body and acrylic paint to give the hamster some color, other filament materials and sharpies will work too.

General notes 

No support material is needed for the wheel and hamster.

It's surprisingly fun to see the little pet moving around in the wheel while printing.

For a video of the hamster in action, check out:
[https://schetsblok.nl/mp4/HamsterPowered3Dprinter.mp4](https://schetsblok.nl/mp4/HamsterPowered3Dprinter.mp4) (video file)
or
[https://schetsblok.nl/mp4/HamsterPowered3Dprinter.gif](https://schetsblok.nl/mp4/HamsterPowered3Dprinter.gif) (animated gif)