The first merged file contains only my original parts.

The second version includes additional CC Attribution models/parts to demonstrate my parts in context.

The wheels are by “lookwhatjoesymaking”: https://www.thingiverse.com/thing:418322 , CC BY 4.0
The drive model is from "risenshine092": https://sketchfab.com/3d-models/cddvd-drive-1ccab191f993433e84e3fd66778a7708 , CC BY 4.0
