Hi there,
This is Bogdan from Romania.
I'm a mechanical engineer - specialized in the industrial robotic field, 3D designer, industrial designer and, 3D modeler.
For some of my projects, I'm also doing the physical prototype too.
I'm doing product design, industrial design, reverse engineering, ideation, etc.
I have over 15 years of experience working on various systems/devices across multiple industries, from concept to launch.
1 - as it looks from the model (extracted from your archive) the model is not functional at all - is more like a concept, it lacks all the fixtures, holes, etc...
2 - based on the existing step file it could be redesigned (and I could make it... :) ) in a fully-featured assembly, with all the parts and their means to inter-connect, in such way you'll have ready for 3d printing parts and make the model built (and enjoying...)
For any more questions, we could chat here.
Regards
Bogdan