Hi there,
This is Bogdan from Romania.
I'm a mechanical engineer - specialized in the industrial robotic field, 3D designer and modeler (from time to time and some projects I could make the functional prototype too).
I'm doing product design, industrial design, reverse engineering, ideation, etc.
I have over 15 years experience working on various systems/devices across multiple industries, from concept to launch.
1 - in the first place, it will be necessary the concept - where to determine which features and how to be present/implemented into the trolley...
2 - a fully featured 3d model (design for prototyping) should be made
3 - once the 3d model approved, will be necessary to articulate a budget for prototyping
4 - the prototype should be built and tested, after which to discuss about improvements/changes/modifications/costs optimization, etc, and prepare it for mass manufacturing
we could discuss al;l the details here, step by step and the development path...
Regards
Bogdan