Mechanical Engineer Needed to Refine Prototype Consumer Tool (CAD + Mechanism Design)

I have a concept for a small handheld consumer tool that includes a plastic body and small metal cutting blades.

I’ve already built a rough prototype, but I don’t have the engineering/CAD experience to refine the design into something that works reliably and can be prototyped properly.

I’m looking for a mechanical engineer or product designer to help me:

Turn my concept and rough prototype into a clean 3D CAD model

Refine the mechanical function (pivot points, blade alignment, clearances, etc.)

Design the parts so they can be realistically prototyped (3D printing + laser-cut or similar metal blades)

Recommend simple, off-the-shelf components where possible (springs, fasteners, etc.)

This is a functional project — performance matters more than appearance at this stage.

I am NOT looking for:

Final manufacturing or injection molding design

Complex analysis or over-engineering

The goal is a working prototype that proves the concept.

I have a limited budget, so I’m looking to work in a phased approach (start with concept → CAD, then refine if needed).

If you have experience designing small mechanical tools or products with moving parts, that’s a big plus.