Mechanical Engineer Needed for Fitness Equipment Design (Rotational Resistance System CAD+ Prototype

Project Overview:

I am developing a new commercial-grade rotational resistance fitness machine (COREX concept) designed for athletic performance, core training, and rehabilitation.

This is not a simple CAD drawing project—I am looking for a mechanical engineer who can help bring this concept to life from early-stage design through manufacturing-ready outputs.

Scope of Work:

Develop a 3D CAD model of the product (Fusion 360, SolidWorks, or similar)

Engineer the rotational resistance system (smooth, controlled, adjustable resistance)

Design for durability, safety, and commercial use

Create adjustable components for different user heights

Optimize for cost-efficient manufacturing (COGS awareness)

Provide:

3D assembly files

Exploded views

2D engineering drawings

Bill of Materials (BOM)

STEP files for manufacturing

About the Product Concept:

The system is a standing rotational training device that allows users to generate controlled torque through the torso while maintaining lower-body stability.

Key features include:

Circular or ring-based rotational path

Adjustable resistance (magnetic or mechanical preferred)

Smooth, consistent motion (no jerky movement)

Commercial-grade durability

Compact footprint

Sleek, modern design (inspired by high-end fitness equipment)

Ideal Candidate:

Mechanical engineer (not just CAD designer)

Experience with:

Fitness equipment OR

Rotational/mechanical systems OR

Resistance mechanisms

Strong understanding of real-world manufacturing

Ability to recommend materials and improve design

Experience designing for prototype → production

Project Phases:

This project will be completed in phases:

Phase 1: Concept CAD + movement validation

Phase 2: Refined design + adjustments

Phase 3: Manufacturing-ready drawings + BOM

Important Notes:

NDA required before sharing full concept details

I will provide reference images, sketches, and a detailed spec sheet

Looking for someone who can collaborate and improve the design—not just execute

To Apply:

Please include:

Examples of similar mechanical or product design work

What CAD software you use

Any experience with resistance systems or fitness equipment

Brief thoughts on how you would approach this project