Functional Mechanical Prototype Build
Budget: $3,000 – $5,000 USD
I need a hands-on partner to turn my concept into a tangible, working prototype. The job is strictly physical—no digital mock-ups—because the whole point is to test real-world functionality. At this stage I only care about how the mechanism moves, aligns, and withstands repeated actuation, so your focus will be on clean, reliable mechanical movements rather than appearance.
Here’s the flow I have in mind: once I share the CAD files and basic bill of materials, you’ll review them, suggest any quick manufacturability tweaks, then machine or 3-D print the parts, assemble, and run a limited cycle test. I’d like short video clips of each motion path and a written note of any binding, tolerance issues, or unexpected wear you observe. If a revision is needed, we can iterate, but the first build should already be robust enough for functional testing.
Deliverables
• Fully assembled physical prototype, ready for shipment
• Two short test videos highlighting each mechanical movement
• Brief test report outlining fit, smoothness, and any failure points
Acceptance criteria
– All intended movements operate smoothly without manual adjustment
– No critical fastener loosening or fracture after a minimum 25-cycle bench test
– Dimensions stay within ±0.2 mm of the CAD specification in key joints
If you have an in-house lathe, mill, or reliable additive setup and enjoy solving practical mechanical challenges, I’m eager to collaborate and get this prototype moving.
Here’s the flow I have in mind: once I share the CAD files and basic bill of materials, you’ll review them, suggest any quick manufacturability tweaks, then machine or 3-D print the parts, assemble, and run a limited cycle test. I’d like short video clips of each motion path and a written note of any binding, tolerance issues, or unexpected wear you observe. If a revision is needed, we can iterate, but the first build should already be robust enough for functional testing.
Deliverables
• Fully assembled physical prototype, ready for shipment
• Two short test videos highlighting each mechanical movement
• Brief test report outlining fit, smoothness, and any failure points
Acceptance criteria
– All intended movements operate smoothly without manual adjustment
– No critical fastener loosening or fracture after a minimum 25-cycle bench test
– Dimensions stay within ±0.2 mm of the CAD specification in key joints
If you have an in-house lathe, mill, or reliable additive setup and enjoy solving practical mechanical challenges, I’m eager to collaborate and get this prototype moving.
Related categories:
CAD/CAM
Manufacturing
Mechanical Engineering
Assembly
3D Printing
Rapid Prototyping
Prototyping
Mechanical Design