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$
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I will do 3d mechanical design and cad modeling for manufacturing
Beth Chen
About this gig
Looking for production-ready 3D models and engineering drawings that factories can manufacture directly?
We are a co-founder team based in China. My partner is the engineer (10+ years in robotics & medical devices), I handle sourcing and production.
What You'll Get:
- 3D models (STP/IGS)
- 2D engineering drawings with tolerances (DWG/PDF)
- DFM analysis wall thickness, draft angles, and tolerances checked
- Material selection guidance
- BOM, assembly drawings, and motion analysis
- Renderings and 3D printing files (STL)
Why Choose Us:
- Factory-ready drawings no back-and-forth with manufacturers
- 10+ years experience in robotics and medical devices
- Expertise in injection molding, sheet metal, machining, and 3D printing
- We design for manufacturability your product can actually be made
- Reliable delivery typically 7 business days
- Clear communication throughout the process
We focus on mechanical design only no PCB or software.
Pricing depends on complexity. Message me with your requirements for a free estimate.
Message me to discuss your project.
Delivery style preference
Please inform the freelancer of any preferences or concerns regarding the use of AI tools in the completion and/or delivery of your order.
Get to know Beth Chen
Beth Chen
Sourcing Manager
- FromChina
- Member sinceJul 2026
- Avg. response time1 hour
Languages
Chinese, English
We are a co-founder team in Guangdong, China. My partner is the engineer (10+ years in robotics & medical devices), I handle sourcing and production.
We turn your sketches or renderings into manufacturable 3D models and engineering drawings.
Services:
- 3D modeling (STP/IGS)
- 2D drawings with tolerances (DWG/PDF)
- DFM analysis & material selection
- BOM, assembly drawings & motion analysis
- Renderings & 3D printing files
Processes: Injection molding, sheet metal, machining, 3D printing.
Mechanical design only — no PCB or software.
Talk to me, you get the whole team.
FAQ
What similar products have you worked on?
We’ve worked on robot chassis, medical analyzers, and structured-light cameras — all involving precision transmission mechanisms and complex enclosure design. 10+ years of experience in injection molding, sheet metal, and machining.
How much does the design service cost?
We charge by the hour. Send me your requirements and I’ll estimate the hours, then give you a fixed quote. Payment terms are flexible.
How long does the design take?
It depends on the part count. Send me your requirements and I’ll evaluate and give you an accurate timeline.
Can the factory manufacture directly from your drawings?
Yes. Our drawings are designed for manufacturability — with different rules for injection molding, machining, sheet metal, and 3D printing. Factory-ready.
How do you define major vs. minor revision?
We confirm the scope before starting. Major changes (appearance redesign, functional changes) are re-quoted. Minor adjustments within scope are included.
