20+ years of hands-on jewelry production experience. I evaluate CAD not only for modeling accuracy, but for casting, stone setting, polishing, durability, wearability, and production risk before manuf... Read more

20+ years of hands-on jewelry production experience. I evaluate CAD not only for modeling accuracy, but for casting, stone setting, polishing, durability, wearability, and production risk before manufacturing. I help jewelry brands, workshops, and designers develop production-ready CAD and refine existing designs for better manufacturability, stone security, comfort, and overall balance. I can support: • Production-ready jewelry CAD • Pre-production design review • Stone-setting and structural review • Prong, stone-seat, and thickness refinement • Casting and polishing considerations • Wearability and durability improvement

I’m a hardware design consultant helping early-stage physical products move into stable, repeatable production. By early-stage, I mean products with some technical foundation already in place: a defi... Read more

I’m a hardware design consultant helping early-stage physical products move into stable, repeatable production. By early-stage, I mean products with some technical foundation already in place: a defined product direction, working prototype, MVP, pilot build, field-trial unit, or first production version. I’m most useful when the next challenge is clarifying what the product must do, how it should behave, how it will be validated, and what needs to change before manufacture. Many teams can build a prototype that works once. Fewer can prepare that product for manufacturability, reliability, supplier handover, and scale. That’s where I focus. I support founders, startups, and engineering teams with: • Product specification and requirements definition • MVP development, prototyping, and validation • Hardware system behaviour and design validation • Cross-functional development with mechanical, electronics, firmware, software, and supplier teams • Prototype-to-production transition • Design for Manufacture (DFM) • Manufacturing readiness reviews • Supplier coordination and tooling review • Reliability troubleshooting and failure analysis • Production ramp preparation I’ve developed products from concept through MVP, validation, production, and post-production support, including products that moved from early deployed units to thousands in the field and were improved through real-world reliability feedback. If you need senior hardware/product development judgement before committing more development time, tooling spend, supplier decisions, or production effort, I can help reduce costly redesigns, reliability issues, supplier delays, and avoidable production mistakes.

I make hardware happen in China. You have a product idea. You need someone who can actually build it – not just draw it, but mold it, assemble it, and ship it. That's what I do. Here's what makes me... Read more

I make hardware happen in China. You have a product idea. You need someone who can actually build it – not just draw it, but mold it, assemble it, and ship it. That's what I do. Here's what makes me different: 🏭 FACTORY ACCESS My family runs an injection molding factory + tooling shop in Zhejiang, China. When you work with me, you're not hiring a freelancer – you're getting direct access to a production line. 📦 SMALL BATCHES WELCOME Need 500 units? Most factories won't even reply. I will. I handle prototyping ➔ mold making ➔ production ➔ shipping, all in one seamless workflow. 🔧 13 YEARS, 4 INDUSTRIES Over 13 years of heavy engineering experience across personal care (hair dryers, beauty devices), outdoor power equipment (lawn mowers), and children's ride-ons. If it has plastic parts and electronics, I've built it. WHAT I CAN DO FOR YOU: ✅ Full product development: sketch ➔ 3D design ➔ prototype ➔ tooling ➔ production ➔ delivery ✅ DFM analysis + mold design + competitive supplier quotes ✅ Small batch pilot production (500–5,000 units) with water resistance & fatigue testing ✅ Competitor teardown + cost analysis reports ✅ Factory audits and quality control in China ✅ Payment in USDT accepted HOW IT WORKS: 1. You share your idea (sketch, reference, STL – anything works). 2. I design for manufacturing + quote you the full cost. 3. You approve ➔ I make the mold ➔ run the production. 4. You receive finished products at your door. Let's talk about your project. Click the button and tell me what you're building. I'll respond within 24 hours.

I am a Mechanical Design Engineer with hands-on experience in CAD modeling, product development, and R&D, currently working in the aerospace and drone systems domain. I specialize in SOLIDWORKS, CATIA... Read more

I am a Mechanical Design Engineer with hands-on experience in CAD modeling, product development, and R&D, currently working in the aerospace and drone systems domain. I specialize in SOLIDWORKS, CATIA, Fusion 360, AutoCAD, and assembly-level design with a strong focus on manufacturability, cost optimization, and real-world implementation. I’ve delivered production-ready designs for industrial, structural, and aerospace applications, including mechanisms, enclosures, and docking systems. I value clear communication, accuracy, and on-time delivery for every project.

Mechanical engineer with 15+ years of experience in product development, CFD analysis, CAD design, embedded systems, and software development. Experience includes DFM (Design for Manufacturing), GD&T,... Read more

Mechanical engineer with 15+ years of experience in product development, CFD analysis, CAD design, embedded systems, and software development. Experience includes DFM (Design for Manufacturing), GD&T, tolerance analysis, injection mold design, mechanical design review, engineering validation, and practical manufacturing considerations. Software development background includes Java, C++, embedded C, C#, Python, FPGA-related development, image processing, and DART. Experience with PLA-based 3D printing, prototype validation, and plastic injection molding. Strong practical background in Design for Manufacturing (DFM), mold-friendly part design, and production-oriented CAD development. Please provide at least a sketch, reference image, drawing, or a reasonably detailed project description. I do not list every project from my career. Please review my GitHub portfolio to evaluate my technical background and capabilities. If the projects and evidence presented in my GitHub portfolio are not sufficient for your evaluation, please feel free to pass on my profile. I carefully review every project before accepting work. If I believe a project is not a good fit for my skills, experience, or available time, I will let you know immediately so that neither of us wastes valuable time. Please excuse any imperfections in my English. English is not my native language. My focus is engineering results, technical responsibility, and clear communication rather than polished wording. Regarding CAD work, I primarily use Autodesk Fusion 360 for 3D modeling and design tasks. I have experience working with CAD data from various external environments through neutral formats such as STEP, enabling cross-platform data review and interpretation. If required, CAD models can be modified or adapted, provided that Fusion 360-compatible data or appropriate access to the client’s working environment is available. The primary deliverable format is STEP, and cross-platform data handling may require alignment on file compatibility and workflow conditions. Regarding CFD-related tasks, I focus on developing engineering insights, including analysis review, interpretation of results, performance trend analysis, and directions for design optimization. CAD models can be modified if Fusion 360-compatible data is provided, or if the client provides the necessary access rights or a suitable CAD working environment.

Mechanical Design Engineer with experience in SolidWorks, product development, manufacturing drawings, reverse engineering, and mechanical assemblies. Skilled in creating production-ready CAD models,... Read more

Mechanical Design Engineer with experience in SolidWorks, product development, manufacturing drawings, reverse engineering, and mechanical assemblies. Skilled in creating production-ready CAD models, fabrication drawings, BOMs, and engineering documentation. Experienced with mechanism design, sheet metal, 3D printing, and prototype development. Open to freelance, contract, and remote opportunities.