Hire freelance Patent Drawings designers near Citrus Heights, CA

I help companies turn product ideas into functional, manufacturable designs — from concept development and 3D CAD modeling to prototype-ready solutions. With 20 years of experience in product develop... Read more

I help companies turn product ideas into functional, manufacturable designs — from concept development and 3D CAD modeling to prototype-ready solutions. With 20 years of experience in product development and manufacturing environments in China, I bring practical engineering knowledge from injection molding, tooling, and production processes into every project. My strength is not only creating CAD models, but understanding how products will actually be manufactured, assembled, and improved before moving into production. My professional background includes: • 7+ years in injection mold design and tooling development • 5+ years in plastic product design and mechanical engineering • 6 years managing engineering projects and localization programs • Experience working with international customers, suppliers, and manufacturing teams My services include: ◆ Plastic Product Development - Concept development and mechanical design - 3D CAD modeling (Siemens NX) - Product structure optimization - Prototype-ready design - Design improvement based on function, assembly, and manufacturability ◆ Design for Manufacturing (DFM) - Plastic part design review - Wall thickness, rib, boss, snap-fit optimization - Draft angle and molding considerations - Material and process recommendations - Risk identification before tooling ◆ Manufacturing Cost & Production Optimization - Manufacturing cost driver analysis - Design optimization for cost reduction - Tooling cost evaluation - Mold configuration recommendations - Material selection for cost and performance - Production feasibility assessment - Supplier quotation review - Manufacturing process optimization ◆ Injection Molding & Manufacturing Support - Mold feasibility review - Tooling risk assessment - Technical communication with manufacturers - Prototype and engineering change support I have worked on projects including industrial components, plastic products, and consumer products where practical engineering decisions are critical. If you need an engineering partner who can improve manufacturability, reduce production risk, and optimize manufacturing cost before tooling, I'd be happy to discuss your project.

I'm a high school student from California with 6 years of design experience looking to help transform your ideas into CAD. I design with Solidworks and am the Director Of Design on my school's FRC rob... Read more

I'm a high school student from California with 6 years of design experience looking to help transform your ideas into CAD. I design with Solidworks and am the Director Of Design on my school's FRC robotics team. Each year we design and build a 125lb robot and it is my job to direct this process. I have certified my abilities with the CSWP and CSWA exams which establish my ability as professional grade

Experienced Helicopter Maintenance Engineer with 20+ years in helicopter component maintenance. For the past 4 years, active in aircraft component design and certification. Skilled in airworthiness co... Read more

Experienced Helicopter Maintenance Engineer with 20+ years in helicopter component maintenance. For the past 4 years, active in aircraft component design and certification. Skilled in airworthiness compliance, technical documentation, and regulatory processes. Seeking opportunities in aircraft component design and certification.