Hire Tolerance Analysis Designers in United States

I am experienced in using CAD & CAM software to develop products from concept to manufacturing using 3D modeling and Machining skills.

I am experienced in using CAD & CAM software to develop products from concept to manufacturing using 3D modeling and Machining skills.

I am a freelance CAD designer with a BS in Mechanical Engineering and an MS in Engineering Management, bringing over 10 years of experience in 3D modeling and product design. Proficient in SolidWorks,... Read more

I am a freelance CAD designer with a BS in Mechanical Engineering and an MS in Engineering Management, bringing over 10 years of experience in 3D modeling and product design. Proficient in SolidWorks, Creo, Fusion 360, and other CAD platforms, I have worked across industries including industrial, medical, defense, automotive, and aerospace. My expertise spans design for manufacturing (DFM), assembly (DFA), and inspection, with a specialized focus on design for additive manufacturing (AM) using metals, plastics, and ceramics. I help clients develop optimized, manufacturable designs that meet industry standards while pushing the limits of innovation.

Motivated and detail-oriented Mechanical Engineering professional with a strong background in CAD design, materials, and product development. I specialize in transforming ideas into precise 3D models... Read more

Motivated and detail-oriented Mechanical Engineering professional with a strong background in CAD design, materials, and product development. I specialize in transforming ideas into precise 3D models and engineering solutions, from concept to detailed production drawings. With proven expertise in SolidWorks, FEA, and static/dynamic analysis, I deliver designs that are both innovative and manufacturable. I’m passionate about collaborating with clients to solve complex challenges, create clear technical documentation, and develop efficient, cost-effective solutions that drive continuous improvement.

I’m an experienced product design engineer with a focus in the development of medical and consumer products. I worked at design consultancies for over 16 years, focusing on all kinds of very challengi... Read more

I’m an experienced product design engineer with a focus in the development of medical and consumer products. I worked at design consultancies for over 16 years, focusing on all kinds of very challenging projects.. Although I could tell you I like making things that improve people’s lives (which is true), and I'm passionate about engineering... I feel that’s a bit cliche. I decided to transition to freelance engineering because I know product development is challenging and complicated. I wanted to both make it more accessible to more people trying to get a product off the ground, as well as support teams when they are really in need of some help. Check out my Website and Portfolio at catinella. com Product development is hard work. Timelines are always tight, teams are always taxed, budgets can be thin, there are many late nights, and it can be very challenging to get a product launched. I wanted to directly help folks by providing some of my time, so they can get back some of theirs. - I'm skilled in identifying user requirements, managing budgets and schedules, conceptual engineering and feasibility, prototyping, testing, risk analysis, tolerance analysis, verification and validation, regulatory compliance, and new product launch. - I've lead small 2-4 person teams to large multi-disciplinary 14-20+ person programs consisting of human factors specialists, industrial designers, mechanical, electrical, software, and quality engineers. - I've developed a broad range of products from consumer and electronics products, to medical devices, to automation and robotics, to industrial processing systems. - I've navigated challenging technical problems through a process of breaking the problem down, identifying risks, asking appropriate questions, and mitigating risks to acceptable levels for moving forward. Some of my primary skills include: Brainstorming/Ideation Concept Sketching Concept Synthesis Project Management Issue Identification Risk Identification FMEAs Hazards and Risks Assessments CAD Development Drawings Development Analysis/Simulations Technology Research IP Analysis Prototyping Test Planning Requirements Definition Component Selection System Conceptualization System Architecture Design Cost Assessments Component Selection Electronics Integration Early Supplier Involvement Prototype Tooling Qualification Testing Low Volume Builds High Volume Builds Tolerance Analysis Design Refinement Supplier Selection Design for Manufacture and Assembly Cost Reduction Verification Testing Design Controls Supply Chain Development Assembly line setup IQ/OQ/PQ Build Instructions Pilot Builds Validation Testing Change Management Quality systems Design Controls ISO 9001 / 13485 / 14971

Mechanical design engineer with 3+ years of experience across a hard-tech startup and a product design consultancy. MS in Design Engineering (Brown/RISD), BS in Mechanical Engineering (Tufts). I spec... Read more

Mechanical design engineer with 3+ years of experience across a hard-tech startup and a product design consultancy. MS in Design Engineering (Brown/RISD), BS in Mechanical Engineering (Tufts). I specialize in early-stage physical product development — taking concepts from rough sketches or ID intent through to engineered, manufacturable geometry. I'm comfortable working across the full development arc: ideation support, proof-of-concept, detailed part and assembly design, DFM, and manufacturing handoff. I put particular care into building CAD models that are clean, well-structured, and easy for others to edit and build on. Particularly drawn to consumer products, softgoods and soft/hard goods integration, and electromechanical systems. I communicate clearly, stay organized, and work well with designers, founders, and cross-functional teams. I'm used to moving fast in resource-constrained environments and figuring things out as I go. CAD: SolidWorks (primary), Onshape, Fusion 360, Creo, AutoCAD (2D & 3D), PDM/PLM What I do well: Parametric and surfaced modeling, translating ID concepts into production-ready geometry, integrating engineering architecture into designed forms, electromechanical prototyping Manufacturing: DFM across injection molding, sheet metal, CNC, and softgoods; rapid prototyping (FDM, SLA, laser cutting, OTS integration); softgoods construction and soft/hard goods integration; experience with CMs and overseas manufacturers

I’m a mechanical engineer with hands-on experience in mechanical design, CAD modeling, and fabrication. Skilled in SolidWorks, CATIA, and AutoCAD, I’ve led projects from concept through prototype and... Read more

I’m a mechanical engineer with hands-on experience in mechanical design, CAD modeling, and fabrication. Skilled in SolidWorks, CATIA, and AutoCAD, I’ve led projects from concept through prototype and testing — including developing a maximum payload drone in partnership with Boeing. I also have R&D experience developing large-format metal 3D printers using induction heating at Rosotics. I bring practical problem-solving skills from years of building, repairing, and designing custom mechanical solutions.

I help clients turn concepts into manufacturable, visually impressive products — from early mechanical layouts to production-ready CAD models and renderings. I’m a Mechanical Engineering graduate fro... Read more

I help clients turn concepts into manufacturable, visually impressive products — from early mechanical layouts to production-ready CAD models and renderings. I’m a Mechanical Engineering graduate from Auburn University, where I co-designed and built Auburn’s 1st-place unmanned electric watercraft for the 2025 ASNE P.E.P. competition. My background combines: • CAD & 3D Modeling: SolidWorks, NX, complex assemblies, DFM & GD&T • Analysis & Validation: FEA, tolerance analysis, design reviews • Automation & Visualization: Python scripting, SolidWorks Visualize rendering I bring a hands-on, manufacturing-minded approach to every project — whether it’s a product enclosure, mechanical system, or small machine. Clients appreciate my ability to think like both a designer and a builder. If you need a precise, fast, and collaborative engineer who can take your idea from sketch to final model, let’s talk — I’m ready to jump in and deliver results that look great and work perfectly.

I help companies develop products that customers love and manufacturers can build. Over the past 30+ years, I have led the development of consumer, medical, and life science products from early conce... Read more

I help companies develop products that customers love and manufacturers can build. Over the past 30+ years, I have led the development of consumer, medical, and life science products from early concept through commercialization. My experience includes wearable, handheld, portable, desktop, laboratory, vehicle-mounted, and outdoor products, ranging from highly cost-sensitive consumer devices to complex technical systems. My expertise includes product architecture, value engineering, plastics design, tolerance analysis, design verification, failure analysis, supplier development, and global manufacturing. I work closely with cross-functional teams to balance performance, reliability, manufacturability, schedule, and cost while maintaining a relentless focus on the end-user experience. I enjoy solving difficult engineering problems, simplifying complexity, and creating products that are elegant, robust, and practical. Whether improving an existing design or developing a new product from the ground up, my goal is always the same: deliver meaningful value to customers and successful outcomes for the business.

Proficient and creative mechanical designer with solid experience, 25+ years, in new product design from conception to production. ▪ Senior Mechanical Designer in new product design for mass manufactu... Read more

Proficient and creative mechanical designer with solid experience, 25+ years, in new product design from conception to production. ▪ Senior Mechanical Designer in new product design for mass manufacturing in global environment adhering to industry standards: UL, IEC, ANSI, ISO, NEMA, NEC, NFPA. ▪ Expert in 3D model and 2D drawing creation and maintenance using ISO and ASME drafting and GD&T standards. ▪ Proficient in using PTC Windchill Product Lifecycle Management software. ▪ Extensive experience in PTC 3D Parametric Creo utilizing modules in sheet metal, Mechanism, and Simulate (FEA). ▪ Strong knowledge and experience with SolidWorks creating large assemblies, sheet metal parts, machined parts, injection molded and cast parts. ▪ Strong experience with mechanism design and analysis, complex and large assembly creation and maintenance, statistical tolerance analysis for design optimization and cost savings. ▪ Expert design skills creating and modifying parts using various manufacturing technologies such as thermoplastic and thermoset molding, metal casting, sheet metal, machining, forging, and 3D printing. Technical Proficiencies ✔ Solid & Parametric Modeling using SolidWorks, Inventor, PTC Parametric Creo, CADDS5, Alibre Design ✔ Simulation and Analytical modeling using TolAnalyst, Tolerance Manager, Creo Mechanism, Creo Simulate, Excel ✔ Presentations using Word, PowerPoint, KeyShot (Photo Rendering and animation) Patents ✔ Compact three-hole lug, Issued Jun 24, 2014 US8759695 ✔ Snap-in shutter system for rack out circuit breakers, Issued Jul 18, 2017 US9711954B2

I’m a Mechanical Engineer with 4+ years of professional experience designing, analyzing, and leading projects in automation, manufacturing, and product development. I specialize in creating detailed 3... Read more

I’m a Mechanical Engineer with 4+ years of professional experience designing, analyzing, and leading projects in automation, manufacturing, and product development. I specialize in creating detailed 3D CAD models, engineering drawings (GD&T), tolerance analysis, and mechanical system designs that are both practical and cost-effective. I’ve successfully delivered projects for major clients in the automation and pharmaceutical industries, working on everything from custom machine design to process improvements. My background includes strong expertise in SolidWorks, AutoCAD, and manufacturing methods, with a proven track record of turning concepts into high-quality, production-ready designs. Whether you need precise engineering drawings, product design support, or project leadership, I’ll bring a detail-oriented, problem-solving mindset to deliver results on time and within scope.

I specialize in mechanical design and product development, helping startups, inventors, and manufacturers transform concepts into production-ready products. I create accurate 3D CAD models, assemblies... Read more

I specialize in mechanical design and product development, helping startups, inventors, and manufacturers transform concepts into production-ready products. I create accurate 3D CAD models, assemblies, engineering drawings, and manufacturing documentation using SolidWorks and Fusion 360. My expertise includes mechanical part design, product development, sheet metal design, plastic part design, reverse engineering, enclosure design, design for manufacturing (DFM), design for assembly (DFA), and prototype-ready CAD models. Every design is developed with attention to functionality, manufacturability, and production efficiency. I deliver complete engineering documentation, including technical drawings, assemblies, BOMs, exploded views, STEP files, STL files, and production-ready files for CNC machining, sheet metal fabrication, injection molding, and 3D printing. Either you're developing a new product, improving an existing design, or preparing files for manufacturing, I focus on delivering practical engineering solutions that support reliable production and long-term product success.

Mechanical Engineer and Product Designer specializing in 3D modeling and mechanical design for new product development. Experienced with SolidWorks and AutoCAD, I create accurate, production-ready mod... Read more

Mechanical Engineer and Product Designer specializing in 3D modeling and mechanical design for new product development. Experienced with SolidWorks and AutoCAD, I create accurate, production-ready models and technical drawings for complex mechanical assemblies, including opening solutions and precision components. I help clients turn concepts into reliable, manufacturable products, focusing on functionality, efficiency, and quality. From prototypes to final designs, I deliver solutions that reduce errors, streamline production, and meet project deadlines. Core Skills: SolidWorks 3D modeling & parametric design AutoCAD 2D drafting & technical documentation Design for manufacturability (DFM) Mechanical assemblies & opening-solution products Prototype development & design validation BOM creation & tolerance analysis Key Achievements: Designed reliable opening mechanisms for consumer and industrial products Delivered production-ready models that reduced manufacturing revisions Contributed to successful product launches and cross-functional projects

I’m a designer with architecture training, now specializing in mechanical and product CAD. I create precise 3D models, assemblies, and technical drawings ready for manufacturing or visualization. Whet... Read more

I’m a designer with architecture training, now specializing in mechanical and product CAD. I create precise 3D models, assemblies, and technical drawings ready for manufacturing or visualization. Whether it’s parts, complex assemblies, or polished renderings, I deliver accurate, professional results. -Knows SolidWorks, Fusion 360, AutoCAD, Rhino, Revit -Expert in tolerances, BOMs, assembly workflows, and design-for-manufacturing -Reliable remote collaborator with strong project management and clear communication I focus on high-quality work delivered on time. Let’s turn your product ideas into production-ready designs.

Mechanical Engineer with experience in aerospace, semiconductor manufacturing, and product development, specializing in machined parts, Design for Manufacturing (DFM), and GD&T. I help clients transfo... Read more

Mechanical Engineer with experience in aerospace, semiconductor manufacturing, and product development, specializing in machined parts, Design for Manufacturing (DFM), and GD&T. I help clients transform concepts into manufacturable designs by creating high-quality 3D CAD models, engineering drawings, and production-ready documentation. My background includes mechanical design, supplier collaboration, tolerance analysis, additive manufacturing, and CNC machining. Whether you’re developing a prototype, refining an existing design, or preparing a product for manufacturing, I focus on practical engineering solutions that reduce cost, improve manufacturability, and meet performance requirements. Services include: * 3D CAD modeling (SolidWorks, CATIA, Autodesk Inventor, NX) * Engineering drawings and GD&T (ASME Y14.5) * Design for Manufacturing (DFM) * Machined part design and optimization * Tolerance stack-up analysis * Prototype and product development * Engineering design reviews I take pride in clear communication, attention to detail, and delivering designs that are ready for the shop floor—not just the computer screen.

Mechanical Engineer and CAD professional with 25+ years of experience in mechanical design, product development, technical drafting, and manufacturing support. Extensive background designing precision... Read more

Mechanical Engineer and CAD professional with 25+ years of experience in mechanical design, product development, technical drafting, and manufacturing support. Extensive background designing precision opto-mechanical and electromechanical products, creating 3D CAD models, detailed drawings, BOMs, and engineering documentation using SolidWorks, AutoCAD, and Autodesk Inventor. Experienced in developing products from concept through prototype, testing, and production, with expertise in DFM/DFA, GD&T, tolerance analysis, rapid prototyping, 3D printing, fixture design, and engineering change management. Strong knowledge of manufacturing processes including machining, sheet metal fabrication, welding, casting, molding, and finishing operations. Proficient with PLM and ERP systems including Microsoft Dynamics 365/Bluestar PLM, Epicor ERP, Vantage, and pcMRP. Proven ability to collaborate with engineering, manufacturing, suppliers, and cross-functional teams to deliver accurate, production-ready designs and documentation while improving manufacturability, quality, and cost efficiency.

I’m a mechanical engineer with a strong background in 3D CAD modeling, product design, and precision prototyping. I specialize in creating detailed, manufacturable designs that move smoothly from conc... Read more

I’m a mechanical engineer with a strong background in 3D CAD modeling, product design, and precision prototyping. I specialize in creating detailed, manufacturable designs that move smoothly from concept to production. I’m proficient in SolidWorks, Onshape, Rhino, and NX, and experienced in tolerance analysis, design for manufacturing (DFM/DFX), and mechanical assemblies. My portfolio includes projects such as a fully functional 25-part Gumball Machine, a high-speed Stirling Engine, and a sensor-integrated chess board, each taken from concept to working prototype. With a B.S.E. and M.S.E. in Mechanical Engineering from the University of Pennsylvania, I bring both technical precision and creative problem-solving to every project. I enjoy collaborating with clients to transform ideas into clean, production-ready CAD models and prototypes that meet functional and aesthetic goals.

I’m a degreed mechanical engineer with over 30 years of hands-on experience in manufacturing, mechanical design, and engineering leadership. My career spans industries including automotive, consumer p... Read more

I’m a degreed mechanical engineer with over 30 years of hands-on experience in manufacturing, mechanical design, and engineering leadership. My career spans industries including automotive, consumer products, industrial equipment, and more. This broad background gives me a practical understanding of how to turn ideas into production-ready solutions. I specialize in CAD modeling using SolidWorks and AutoCAD, with deep expertise in design for manufacturability (DFM), tolerance stack-up, BOM creation, and production optimization. Whether you’re prototyping a new product, refining an existing design, or converting legacy CAD files, I bring precision, speed, and real-world insight to every project. My professional history includes roles as a Manufacturing Engineer, Project Engineer, Engineering Manager, Mechanical Designer, and Operations Manager. I’ve led cross-functional teams, improved throughput, reduced tooling costs, and solved complex design challenges under tight deadlines. What I offer: • Production-ready CAD models and assemblies • Legacy CAD file conversion and cleanup • Design optimization for CNC, injection molding, and additive manufacturing • Tolerance analysis and GD&T application • BOM creation and documentation • Remote consulting for manufacturing process improvement I’m available for short-term projects, long-term collaborations, and remote engagements. Let’s make your design not just functional but manufacturable.

Mechanical designer with professional experience supporting high-precision mechanical systems in a fast-paced engineering environment. Skilled in 3D CAD modeling, detailed manufacturing drawings, and... Read more

Mechanical designer with professional experience supporting high-precision mechanical systems in a fast-paced engineering environment. Skilled in 3D CAD modeling, detailed manufacturing drawings, and design for manufacturability. Experienced with creating parametric models, assemblies, and production-ready drawings using modern CAD tools, with strong attention to tolerance control, fit, and functional performance. I regularly work with complex assemblies, precision components, and prototype hardware that must meet strict quality and reliability standards. Areas I can help with: • 3D CAD modeling from sketches or concepts • Mechanical part and assembly design • Manufacturing drawings and GD&T • Design for machining, fabrication, and 3D printing • Fixture and tooling design • Reverse engineering existing parts I enjoy helping clients turn ideas into clear, manufacturable designs and communicating closely throughout the design process to ensure the final result meets both functional and production needs. Tools: Creo (Parametric), mechanical drafting, GD&T, parametric modeling, tolerance analysis, and assembly design.

I’ve worked on over 100+ parts inside the NASA Orion crew capsule. Including the handle for manual control of the craft.

I’ve worked on over 100+ parts inside the NASA Orion crew capsule. Including the handle for manual control of the craft.

• Autodesk Certified Professional in Autodesk Inventor Professional Software. (License # 00313355). • Autodesk Certified Associate in AutoCAD Software. (License # 00296190). • 5 years of experience... Read more

• Autodesk Certified Professional in Autodesk Inventor Professional Software. (License # 00313355). • Autodesk Certified Associate in AutoCAD Software. (License # 00296190). • 5 years of experience with CAD packages (SolidWorks, Autodesk Inventor, AutoCAD, Revit, CATIA V5, Pro E (Creo)). • 2.5 years of experience with CAE packages (HyperMesh, Abaqus, ANSYS, Optistruct, MATLAB). • 2.5 years of experience with Analysis (Linear & Non-linear Static, Dynamic, GD & T, Tolerance Analysis, Design Optimization). • Experience with Sheet metal, DFM, Bill of Materials, DFMEA, Sculpting, Metrology, Verification and Validation of Design. • Excellent written and verbal communication skills, organizational skills, Problem-solving skills, and multitasking skills. • Strong knowledge in advanced material selection for rapid prototyping, injection molding and 3D printing. • Proficient in Microsoft Word, Excel, Outlook, MS Office, Project, PowerPoint.

3 years of experience developing consumer electronics/retail displays from prototype to production Worked on first generation products such as Apple AirPods and HomePod Self-organized individual con... Read more

3 years of experience developing consumer electronics/retail displays from prototype to production Worked on first generation products such as Apple AirPods and HomePod Self-organized individual contributor with relentless and resilient work ethic Proficient in making and communicating design modifications in NX, SolidWorks, and AutoDesk software

Experienced in Creo with 9 years experience as Manufacturing Engineer in Med Device (CNC Machining focused) bringing new products to market and their manufacturing process on line. I'm comfortable ge... Read more

Experienced in Creo with 9 years experience as Manufacturing Engineer in Med Device (CNC Machining focused) bringing new products to market and their manufacturing process on line. I'm comfortable generating Engineering Drawings, Manufacturing Drawings/Process Instructions, developing gaging methods, tolerance analysis. I want to be as helpful as possible and committed to providing great solutions.

Highly motivated and energetic mechanical engineering professional leader with 25+ years’ experience converting abstract ideas into products for consumer, industrial, R&D, military and aerospace appli... Read more

Highly motivated and energetic mechanical engineering professional leader with 25+ years’ experience converting abstract ideas into products for consumer, industrial, R&D, military and aerospace applications. Technical leadership directing team members on the execution of product development from concept to delivery. Broad knowledge of planning and design techniques for a wide range of manufacturing processes, one-off products and production products for both high-mix-low-volume and high-volume production environments.

Mechanical Engineer with five years experience working as a lead mechanical designer for advanced electronic assemblies and machined parts. Primary experience in PTC Creo and Windchill. Capable of GD... Read more

Mechanical Engineer with five years experience working as a lead mechanical designer for advanced electronic assemblies and machined parts. Primary experience in PTC Creo and Windchill. Capable of GD&T definition according to ASME Y14.5 and tolerance analysis.

Mechanical Engineer with a background in bringing products from proof of concept to mass production. Experienced in CAD modeling, FEA, and 2D drawing generation and worked with plastic and metal parts... Read more

Mechanical Engineer with a background in bringing products from proof of concept to mass production. Experienced in CAD modeling, FEA, and 2D drawing generation and worked with plastic and metal parts and 100+ parts assemblies.