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I will turn your invention sketch into prototype ready 3d cad
Oliver Hayes
About this gig
Do you have an invention sketch and need 3D CAD that prints, assembles and survives a drop, not a model that looks right on screen but fails on the printer?
You're in the right place.
I specialize in turning inventor sketches, photos and rough dimensions into prototype-ready 3D CAD in SolidWorks or Fusion 360, with wall thickness, tolerances, fasteners and clearances decided at the start.
What I Offer
- Parametric 3D CAD model of your invention
- STEP and STL files for 3D printing or a quote
- Exploded and assembly views
- Dimensioned 2D drawings (PDF)
- Design notes sheet with risks and open questions
- Wall thickness and clearance planning
- Tolerance and assembly review
- Design for Manufacturing
- Fastener and hardware integration
Why Work With Me
- Designed for real-world fit and assembly
- Clear, organized files
- Fixed price confirmed before you pay
- NDA available
- Clear Communication
Tools I use: SolidWorks, Fusion 360, KeyShot, Excel.
Message me your sketch before ordering and I'll tell you what it will take to make it real.
ORDER NOW
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 Oliver Hayes
Oliver Hayes
From Product Idea to Prototype Ready Design
- FromUnited States
- Member sinceOct 2026
- Avg. response time3 hours
Languages
English, German, Spanish, French
I’m an industrial and product designer helping inventors, startups, and manufacturers turn ideas into practical, professional product designs. From reverse engineering existing parts to prototype-ready 3D CAD, concept development, and photorealistic product rendering, I focus on accuracy, clear communication, and real-world usability. Using SolidWorks, Fusion 360, and KeyShot, I create detailed models, manufacturing drawings, and product visuals for prototyping, 3D printing, and online sales. Every project starts with understanding your goals and ends with deliverables built around your needs.
Other Industrial & Product Design Services I Offer
FAQ
Can you turn a hand-drawn sketch into a 3D CAD model?
Yes. A hand-drawn sketch can be an excellent starting point. You can also provide photographs, reference products, rough dimensions, or a written description of the concept. I will review the information available and determine what is needed to develop the model
I only have an idea and no detailed sketch. Can you still help?
Yes. If you only have a written description, rough concept, or reference product, I can review the idea and determine whether it is suitable for this CAD service. If the product requires concept development first, I may recommend starting with my concept-design service.
Will the CAD model be suitable for prototyping?
The model is developed with prototyping considerations such as geometry, wall thickness, clearances, fasteners, and assembly relationships in mind. However, the suitability of a design depends on the intended manufacturing process, materials, dimensions, and other project requirements.
What information do you need to start?
Please provide your sketch, photographs, reference products, available dimensions, and a brief explanation of what the product should do. It is also helpful to know whether you intend to 3D print, CNC machine, mold, or manufacture the product using another process.
What CAD software do you use?
I primarily use SolidWorks and Fusion 360 for parametric 3D modeling and product development.
What file formats can you provide?
Standard deliverables can include STEP and STL files. Depending on the project and package, I can also provide SolidWorks or Fusion 360 source files, IGES, DXF, and PDF technical drawings.
Can you create assemblies and exploded views?
Yes. For projects involving multiple components, I can create an organized assembly, exploded view, and supporting documentation according to the selected package and project scope.
Can you design the product for manufacturing?
I can develop the CAD with practical manufacturing considerations in mind, but the exact requirements depend on the manufacturing method, material, tolerances, production volume, and other engineering constraints.
