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I will convert sketch to 3d cad model for 3d printing and product prototyping
Robert C
About this gig
Transform your hand sketches, images, or rough concepts into factory-ready 3D CAD models built for rapid prototyping and 3D printing. I deliver precise, functional designs engineered to exact real-world dimensions.
WHAT I OFFER:
- Hand sketch to 3D CAD conversion
- Error-free STL files optimized for 3D printing
- Production-ready STEP, IGES, and OBJ exports
- SolidWorks mechanical design & part modeling
- Electronic plastic enclosure & housing design
- 2D technical drawings & DXF blueprints
- Design for Manufacturing (DFM) optimization
- Complex multi-part mechanical assemblies
- Precise dimensional accuracy & tight tolerances
- Reverse engineering from photos & measurements
- Fully editable CAD source files (.SLDPRT, .F3D)
- Photorealistic 3D product visual renders
PERFECT FOR:
- Inventors, Makers & Hardware Startups
- E-commerce Brands & Amazon FBA Sellers
- Industrial Manufacturers & Engineering Teams
Ready to bring your prototype to life? Send me a direct message with your sketch or project details today for a fast custom quote!
CONTACT ME TODAY
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 Robert C
Robert C
3D CAD Modeling, SolidWorks Mechanical Design, Injection Molding and Packaging
- FromUnited Kingdom
- Member sinceAug 2026
- Avg. response time1 hour
Languages
English, Spanish, French, German, Italian, Dutch
Hello I am Robert an expert product designer and CAD engineer. I convert sketch to 3D CAD model for 3D printing and product prototyping. I do 3D product design and CAD modeling for injection molding and manufacturing, along with SolidWorks 3D CAD design, mechanical product modeling and technical drawing (STEP, STL, DXF). I also create Amazon product packaging design, box design, and 3D realistic rendering for high converting e-commerce listings. Factory 3ready, precise, and fast turnaround. Message me today to bring your invention or brand to life!
FAQ
What do I need to provide to get started?
You can send hand sketches, rough paper drawings, photos with dimensions, or reference images. Please include any specific measurements (in mm or inches) and let me know the intended use (e.g., 3D printing, injection molding, or CNC machining
Are the STL files guaranteed to be 100% ready for 3D printing?
Yes! Every CAD model is checked for non-manifold edges, proper wall thickness, and watertight geometry. You will receive an error-free .STL file ready to load directly into slicer software for FDM, SLA, or SLS 3D printers.
Which file formats will I receive with my delivery?
Depending on your selected package, you will receive .STL (for 3D printing), .STEP / .IGES (universal CAD/manufacturing formats), .DXF / .PDF (2D technical drawings), and native editable source files (.SLDPRT / .F3D
Is my product design and intellectual property kept confidential?
Absolutely. Your invention, sketches, and digital files are 100% safe and secure. I respect client confidentiality and am more than happy to sign a Non-Disclosure Agreement (NDA) before we begin
Can these CAD files be used for industrial manufacturing like injection molding?
Yes! Beyond rapid 3D printing prototypes, I engineer models using Design for Manufacturing (DFM) principles. This ensures appropriate draft angles, uniform wall thickness, and geometry optimized for plastic injection molding or CNC machining
What if my sketch is complex or has multiple moving parts?
If your project involves complex mechanical assemblies, enclosures, or detailed organic curves, please send me a message with your sketch before ordering. I will review your files and send you a custom tailored offer
