Everything from first sketch
to finished component
Mechanical design, prototyping, reverse engineering, and technical documentation — all under one roof in Lapeer, Michigan.
CAD Modeling & Drafting
Parametric 3D modeling and 2D mechanical drawings. STEP, IGES, STL, DXF, DWG, or PDF output.
Solid Edge · STEP / IGES
FDM 3D Printing
PLA, PETG, ABS, Nylon, and carbon-fiber composites. Functional prototypes through short-run production.
PLA / PETG · CF / Nylon
Rapid Prototyping
Concept to prototype in days. Validate form, fit, and function before committing to tooling.
Form / Fit / Function
Reverse Engineering
Worn, broken, or discontinued parts recreated from samples, photos, or measurements.
Legacy Parts · OEM Recreation
Jig & Fixture Design
Assembly fixtures, welding jigs, and inspection gauges designed to cut setup time.
Welding Jigs · Gauges
Technical Illustrations
Exploded-view drawings for manuals, patents, and marketing materials.
Exploded Views · Patent
Rendering & Animation
Photorealistic still renders and motion animations for product launches and investor decks.
Photorealistic · Animation
Scale Models
Precision-designed, 3D-printed scale models for trade shows and investor prototypes.
Trade Show · Display
Short-Run Production
5–200 units of a custom part with post-processing, finishing, and quality inspection.
Low Volume · Finishing
Four steps to your part
Submit
Upload files, sketches, or photos — or just describe it. We work with what you’ve got.
Review & Quote
A detailed quote returns within 24 hours. No obligation, no deposit required.
Design & Build
Your project moves into production with progress updates throughout.
Deliver
Files delivered digitally; physical parts shipped statewide or available for local pickup.
Common questions
What file formats do you accept?
STL, STEP, IGES, OBJ, DXF, DWG, PDF, JPG, and PNG. Even a clear photo of a hand sketch works as a starting point.
How long does a typical project take?
Simple CAD files and small prints: 1–3 business days. Complex assemblies: 1–2 weeks. Rush options available.
Do you offer NDAs?
Yes — available on request and executed before any files change hands. Your IP is yours, always.
What if I don’t have CAD files?
Bring a broken part, a hand sketch, a photo, or just a description — the CAD work is part of the service.
Do you work with hobbyists?
Both. Grand Designs serves commercial B2B clients and individual hobbyists and makers alike.
Ready to get started?
Upload your files or describe your project. A detailed quote arrives within 24 hours.