GrandpaCAD
Browser-based AI CAD software that turns text or images into dimensionally accurate, 3D-printable models for makers.
About GrandpaCAD
GrandpaCAD is a browser-based AI CAD tool for creating 3D-printable models from natural-language prompts and images. It is aimed at makers, hobbyists, tinkerers, and small teams that want printable geometry without learning a traditional CAD interface.
The service can generate 3D models, expose parameters for later tuning, support model experimentation and reverts, run concurrent generations, add 3D text, use datasheet search for requested specifications, organize models in workspaces, and export 3MF files for printing. Its public roadmap mentions additional export formats such as STL and STEP.
GrandpaCAD is offered as a SaaS product with a free trial allowance, monthly subscription access, and one-time generation credit packs. Public pricing is generation based, with paid packs and subscription quotas plus extra-generation charges.
Key Functions
Text-to-CAD generation, image-to-3D model generation, printable 3MF export, parametric model tuning, concurrent generations, workspaces, datasheet-assisted modeling
Technical Specifications
Platforms
Browser
License Type
Free , Subscription , Usage-based , One-time
Pricing
Free
Free
one-time allowance
Free tier with 3 AI model generations, observed on the public pricing page in June 2026.
Monthly Subscription
$24.00
per month
Includes 70 generations per month, private models, commercial license, multiple workspaces, and $0.30 per extra generation; tax extra.
Starter Pack
$12.00
one-time
25 generations at $0.48 per generation, valid for 1 year; tax extra.
Plus Pack
$22.00
one-time
55 generations at $0.40 per generation, valid for 1 year; tax extra.
Pro Pack
$45.00
one-time
125 generations at $0.36 per generation, valid for 1 year; tax extra.
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