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GrandpaCAD

Simple 3D modeling for everyone

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Your first model

Video series1 min watch

Video series

Your first model

1 min

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Your first model

1 min

CAD models & search

Organic models

What's in here

I generate a wall-mounted headphone hook from scratch in this video. The workflow is simple: describe what you need, refine with follow-ups, and correct specific dimensions. All in plain English.

Describe, don't design

Tell GrandpaCAD what you need in plain English. Include dimensions when they matter.

Automatic engine selection

GrandpaCAD picks the right engine for the job. Functional parts get routed to parametric CAD, so they're dimensionally accurate and watertight.

Iterative refinement

Keep chatting to add features, adjust dimensions, or fix problems. Context carries forward between messages.

Prompts from this video

Copy these prompts to try the same workflow yourself.

1
Wall mounted headphone hook, 40mm wide, 3mm thick walls
Describe what you need with dimensions
2
Add two mounting holes, 4mm diameter, 30mm apart
Refine by adding details in follow-up messages
3
Make the hook curve deeper, 25mm instead of 15
Correct specific measurements conversationally

Try it yourself

Open GrandpaCAD and paste the first prompt. That's it.