nimbalyst

Nimbalyst Replicad — Design skill for Claude Code

Design community

Nimbalyst extension for Replicad - use claude-code or codex to design 3d cad models, ready for printing.

How to install Nimbalyst Replicad

This entry records only its repository, not the path inside it, so there is no exact command to give. Open nimbalyst/nimbalyst-replicad and copy the folder into ~/.claude/skills/, or the file into ~/.claude/agents/.

What Nimbalyst Replicad does

Nimbalyst extension for Replicad - use claude-code or codex to design 3d cad models, ready for printing.

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README

Nimbalyst Replicad CAD

Parametric CAD for agent-built, manufacturable parts inside Nimbalyst.

![Replicad CAD editor showing a parametric motor cradle model with code, live B-rep preview, and Customizer parameters](screenshots/com.nimbalyst.replicad-0-light.png)

Replicad CAD turns `*.replicad.ts` files into live, editable 3D models with a real OpenCascade B-rep kernel behind them. Build brackets, enclosures, fixtures, adapters, gears, and imported-part mounts with TypeScript instead of dragging sketches by hand, then export clean STEP, STL, 3MF, or OBJ files for CAM, printing, or sharing.

The extension is built around a tight **write → preview → measure → correct** loop:

model with the full Replicad TypeScript API over OpenCascade.js,
tune dimensions through a generated Customizer panel,
inspect multi-view screenshots, geometry metrics, and printability warnings,
import vendor STEP files and fit new parts around measured geometry,
hand the same tools to Nimbalyst agents so they can see and repair the parts they generate.

Unlike mesh-only or simple CSG tools, this gives you the CAD operations people actually need: fillets, chamfers, booleans, shelling, lofts, sweeps, STEP import, and manufacturing-grade exports.

See [`replicad-extension-design.md`](./replicad-extension-design.md) for the full design rationale.

Quick start

Install Replicad CAD from the Nimbalyst marketplace, or install a local .nimext package from a release build.
Open a workspace that contains a *.replicad.ts file, or copy one of the models from `samples/`.
Edit the model code. The preview recompiles automatically after edits and parameter changes.
Use the Customizer panel to adjust exported parameters without rewriting code.
Export the result from the editor menu, or ask an agent to use replicad.export_model for STEP, STL, 3MF, or OBJ output.

For a fast first test, open [`samples/motor-cra