FluidCAD

FluidCAD is under active development. APIs and features may change as the project evolves.

Features

Code-Driven 3D Modeling

Design parametric 3D models using JavaScript. Every change in your code is reflected instantly in the 3D viewport.

import { extrude, fillet, sketch } from 'fluidcad/core';
import { circle } from 'fluidcad/core';

sketch("xy", () => {
    circle(50)
})

const e = extrude(50)

fillet(5, e.startEdges())

Traditional CAD Workflow

A modeling workflow that feels familiar to users of mainstream CAD software -- sketches, extrusions, fillets, shells, booleans, and more -- all driven by code.

Modeling History

Navigate through your modeling history step by step. Review how any model was built and roll back to any point in the feature tree.

Interactive Prototyping

Some operations support interactive mouse-driven input directly in the viewport, letting you prototype faster without writing every parameter by hand.

Feature Transforms

Re-apply modeling features based on matrix transformations. Move, rotate, or mirror entire feature sequences to build complex geometry from simple building blocks.

sketch("xy", () => {
    rect(200, 100).center()
})

const e1 = extrude(20)

sketch(e1.endFaces(), () => {
    circle([-80, 30], 30)
});

const pin = extrude(10)

const f = chamfer(2, pin.endEdges());

repeat("linear", ["x", "y"], {
    count: [4, 2],
    length: [160, -60]
}, pin, f)

Pattern Copying

Duplicate features in linear or circular patterns to quickly populate repetitive geometry.

Smart Defaults

Most operations just do the right thing without extra arguments. extrude picks up the last sketch, fillet targets the last selection, and touching shapes are automatically fused -- less boilerplate, more readable code.

STEP Import / Export

Import and export STEP files with full color support. Bring in existing CAD models or share your designs with any standard CAD tool.

Use Your Favorite Editor

FluidCAD ships official extensions for VS Code and Neovim, but works with any editor -- just point the CLI at your project.

Getting Started

1. Create a New Project

mkdir my-app && cd my-app
npm init -y
npm install fluidcad
npx fluidcad init

This generates init.js and jsconfig.json to get you started.

2. Set Up Your Editor

{
  "fluidcad/fluidcad",
  config = function()
    require("fluidcad").setup()
  end,
  ft = { "javascript" },
}

npx fluidcad -w ./my-app

License

LGPL-2.1