noBS CAD

0.2.0 is the current release. The packages, films and editable designs below come from the tagged revision, and its recipe links install into the bundled Scripts library.

Mechanical CAD · Pre-alpha

Make parts.
Keep the design.

Sketch, shape and assemble mechanical designs. Keep the dimensions, features and relationships that make them editable. Work by hand or with your own agent, entirely on your computer.

No account, subscription or cloud CAD service required.

Planned showcase preview Make your first part
Garden bench built from dimensioned timber members and repeated crowned back slats
Made in noBS CAD, from a blank document through the same commands available to an agent. Watch the build and explore the recipe.

One desktop app. Your choice of tools.

Release 0.2.0. Parametric modeling, related assemblies, associative drawings and local MCP control. This is pre-alpha software; keep backups of important designs.

Windows x64 macOS Apple silicon Ubuntu 26.04

Windows portable ZIP · macOS signed and notarized DMG · Ubuntu DEB. Requirements, installation and updating.

Other packages and build information

Windows ARM64 ZIP · Linux x64 AppImage · Release notes, source revision and checksums. Find the installed build in File → Settings → About noBS CAD.

Start here

A part you can change.

Open Scripts, choose Sketch, extrude, ease the edges, then Run in new design. Watch a dimensioned block become a solid with a rounded rim.

Double-click its extrusion in the feature history. Change 12 to 18 mm, save first-part.nbcad, and reopen it. The editable feature history stays with the part.

Open the lesson in CAD Follow the first-part guide

Explore complete designs.

Construction, assembly relationships and drawings are part of the editable design. The examples are digitally checked; physical fit and load qualification remain open.

Printed vise with captured slide and compact threaded handle

The printed vise

100 mm jaws, 90 mm travel, six printed parts and standard hardware. Explore a captured slide, a coarse D-screw and manufacturing drawings.

Watch, inspect or rebuild the vise

Design it yourself. Or bring an agent.

Manual modeling and MCP use the same grouped interface. An agent can inspect, create, edit and present a design in the live application. Recipes replay those operations without a separate modeling language.

Connect your agent Explore all recipes

CAM and guided learning tools are future directions. See current modeling, drawing and export capabilities.