Mechanical design studio
Design it in parts.Prove it in motion.
For DIY builders, makers, woodworkers and metalworkers, students, and small fabrication shops. Real lumber sizes, real hardware and real hard stops, so the thing on screen is the thing you can cut, bolt and swing.
- catalogued parts
- 46
- joint types
- 6
- materials
- 12
- real world scale
- 1 in = 1 unit
Sample assemblies
Start from a working assembly
Each one opens as a live document: parts on real stock sizes, joints with hard stops, fastener stacks, and a bill of materials that updates as you edit. Nothing is a screenshot.
Pivoting Lumber Joint
2x8 rail on a 4x6 post, hung on a 1 in through-bolt pivot
The connection every DIY build turns on. One bolt, two washers, a nut, and the choice between a clamped joint and a pivot. Drag the angle and watch the hard stops.
Wheel and Axle
10 in wheel on a fixed 5/8 in shaft, spacers and nyloc retention
A driven rotational joint with no limits. Set the RPM, press play, and read angular velocity live while the shaft stays put.
Folding Workbench Concept
48 x 24 top on two folding leg frames, 1/2 in carriage bolt pivots
Rigid joints and pivots working together. Five parts per leg frame move as one member through an 85 degree fold.
Small Utility Cart Concept
36 x 20 deck, four 8 in wheels on fixed axles, tilting tow handle
Four independent wheel joints and a limited handle pivot on one frame. The scene tree earns its keep here.
Gate Hinge Concept
42 in braced gate on a 4x6 post, two strap hinges, 110 degree swing
A braced leaf on a single vertical hinge axis. Seven parts swing as one rigid sub-assembly.
Capability board
What ships today, and what is coming
One board, no asterisks. Anything marked live is running in the build you are looking at right now.
Included
ShippingRunning in this build, on every document you open.
- Kinematic solverLive
Positional constraint solve across joint chains, running now on every scene.
- Bill of materialsLive
Live part grouping, mass roll-up and CSV export from the current document.
- Cut listLive
Linear stock grouped by length, with a first-fit estimate of sticks required.
- Design CopilotBeta
Reads the live document and answers questions about the mechanism you built.
All of it runs on your machine. No account, no upload, no watermark.
Pro
Not in this buildThe simulation and fabrication modules. Not enabled in this build.
- Pro motion solverPro
Rigid-body dynamics with contacts, friction and motors, backed by Rapier.
- Pro structural analysisPro
Member sizing, fastener shear and bearing checks, deflection under service load.
- Swept interferencePro
Sweeps every joint through its full range and reports the first collision.
- Cut optimisationPro
True one dimensional nesting across stock lengths, kerf aware.
- PDF plan exportPro
Dimensioned drawings, exploded views and a build sequence in one document.
- CNC and DXF exportPro
Flat patterns and hole schedules out to DXF, STEP and G-code posts.
- Supplier pricingPro
Live regional pricing against the BOM, with substitutions that cost less.
Priced when it ships. Nothing here is billed today.
Studio
Not in this buildThe team and cloud layer, with everything in Pro included.
- Cloud projectsStudio
Documents that follow you between machines, with offline first sync.
- Version historyStudio
Named checkpoints, visual diffs between revisions, restore any point.
- Live collaborationStudio
Multiple cursors in one assembly, with comments pinned to parts and joints.
- Team workspaceStudio
Shared part libraries, house materials and per-shop fastener standards.
- Component marketplaceStudio
Manufacturer models with real part numbers, dropped straight into the BOM.
- AR previewStudio
Stand the assembly on the shop floor at full size before cutting anything.
For shops with more than one pair of hands on the same build.
Straight answer on the solver: this build runs a simplified kinematic solver. It places parts through joint chains and holds every hard stop, but it does not compute mass, inertia or contact. The physics backend is not enabled yet, so nothing you see here is a load rating.