Mortise & Tenon — Fusion add-in

Cuts mortise and tenon joints between two butted boards. Tenons grow out of a face on one board and matching mortises, oversized by a clearance, are cut into the other. The joint is a re-editable custom feature: double-click it in the timeline to change its values. Corners are square, so add your own dogbones. See plan.md for the full spec.

Install

1. In Fusion: Utilities → Add-Ins → Scripts and Add-Ins (Shift+S).
2. On the Add-Ins tab, click + and pick the MortiseAndTenon/ folder of this repo.
3. Select MortiseAndTenon and click Run (tick Run on Startup if you like).

The Mortise & Tenon command appears in Solid → Create and Solid → Modify.

Use

1. Pick the flat face on the tenon board that butts against the other board.
2. Pick the mortise body (the other board).
3. Adjust the values, which are filled in from the face:
   • Tenons: count (default 2). Tenons always run the board's full thickness.
   • Edge margin: distance from each end of the face (default: board thickness).
   • Tenon width: size along the face. The default makes tenons and gaps equal, and it's refilled when you change the count or margin.
   • Through: tenons go flush through the mortise board. Untick for blind tenons and set Depth (default: half the mortise board).
   • Clearance: added to every mortise wall, and to a blind mortise's depth (default 0.005").
4. To change the joint later, double-click Mortise & Tenon in the timeline. Upstream changes (for example a thicker mortise board) regenerate it.