model.ts

// Single source of truth for cabinet CAD: a Cabinet describes every part ONCE
// (its assembled 3D box + where it nests on a board); the 3D view renders the
// boxes and the DXF cut files are generated from the same data at runtime.
//
// Target machine: BobsCNC KL744 (48 x 48 work area). Cut with a 1/4" bit.
// The DXF holds TRUE finished part outlines -- let your CAM apply the
// bit-radius offset (outside profile); there is NO toolpath baked in.
// POCKET_* layers are partial-depth clears (NOT through cuts) with the depth
// in the layer name itself (e.g. POCKET_5-16_DEEP), since layer names import
// into CAM operations and text labels don't; the depth is also written next
// to each pocket on the LABELS layer for the operator.

export type Span = [number, number];
export type XYZ = [number, number, number];

// ---- CNC parameters ---------------------------------------------------------
export const BIT_DIA = 0.25; // 1/4" router bit
export const BLEED = 0.25; // unused margin kept clear of every board edge
export const GAP = 1.0; // space between parts: cutting the OUTSIDE of each
//                         part eats BIT_DIA off each side, so this leaves