surfacing.ts

import type { CamJob, ToolpathSeg } from "./gcode";

// Wasteboard surfacing for the BobsCNC KL744: flatten the spoilboard with a
// large surfacing bit. NOT a cabinet — no parts, no 3D — just one G-code
// program in the dropdown.
//
// The whole point of the parameters: a 2" fly cutter hitting a high spot at
// full depth would stall or kick, so every pass is VERY shallow (0.02") and
// the feed stays moderate. Zero Z on the HIGHEST point of the wasteboard
// (find it with a straightedge), so the first pass skims and nothing slams.

export const SURF = {
  bitDia: 2.0, // surfacing / fly cutter
  area: [48, 48] as [number, number], // the KL744 work area to flatten
  stepover: 1.5, // 75% of the bit — no ridges between lanes
  passDepth: 0.02, // VERY shallow — gentle on any high spot
  totalDepth: 0.04, // total material removed (2 passes); raise if it doesn't clean up
  feed: 60, // in/min
  plunge: 10, // in/min — big bit, gentle entry
  safeZ: 0.75,