nx_metal_gcode.nx

nx_metal_gcode.nx -- LIB: the METAL (WAAM = Wire Arc Additive Manufacturing) G-code emitter -- 3D-printing workstream R3, completing the material ladder filament -> concrete -> METAL. Deposits steel as weld beads: each layer turns the arc ON (M3 S<amps> + wire feed), traces the perimeter, turns the arc OFF (M5), then DWELLS (G4 P<ms>) for inter-layer cooling -- the WAAM-critical step that prevents heat accumulation/warping. Reads the steel profile from print:mat:steel_waam (thin layers ~1mm). CARDINAL 26 (never-brick): motion + arc-control + wire-feed only (G21/G90/G28/G92/G0/G1/M3/M5/G4/M84) -- NO firmware/EEPROM writes. HONEST SAFETY: arc welding is high-power + hot; a real-hardware run requires operator safety interlocks (future, gated) -- this rung EMITS the G-code file only. Integer mm math. license_tier: ORIGINAL