clean up
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156
scripts/export_for_msla.sh
Executable file
156
scripts/export_for_msla.sh
Executable file
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#!/usr/bin/env bash
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# export_for_msla.sh — KiCad Gerber export + pm4n generation for Anycubic Photon Mono 4
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#
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# Usage:
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# ./export_for_msla.sh [OPTIONS] <path/to/board.kicad_pcb>
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#
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# Options:
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# --layers LAYER,LAYER,... KiCad layer names to export (default: F.Cu)
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# --invert LAYER,LAYER,... Layers to invert (comma-separated, e.g. F.Cu,B.Mask)
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# --mirror LAYER,LAYER,... Layers to mirror (comma-separated, e.g. F.Cu,F.Mask)
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# --exposure SECONDS Exposure time in seconds (default: 60)
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# --dummy FILE Dummy .pm4n template (default: Dummy.pm4n beside this script)
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# --out DIR Output directory (default: ./output)
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# --dpmm N Render resolution in dots/mm (default: native 58.824)
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# --pos X,Y Board position on LCD in mm (default: centred)
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# -h, --help Show this help
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#
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# Example:
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# ./export_for_msla.sh --invert F.Cu,B.Mask --mirror F.Cu,F.Mask panel/Flow_Controller_Panel.kicad_pcb
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#
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# Layer name → Gerber filename mapping (KiCad default):
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# F.Cu → <board>-F_Cu.gbr
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# B.Cu → <board>-B_Cu.gbr
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# F.Mask → <board>-F_Mask.gbr
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# B.Mask → <board>-B_Mask.gbr
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# F.SilkS → <board>-F_Silkscreen.gbr
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# (etc.)
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set -euo pipefail
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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PYTHON="${PYTHON:-python3}"
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CONVERTER="$SCRIPT_DIR/gerber_to_pm4n.py"
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# ---- defaults ----
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LAYERS="F.Cu"
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INVERT_LAYERS=""
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MIRROR_LAYERS=""
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EXPOSURE="60"
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DUMMY="$SCRIPT_DIR/Dummy.pm4n"
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OUT_DIR="./output"
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DPMM=""
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POS=""
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# ---- helpers ----
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usage() {
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sed -n '/^# Usage/,/^[^#]/{ /^#/{ s/^# \{0,1\}//; p } }' "$0"
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exit 0
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}
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contains() { # contains <list> <item> — comma-separated list membership
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local list="$1" item="$2"
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echo "$list" | tr ',' '\n' | grep -qx "$item"
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}
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layer_to_filename() { # KiCad layer name → Gerber filename stem
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local layer="$1"
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echo "$layer" | sed 's/\./_/g'
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}
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# ---- parse arguments ----
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PCB_FILE=""
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while [[ $# -gt 0 ]]; do
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case "$1" in
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--layers) LAYERS="$2"; shift 2 ;;
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--invert) INVERT_LAYERS="$2"; shift 2 ;;
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--mirror) MIRROR_LAYERS="$2"; shift 2 ;;
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--exposure) EXPOSURE="$2"; shift 2 ;;
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--dummy) DUMMY="$2"; shift 2 ;;
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--out) OUT_DIR="$2"; shift 2 ;;
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--dpmm) DPMM="$2"; shift 2 ;;
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--pos) POS="$2"; shift 2 ;;
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-h|--help) usage ;;
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-*) echo "Unknown option: $1"; exit 1 ;;
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*) PCB_FILE="$1"; shift ;;
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esac
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done
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if [[ -z "$PCB_FILE" ]]; then
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echo "ERROR: no .kicad_pcb file specified"
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echo "Usage: $0 [OPTIONS] <board.kicad_pcb>"
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exit 1
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fi
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if [[ ! -f "$PCB_FILE" ]]; then
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echo "ERROR: file not found: $PCB_FILE"
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exit 1
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fi
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if [[ ! -f "$DUMMY" ]]; then
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echo "ERROR: dummy .pm4n not found: $DUMMY"
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echo "Place Dummy.pm4n next to export.sh, or pass --dummy <path>"
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exit 1
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fi
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# ---- derive names ----
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BOARD_NAME="$(basename "$PCB_FILE" .kicad_pcb)"
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GERBERS_DIR="$OUT_DIR/gerbers"
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PM4N_DIR="$OUT_DIR/pm4n"
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mkdir -p "$GERBERS_DIR" "$PM4N_DIR"
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# ---- Step 1: export Gerbers via kicad-cli ----
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echo "=== Exporting Gerbers from KiCad ==="
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echo " Board: $PCB_FILE"
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echo " Layers: $LAYERS"
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echo " Output: $GERBERS_DIR"
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echo ""
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kicad-cli pcb export gerbers \
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--output "$GERBERS_DIR" \
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--layers "$LAYERS" \
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--no-protel-ext \
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--subtract-soldermask \
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"$PCB_FILE"
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echo ""
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# ---- Step 2: convert each layer to .pm4n ----
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echo "=== Converting Gerbers to .pm4n ==="
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IFS=',' read -ra LAYER_LIST <<< "$LAYERS"
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for LAYER in "${LAYER_LIST[@]}"; do
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LAYER_STEM="$(layer_to_filename "$LAYER")"
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GBR_FILE="$GERBERS_DIR/${BOARD_NAME}-${LAYER_STEM}.gbr"
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if [[ ! -f "$GBR_FILE" ]]; then
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echo " WARNING: expected Gerber not found: $GBR_FILE — skipping"
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continue
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fi
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OUT_PM4N="$PM4N_DIR/${BOARD_NAME}-${LAYER_STEM}.pm4n"
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# Build flags
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FLAGS=()
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if contains "$INVERT_LAYERS" "$LAYER"; then FLAGS+=(--invert); fi
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if contains "$MIRROR_LAYERS" "$LAYER"; then FLAGS+=(--mirror); fi
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[[ -n "$DPMM" ]] && FLAGS+=(--dpmm "$DPMM")
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[[ -n "$POS" ]] && FLAGS+=(--pos "$POS")
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echo " Layer: $LAYER"
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echo " Gerber: $GBR_FILE"
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echo " pm4n: $OUT_PM4N"
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echo " Flags: ${FLAGS[*]:-<none>} exposure=${EXPOSURE}s"
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"$PYTHON" "$CONVERTER" \
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"$DUMMY" \
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"$GBR_FILE" \
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--output "$OUT_PM4N" \
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--exposure "$EXPOSURE" \
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"${FLAGS[@]}"
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echo ""
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done
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echo "=== Done ==="
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echo "pm4n files in: $PM4N_DIR"
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