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154
export.sh
Executable file
154
export.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)
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# --mirror LAYER,LAYER,... Layers to mirror (comma-separated)
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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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# --preview-scale N Downsample preview PNG by N (default: 1 = full resolution)
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# --verbose Print detailed progress
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# -h, --help Show this help
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#
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# Normal output: one output filepath per layer.
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# Verbose output: full progress from KiCad and the converter.
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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/board.kicad_pcb
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#
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# KiCad layer name → Gerber filename stem:
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# F.Cu → F_Cu B.Cu → B_Cu
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# F.Mask → F_Mask B.Mask → B_Mask
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# F.SilkS → F_Silkscreen B.SilkS → B_Silkscreen
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# F.Paste → F_Paste B.Paste → B_Paste
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# Edge.Cuts → Edge_Cuts
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# Front → Front Back → Back
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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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VERBOSE=0
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PREVIEW_SCALE=""
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# ---- helpers ----
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usage() {
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grep '^#' "$0" | sed 's/^# \{0,1\}//'
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exit 0
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}
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log() { [[ $VERBOSE -eq 1 ]] && echo "$@" || true; }
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contains() {
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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() {
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case "$1" in
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F.Cu) echo "Front" ;;
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B.Cu) echo "Back" ;;
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F.SilkS) echo "F_Silkscreen" ;;
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B.SilkS) echo "B_Silkscreen" ;;
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Edge.Cuts) echo "Edge_Cuts" ;;
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*) echo "${1//./_}" ;;
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esac
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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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--preview-scale) PREVIEW_SCALE="$2"; shift 2 ;;
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--verbose) VERBOSE=1; shift ;;
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-h|--help) usage ;;
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-*) echo "ERROR: unknown option: $1" >&2; exit 1 ;;
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*) PCB_FILE="$1"; shift ;;
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esac
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done
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[[ -z "$PCB_FILE" ]] && { echo "ERROR: no .kicad_pcb file specified" >&2; exit 1; }
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[[ ! -f "$PCB_FILE" ]] && { echo "ERROR: file not found: $PCB_FILE" >&2; exit 1; }
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[[ ! -f "$DUMMY" ]] && { echo "ERROR: Dummy.pm4n not found: $DUMMY" >&2; exit 1; }
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BOARD_NAME="$(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 ----
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log "=== Exporting Gerbers ==="
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log " Board: $PCB_FILE"
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log " Layers: $LAYERS"
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kicad-cli pcb export gerbers \
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--output "$GERBERS_DIR" \
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--layers "$LAYERS" \
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--no-protel-ext \
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--subtract-soldermask \
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--no-netlist \
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"$PCB_FILE" \
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2>/dev/null
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log ""
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# ---- Step 2: convert to pm4n ----
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log "=== Converting 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: Gerber not found for layer $LAYER (expected: $GBR_FILE)" >&2
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continue
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fi
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OUT_PM4N="$PM4N_DIR/${BOARD_NAME}-${LAYER_STEM}.pm4n"
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FLAGS=()
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contains "$INVERT_LAYERS" "$LAYER" && FLAGS+=(--invert)
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contains "$MIRROR_LAYERS" "$LAYER" && FLAGS+=(--mirror)
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[[ -n "$DPMM" ]] && FLAGS+=(--dpmm "$DPMM")
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[[ -n "$POS" ]] && FLAGS+=(--pos "$POS")
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[[ -n "$PREVIEW_SCALE" ]] && FLAGS+=(--preview-scale "$PREVIEW_SCALE")
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[[ $VERBOSE -eq 1 ]] && FLAGS+=(--verbose)
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log " $LAYER → $OUT_PM4N [${FLAGS[*]:-} 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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done
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log "=== Done ==="
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