ESP32 based project

board/gerber/.gitignore

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+*.gbr
+*.drl
+*.ngc
+*.png
+*.bakT*

board/gerber/ReadMe.md

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+# Export Gerber
+The exported gerber files can be used to convert it into gcode for a mill
+## Export settings
+
+Open the board in KiCad and select:
+File | Plot
+### General
+Plot format: Gerber
+### Include Layer
+Include the Layer ***B.Cu*** and ***Edge.Cuts***
+[ ] Plot border and title block
+[x] Plot footprint values
+[x] Plot footprint reference
+[ ] Force plotting of invisible values / refs
+[x] Exclude PCB edge layer from other layers
+[x] Exclude pads from silk screen
+[ ] Do not tent vias
+[x] Use auxilary axis as origin
+Drill marks: None
+Scaling: 1:1
+Plot mode: Filled
+Default line width: 0.1mm
+[ ] Mirrored plot
+[ ] Negated plot
+### Gerber Options 
+[ ] Use Protel filename extensions
+[ ] Generate Geber job file
+[ ] Substract soldermask from silkscreen
+Coordinate format: 4.6, unit mm
+[ ] Use extended X2 format
+[ ] Include netlist attributes
+### Doing
+Click
+* **Plot**
+* **Generate Drill Files ...**
+ * [x] PTH and NPTH in a single file
+ * Map File Format: DXF
+ * Drill Units: mm
+ * Drill Origin: Auxilary axis

board/gerber/generatePCB.sh

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+#!/bin/bash
+# Needs the tool pcb2gcode
+# Was documented at: http://marcuswolschon.blogspot.de/2013/02/milling-pcbs-using-gerber2gcode.html
+
+MILLSPEED=600
+MILLFEED=200
+PROJECT=PlantCtrlESP32
+pcb2gcode --back $PROJECT-B_Cu.gbr --metric --zsafe 5 --zchange 10 --zwork -0.01 --offset 0.02 --mill-feed $MILLFEED --mill-speed $MILLSPEED --drill $PROJECT.drl --zdrill -2.5 --drill-feed $MILLFEED --drill-speed $MILLSPEED --basename $PROJECT
+
+if [ "$1" ==  "C3MA" ]; then
+	#update all Tools higher and equal to T4 in generated file
+	for i in 4 5 6 7; do
+		echo "Replace T$i"
+		sed -i.bakT$i "s/T${i}/T3/" ${PROJECT}_drill.ngc
+	done
+fi