From f67f7a9a30e433c45da17c0ace32486df877bbdc Mon Sep 17 00:00:00 2001
From: Werner Almesberger <werner@openmoko.org>
Date: Tue, 1 Feb 2011 12:03:01 -0300
Subject: [PATCH] uart/cam/: the usual CAM process for cutting the PCB

---
 uart/cam/Makefile | 19 +++++++++++++
 uart/cam/mkmk     | 69 +++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 88 insertions(+)
 create mode 100644 uart/cam/Makefile
 create mode 100755 uart/cam/mkmk

diff --git a/uart/cam/Makefile b/uart/cam/Makefile
new file mode 100644
index 0000000..d414d27
--- /dev/null
+++ b/uart/cam/Makefile
@@ -0,0 +1,19 @@
+.PHONY:			all clean
+
+NAME=uart
+
+all:			Makefile.mkmk
+
+Makefile.mkmk:		mkmk ../uart.drl ../uart-PCB_Edges.gbr
+			./mkmk
+
+../uart.drl:		../uart.brd
+			pcbnew --drill `pwd`/../uart.brd
+
+../uart-PCB_Edges.gbr:	../uart.brd
+			pcbnew --plot=gerber -l PCB_Edges `pwd`/../uart.brd
+
+-include Makefile.mkmk
+
+clean::
+			rm -f Makefile.mkmk
diff --git a/uart/cam/mkmk b/uart/cam/mkmk
new file mode 100755
index 0000000..3ad788e
--- /dev/null
+++ b/uart/cam/mkmk
@@ -0,0 +1,69 @@
+#!/bin/sh
+PATH=$PATH:/home/qi/cae-tools/cameo
+PATH=$PATH:/home/moko/svn.openmoko.org/developers/werner/cncmap/gp2rml
+
+NAME=uart
+X=2
+Y=0
+
+cameo <<EOF
+mm
+
+gerber 35mil ../$NAME-PCB_Edges.gbr
+align 1 8.9mm 10.4mm	# align relative to board corner
+translate 4mm 4mm	# move to PCB zone assigned to project
+array +3mm +3mm $X $Y
+z 0 -58.9mm		# board surface (tool fully retracted)
+z 1.5mm			# slack for extending the tool
+z -0.8mm		# board thickness
+z -0.5mm		# tool extra depth
+clear
+
+excellon ../$NAME.drl
+drill 7mil 15mil	# 12.5-13.5 mil drill
+optimize
+write drill.gp
+
+remainder
+mill 25mil 0.01mm	# 35 mil endmill; pretend it is a little smaller,
+			# to compensate for tool/board deflections
+write mill.gp
+
+remainder
+empty
+
+gerber 45mil ../$NAME-PCB_Edges.gbr	# 35 mil endmill, -10 mil deflection
+offset
+append mill.gp
+EOF
+
+gp2rml 2 0.5 0.5 mill.gp >mill.rml
+gp2rml 2 0.1 0.5 drill.gp >drill.rml
+
+
+cat <<EOF >Makefile.mkmk
+SPOOL=/home/moko/svn.openmoko.org/developers/werner/cncmap/spool/spool
+CNGT=/home/qi/cae-tools/cngt/cngt
+
+.PHONY:		mill drill cng plot dplot
+
+mill:
+		PORT=/dev/ttyUSB0 \$(SPOOL) mill.rml
+
+drill:
+		PORT=/dev/ttyUSB0 \$(SPOOL) drill.rml
+
+cng:
+		\$(CNGT) -57.4 20 mill.gp
+
+plot:
+		echo 'plot "drill.gp" with points, "mill.gp" with lines' | \\
+		  gnuplot -persist
+
+dplot:
+		echo 'plot "< sed /^\$\$/d drill.gp" with linespoints' | \\
+		  gnuplot -persist
+
+clean::
+		rm -f mill.gp mill.rml drill.gp drill.rml
+EOF