atusb/cam2/mkmk: new-style CAM script

Run ./mkmk to generate toolpaths and a Makefile. Then
make cng	changes tools (used for drill and mill)
make drill	does the drilling
make mill	does the milling

atusb/cam2/mkmk

@@ -0,0 +1,51 @@
+#!/bin/sh
+PATH=$PATH:/home/qi/cae-tools/cameo
+PATH=$PATH:/home/moko/svn.openmoko.org/developers/werner/cncmap/gp2rml
+
+cameo <<EOF
+mm
+
+gerber 35mil ../atusb-PCB_Edges.gbr
+align 1 8.1mm 11.2mm	# align relative to board corner
+translate 25mm 2mm	# move to PCB zone assigned to project
+translate 2mm 17mm	# move a bit further
+array 19mm 36mm 1 0	# skip over previous boards
+z 0 -56.1mm		# board surface
+z -0.8mm		# board thickness
+z -0.5mm		# tool extra depth
+offset
+write mill.gp
+clear
+
+excellon ../atusb.drl
+drill 7mil 15mil	# 12.5-13.5 mil drill
+write drill.gp
+
+remainder
+mill 35mil 0.01mm	# 35 mil endmill
+append mill.gp
+
+remainder
+empty
+EOF
+
+
+gp2rml 2 0.5 0.5 mill.gp >mill.rml
+gp2rml 2 0.1 0.5 drill.gp >drill.rml
+
+
+cat <<EOF >Makefile
+SPOOL=/home/moko/svn.openmoko.org/developers/werner/cncmap/spool/spool
+CNGT=/home/qi/cae-tools/cngt/cngt
+
+.PHONY:		mill drill cng
+
+mill:
+		PORT=/dev/ttyUSB0 \$(SPOOL) mill.rml
+
+drill:
+		PORT=/dev/ttyUSB0 \$(SPOOL) drill.rml
+
+cng:
+		\$(CNGT) -56.1 20 50 39
+EOF