I did my first CNC milled PWB today. It came out great and far
exceeding my expectations. The board is a little 3" x 2" solar panel
controller for solar battery charger. The two layer board was designed
in DipTrace then converted to island milling G-Code by LineGrinder and
cut on my Mach3 CNC converted Bridgeport mill. The accuracy of the
milling was amazing. I was able to drill .022" dia via holes and not
get any break-out of the .040" dia via pads on the far side.
My bigest limitation is the spindle speed of the BP, at 6800 RPM and I
really need to get some sort of high speed spindle.
I postes some pictures on my Picasa web album:
Pictures of the board:
https://picasaweb.google.com/cschaffter/PCB_Stuff?feat=directlink<
https://picasaweb.google.com/cschaffter/PCB_Stuff?feat=directlink>
Craig
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