I found the URL for the drawing John Blacet had posted as an example of his mechanical faceplate grid. The URL is: http://www.blacet.com/FPtyp.jpg This was posted on the public Synth-DIY forum, and so far as I know passing the URL along is permissible. I certainly would never do anything to deliberately offend John Blacet, who is a good friend.
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Mechanical Drawing of Blacet Faceplates
2007-03-12 by Grant Richter