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« on: March 05, 2008, 12:11:58 PM »
Hey RC,
  I have lots of ideas on R8 tool changers. Will try to make you some drawings. One way Poppabear suggested in Galesburg that sounded good for the draw bar was this. Get a large collet, 7/8 or so. Make toolholders with a 7/8 shaft. Put a nut on the drawbar, then the collet. once you have the length figured out, use the nut as a jam nut on the collet and locktite. Can use an air cylinder to actuate the drawbar. Since you will now be going in a collet, the key is of no concern or orentation. Can make a disk type tool holder to hold the tools.
Brett