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Caliper Z-Axis DRO for Millrite

Discussion in 'BURKE-US MACHINE TOOL & BARKER MACHINES' started by wildo, May 18, 2017.

  1. wildo

    wildo Active Member Active Member

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    It took me a couple days to get this done, and rather uncharacteristically I took almost no photos of the guts of the project. I picked up a 4" digital caliper from Harbor Freight and converted it to use as a DRO on the Z axis on my Millrite. The project really turned out well and I think this will be a much needed addition.

    To borrow a photo from Mike Amick's webpage, I modified the quill feed connector nut by removing the needle and grinding down that nub that the needle fits into. There was a grub screw that held the needle in place. All of this was ground away.

    [​IMG]

    The resulting flat area was drilled and threaded 6-32 and I machined a piece of aluminum roughly this shape to bolt onto the connector nut.

    [​IMG]

    [​IMG]

    The machine was reassembled (actually- I had to take it apart multiple times to adjust and tweak the fit) and the caliper was screwed to the newly machined piece. I did modify the caliper by grinding off the unneeded jaws. I drilled the two screw holes using a carbide end mill which made quick work of it.

    [​IMG]

    I'm very pleased with how it turned out, and especially with how well it works. Here is a video I shot for some friends on Facebook, but I'll share here too. Check it out here:
     
    mikey, tweinke and Bob Korves like this.

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