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    Logan AC-210 Production Collet Closer

    Yes, the levers do lock the collet against the springs and prevent it from moving outward but when you let go of the handle, the only clamping force on the collet appears to be the compression spring force which is quite small. The springs are only there to keep the levers from disengaging...
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    Logan AC-210 Production Collet Closer

    Forgot to attach the cross section and overview
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    Logan AC-210 Production Collet Closer

    My 1945 Logan 200 lathe came with a Logan AC-210 Production Collet Closer (see attached). It's a push type that supposedly allows 5/8 through stock but some of the collets that came with the machine go up to 3/4. After fiddling quite a bit, the seller was able to demonstrate that it worked but...
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    Weird Collets

    Makes sense.
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    Weird Collets

    Thanks. Interesting that the closer can work while the spindle is rotating. Not sure why. Is it necessary or does it work better that way? We did lock in a collet statically with the closer but it was not easy getting everything to align so the retention pawls would engage.
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    Weird Collets

    Just bought a 1945 Logan 200 lathe. Solid and smooth, it came with a strange collet system. The closer mounts to the bed and levers the collets into the chuck where they're pulled into place by three pivoting pawls. The Logan 200 has a spindle center hole that can accommodate a 3/4" diameter...
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