Chips!


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Thread: Chips!

  1. #1
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    Default Chips!

    I have been making chips for some time now, but just completed a fantastic project. If you have not made the power drawbar from homeshopaccessories, you don't know what you're missing. And that is 5 second tool changes.

    The plans were first rate. I modified mine somwhat by incorporating a manifold for the motor and cylinder air supply...I didn't like to solder these connections. I also included a reciever mounted on the spindle for socket allignment to the drawbar.

    It works great and tool changes are no longer a pain in the ***.

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    Noncarborundum Illigitimus


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    Hey there Bo haven't seen your handle here in quite a while. changer looks good, and glad to hear ya makin chips. They come with Salsa ?

    Don
    IH v-3 early model owner


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    Sorry, no salsa. Just a lot of complaining from my wife when I track chips into the house! I hope to have the mill in an enclosure in the next couple of months. But I do love 5 second tool changes.

    No, I haven't posted in a while. I own my own business and recently started another one, both in the high tech area. No time for much else other than work and sleep.

    Noncarborundum Illigitimus


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    Excellent post. I like the way you set that up, very nice.



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    Gold Member BobWarfield's Avatar
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    Nice one, Bohica. I like the receiver mod. Does it just drop into place with a set screw? Are you using an inner bushing to keep the drawbar centered?

    Without a receiver, my power drawbar (same style) chews the head of the drawbar. I wind up having to pull it apart, face the drawbar nut, and reassemble about once every 18 months, which is a nuisance. I hear there are hardened drawbars out there, but a receiver might also cure my problems.

    BTW, fellas, one of those little Harbor Freight butterfly impact wrenches makes tool changes real fast even if just using it handheld. I have a powered drawbar like this one on one of my 2 IH mills (Love it!), but haven't got around to making a second one. Meanwhile, I got 2 more of the little impact wrenches last time they were on sale (handy for other uses too).

    I want to make up a little air system on the mill so I can plug in one connection and have a hand held air nozzle, drawbar, air for coolant mister, and so on.

    Cheers,

    BW



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    Thanks Bob. The reciever is mounted on the drawbar with 2 set screws, 180 degrees apart. The inside of the receiver is tapered 13 degrees, which aligns the socket as it comes down. I left .010 side clearance between the socket and reciever at the bottom.

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    Noncarborundum Illigitimus


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