need a quote/ cnc indexing

Anybody interested in doing four pcs. of alum. 1" dia.,six" lg with a two thread per inch auger groove? Basicly, take a 1" alum round and drop a 3/8
endmill .187" deep to leave a core 5/8" in dia in the center, then cut a two thread per inch lead down the six inch length. The alum round can be turned to 5/8 dia for and inch or to for holding in collet. The auger web that is left is around 1/8 wide. Make sense? Dixon
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Dixon wrote:

Dixon:
    Make sense? I don't know, is this sort of what you had in mind? Neat little part to program, if so.
http://i233.photobucket.com/albums/ee126/BottleBob_photo/Auger/Auger.jpg
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Looks real close. Right now I have a prototype made from plastic with stereo lithography and it look the same. I could probably single point it on a manual lathe, but it would be a pain. Actually, the thread depth is differant on two of the pcs. The center shaft is 5/8 on two pcs. and 1/2 on the other two. Would this be best done on a cnc lathe or mill with indexing ability? If someone is interested in doing them I could ups the proto to you. Thanks Dixon
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Dixon wrote: I could probably single point it on a

You could. I'd set the compound parallel to the ways and use a narrow tool to cut the groove. Start in the center of the groove then advance and retract the compound (on separate passes) to widen it as needed. Randy
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Randy, the lathe that I would have to use to get 2 TPI pitch has a 28" four jaw chuck. The piece is 1" dia and 6" long. I'm looking to farm it out if possible. If no one is interested, I'll probably try single point, but I think we're talking a LOT of passes. Dixon
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Dixon wrote:

Dixon:
    I programmed it using a Fourth axis rotary. The toolpath was something like an angled 24" long line extending down in the Y axis and then it was "wrapped" around the part when rendered.     I just did it as an mental exercise, since I don't often do this type of thing. But anyone with a Fourth axis should be able to make your parts without a lot of grief, (depending on the accuracy/tolerances you need).
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Give me a call, I love 4th ax work
www.reidmachine.com
Darrell
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How many parts do you need? Tolerances? Piece of cake. E-mail me.
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