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Type: Posts; User: DouglasJRizzo

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  1. Replies
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    For rigid tapping on the Doosan, a standard...

    For rigid tapping on the Doosan, a standard collet chuck and collet should suffice. Tension/Compression holders really only factor into float tapping.
    Remember that the syntax for tapping is...
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    Doosan still has parts for that old gal. She's...

    Doosan still has parts for that old gal. She's about 9k or so, but I'm sure someone could look up the specs. Fanuc still has parts for the 6T. It's a little involved to program as it uses G50 for the...
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    I used to work for Doosan and the Puma box way...

    I used to work for Doosan and the Puma box way line up would work. Sounds like a Puma 4100 or 5100 two axis would be ideal. Plenty of horsepower, torque and rigidity for tough materials and...
  4. In all the classes I teach, it's always - ALWAYS...

    In all the classes I teach, it's always - ALWAYS -

    1)Single Block
    2)Rapid Down
    3)Check or Dist to go display.
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    Poll: The city water supply has much to do with it. One...

    The city water supply has much to do with it. One shop I was in, the water was so hard, we called it "rock juice" - the coolants were constantly going bad, sumps always had to be cleaned, even the...
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    I think Fanuc offers a 0iT-D or 0iT-F retrofit...

    I think Fanuc offers a 0iT-D or 0iT-F retrofit package with motors, drives, control, etc. Might be worth looking at as the programming would be very close.
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    Having been in your shoes, I can tell you that...

    Having been in your shoes, I can tell you that there are LOTS of things to spend money on. ;) Have you addressed rent and space? When I started I made sure that all my major equipment was paid for in...
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    I'm at the $70 to $80 rate depending on the job...

    I'm at the $70 to $80 rate depending on the job coming in.
  9. I would've thought the same. Glad it worked out.

    I would've thought the same. Glad it worked out.
  10. G76 can get within about .005" safely.

    G76 can get within about .005" safely.
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    My preference has always been the 8k spindle, for...

    My preference has always been the 8k spindle, for torque and smoothness.
    The 15k we had in the showroom, when I was there, seemed to be pretty quiet.
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    The DNM 500 you had was a great machine. The new...

    The DNM 500 you had was a great machine. The new 5700 is the evolutionary change. So, what you have with the 5700 is a little more travel in X and Y, larger roller guideways, better sheet metal for...
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    For cross hole peck drilling try G87.

    For cross hole peck drilling try G87.
  14. Thread: Doosan

    by DouglasJRizzo
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    4,777

    G coder You're correct, Andy Mac is sales. For...

    G coder

    You're correct, Andy Mac is sales. For service, it'd be Michael An or Darryl Hardt.
    Ellison has a tidal wave of problems right now. They laid off a huge amount of help a while back and...
  15. Thread: Doosan

    by DouglasJRizzo
    Replies
    36
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    4,777

    Just to clear things up - Doosan IS "Daewoo" -...

    Just to clear things up - Doosan IS "Daewoo" - the Doosan empire bought the Daewoo machine tool division when Daewoo went into bankruptcy. They had wanted it for a long time.
  16. Machining some 316 Stainless Steel castings. Nice...

    Machining some 316 Stainless Steel castings. Nice looking rings and a cool flange. Machined on my 1983 Okuma LB-15 with OSP-5000L CNC. 262832 262833 262834
  17. Good rugged machine with a geared headstock. Can...

    Good rugged machine with a geared headstock. Can give good accuracy too. Not fast by modern standards but pretty damn good for the day.
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    1 - I bore the jaws to "slightly" larger than...

    1 - I bore the jaws to "slightly" larger than necessary. By say, ".005"
    2 - I always cut a slight relief at the rear face of the jaw. I take a boring bar and machine the rear of the jaw, by the OD,...
  19. Thread: Doosan

    by DouglasJRizzo
    Replies
    36
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    4,777

    Sort of... Doosan - the parent company, sold...

    Sort of...

    Doosan - the parent company, sold the machine tool division to a bank, MBK, about 2-3 years ago. All of the division was sold including foundries, R&D labs, assembly, etc. The parent...
  20. Do all the indicator checks on the spindle but...

    Do all the indicator checks on the spindle but also, check the turret. If it's been knocked out of line, this can contribute to poor part quality. If it's ok, make sure the clamping is functioning...
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    Yeah, eventually you'll get someone. What...

    Yeah, eventually you'll get someone.

    What you're describing is the result of almost 30 years of pent up neglect of manufacturing. For DECADES I've seen shops close, jobs go away, or if they were...
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    I had a job where I machined thousands of 1"...

    I had a job where I machined thousands of 1" square rods of C110 copper. I used a Zirconium carbide endmill that had a funky tooth form that would shear away the copper, throwing the heat into the...
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    The KenTip drill works VERY well. I have a shop...

    The KenTip drill works VERY well. I have a shop using them in a brand new Doosan DNM 6700 drilling 4340 and it just goes through like butter. They work very well, and last a long time. Great tool...
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    There is such a thing as being asset rich and...

    There is such a thing as being asset rich and cash poor. It's common in our business. My approach has been to buy machines that I can either buy outright or keep the payments to an extent that if you...
  25. Depending on budget and capabilities needed...

    Depending on budget and capabilities needed Doosan has some great 5 axis stuff. From a low cost "4+1" VMC to a full blown huge 5 axis. Everything in between too. Pallet loaders, large magazines, full...
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