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Type: Posts; User: cnctoolcat

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    Poll: For general purpose use on the typical vmc,...

    For general purpose use on the typical vmc, consider getting reverse vices.

    Your back, and the backs of your employees, will thank you as the years go by.

    Plus, on a used vmc, reverse vices...
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    Seattle, Are You Still Alive?

    I remember being in middle and high school in the late ‘70’s/early ‘80’s, and let me tell you, the paddle was a deterrent!

    Each teacher seemed to have a custom model — some with holes, some thick,...
  3. I have ran a lot of parts this way from barstock....

    I have ran a lot of parts this way from barstock.

    To "back thread" I use the cut-off tool to make a groove at the end of the part, where it cuts off later. This groove's width/depth is sized to...
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    Ox's Shop '08

    Don’t forget about using shop floor mats to help your feet and back.

    Ollie’s discount store has real nice 3x5 firm-rubber work mats with drainage holes and tapered edges for about $26 each.

    I...
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    Help identify draw tube thread size

    Every CNC lathe I’ve seen has metric threads on the draw tube.

    Since you’re saying 16TPI, that would be a thread pitch of 1.5mm.

    The outside diameter should be an even metric size: 70mm, 75mm,...
  6. Cuttin' threads away from the chuck to a shoulder...................

    A trick to measure threads behind a shoulder is to measure the approximate pitch diameter with the thin points of calipers.

    I use a reference thread to find what “measurement” the calipers give,...
  7. Mazak's turning centers mysterious nomenclature "Nexus"... etc.... ??

    Mazak certainly goes overboard with their machine nomenclatures — marketing BS at its finest.

    “Nexus” was just marketing mumbo-jumbo, started when Mazak began using Windows and hard drives on...
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    Kyocera has on online store, check it out. They...

    Kyocera has on online store, check it out. They often have inserts on closeout for $3-$4 each.

    No affiliation, just passing along a little gem I found a while back.

    ToolCat
  9. If you have old Yaskawa CACR ac drives in your machine...

    Great job!

    I always replace the electrolytic caps on a drive/power supply that is acting up.

    Older caps may not be leaking, and may show good capacitance, but their ESR (electric static...
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    WTB 2005-ish or Newer CNC Lathe

    Yes, some of the 80’s/90’s Mazak QT15/20’s are the “big bore” models.

    These have the A2-8 spindle, and can swallow a 2-3/4” bar through the draw tube.

    The big bore versions were known as the...
  11. The C-axis brake is hydraulic? Would explain...

    The C-axis brake is hydraulic?

    Would explain the oil lines....
  12. When the powers that be demand the lowest price...

    When the powers that be demand the lowest price possible, hand over the PO to the Chinamen....
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    Why the 3" spindle bore requirement? That is...

    Why the 3" spindle bore requirement? That is going to put you in a much higher price-range for used.

    The 8"/10" chuck Mazak QT15/QT20 has a 2" through-draw tube bore, and is probably the most...
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    jealous shop floor supervisor?

    I agree with the “try to be nice approach” as a first tactic.

    But I don’t necessarily agree with bailing on the job to look elsewhere.

    I wouldn’t let him force me out of the job, especially if...
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    That machine sure doesn’t look like it’s been in...

    That machine sure doesn’t look like it’s been in deep water.

    Really clean looking around and below the spindle, and on the inside of the machine.

    ToolCat
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    Toyota makes a good forklift. Often the...

    Toyota makes a good forklift.

    Often the Toyotas will have a lot of hours (popular in the lease fleets), but if they've been halfway maintained and not abused, the hours don't hurt them.

    ...
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    At this point, just keep at it, the spindle will...

    At this point, just keep at it, the spindle will come out the front end.

    Check EBay for new-old-stock replacement bearings. The front roller is the least expensive, not sure if I would reuse it....
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    Like all corporations, Boeing's ultimate mission...

    Like all corporations, Boeing's ultimate mission is to make profit for the shareholders....not to provide as many high-paying jobs as possible.

    There's a reason Boeing has been sub-contracting out...
  19. On a related note, what is it about Hyster...

    On a related note, what is it about Hyster forklifts that makes them so compact?

    In the 4k-10k pound size range, the later-generation Hyster forklifts look about 2/3 the size of the competition...
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    For the $3k price range, look for a ZTR with...

    For the $3k price range, look for a ZTR with Kawasaki motor, if possible. Kohler and Briggs/variants can be hit or miss...

    All the consumer-grade ZTR’s use the same wheel motors, so the primary...
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    They should be? MV2 is "Mazatrol Vertical 2"......

    They should be? MV2 is "Mazatrol Vertical 2"...

    YM is "Yamazak Milling"

    Like a lot of things diagnosing these old gals, it's a crap shoot --- but what else you gonna do?

    ToolCat
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    They don’t call me the ToolCat for nothing,...

    They don’t call me the ToolCat for nothing, brought this little stray home last week:

    https://uploads.tapatalk-cdn.com/20200517/35f35375322f41a50547b51a12662a93.jpg

    She was living in an old...
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    Check Ebay for your FX784's...look for YM2, or...

    Check Ebay for your FX784's...look for YM2, or MV2 on the chips for mills.

    ToolCat
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    The FX727, FX784-8 and -9, and the FX884...

    The FX727, FX784-8 and -9, and the FX884 (replaces the 784-8 and -9) are valuable boards to have if you're running T2/T3.

    ToolCat
  25. I know it kinda defeats the purpose of a Brother,...

    I know it kinda defeats the purpose of a Brother, but in a pinch you can slow the accel/decel rates of the spindle a bit.

    Makes it much easier on the drive...

    ToolCat
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