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Type: Posts; User: cnctoolcat

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  1. Replies
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    If the sound of your spindle doesn’t change after...

    If the sound of your spindle doesn’t change after a crash, it should be OK.

    Sometimes you will get a louder spindle after a crash, but this doesn’t mean it won’t make good parts the same as it did...
  2. I have successfully rebuilt four different CNC...

    I have successfully rebuilt four different CNC lathe spindles here at the shop over the years. (Belt driven, I would never tackle an integral spindle rebuild in the shop).

    Although, I never...
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    CNCToolCat's Cat-House

    I didn’t realize it, but it had been almost four years since I got this QT28 into service!

    This machine runs 4140HT hot-roll bar exclusively, and the hot-roll scale builds up pretty bad.

    We’re...
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    Public service announcement: Check your...

    Public service announcement:

    Check your coolant tanks! :ack2::o

    https://uploads.tapatalk-cdn.com/20200213/fef6f2cc83ff97e1f52fd0a6c91e9e08.jpg
    ...
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    UPS is trying to compete with the USPS for...

    UPS is trying to compete with the USPS for smaller packages.

    Of course considering the USPS lost about 8 billion dollars last year, thanks to the US taxpayer (and future taxpayers), shipping...
  6. Thread: Apogee

    by cnctoolcat
    Replies
    49
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    9,249

    Apogee

    Sometimes I will rough-cut the chuck jaws in the mill (one at a time), to remove most of the stock.

    Then re-mount in the lathe for finishing.

    Also, use a left-handed turning tool (insert “up”)...
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    I believe the FX727 board contains the PLC...

    I believe the FX727 board contains the PLC programming and ladder, as it too has a battery.

    Good you got it powered up!

    Sometimes when entering the parameters, you might encounter some that...
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    Natural gas really is “dirt cheap” these days. ...

    Natural gas really is “dirt cheap” these days.

    If there is any way possible, that’s the only true economical, clean, easy way to heat a shop.

    My shop is insulated 4K sq. ft. metal building, we...
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    This could be a handy thread! I will chime in...

    This could be a handy thread!

    I will chime in later about what I know about the FR-SE and -SF drives. I have worked on them for a couple decades now, with some success and some failures....:o
    ...
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    I forgot to mention, later versions of the T-2...

    I forgot to mention, later versions of the T-2 came with only one main memory board, a FX884.

    (Earlier versions had two, the FX784-8 and FX784-9)

    I have read where someone successfully used a...
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    Check all your control cards are seating well ---...

    Check all your control cards are seating well --- this is tricky, as you can think they're all seated, when one may not be. I like to pop them in/out to help clean the contacts too.

    The...
  12. Have you found the service manual online for the...

    Have you found the service manual online for the FR-SE yet?

    The DK hybrids can go bad (and related diodes, resistors, etc.), base transistor(s)...

    You need accurate voltages from the power...
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    Phil, these videos are great, thanks so much for...

    Phil, these videos are great, thanks so much for taking the time to do them!

    Companies (and schools) that run Mazaks can use these excellent videos for training.

    I've been a Mazatrol guy since...
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    Protohawk Machine

    Toyota makes a great forklift.

    My 7FGCU25 (5k lift) has almost 26,000 hours! And just runs and purrs like a kitten....doesn’t burn a drop of oil. The 4Y motor is just legendary.

    All I’ve done...
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    No WONDER it stinks in China! A primary...

    No WONDER it stinks in China!

    A primary difference between the economic rise of Japan versus China is that Japan is a physically small country, with virtually no natural resources, and a...
  16. One of these machines might be right up Ox's...

    One of these machines might be right up Ox's alley?? ;)
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    Most likely your FR-SF spindle drive is bad. ...

    Most likely your FR-SF spindle drive is bad.

    And the most common failure point on the FR-SF is the DC power supply --- the large black box at the top.

    Also look close for signs of damage on...
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    New slab looks great Wheelie! Typical concrete...

    New slab looks great Wheelie!

    Typical concrete contractor though...looks as if they didn't do a very good job of lifting the rebar during the pour. (Defeats the purpose if it remains laying on...
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    Isn't this the premise of the Dodge "Hemi"...

    Isn't this the premise of the Dodge "Hemi" motor...??
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    An inherent part of the Chinese business culture...

    An inherent part of the Chinese business culture is to "cheat". They actually consider it a smart and savvy way to conduct business, they have no ethical conundrum about it whatsoever.

    And the...
  21. For the turret-rotation speed reduction, I use a...

    For the turret-rotation speed reduction, I use a standard Parker Hannifin adjustable hydraulic flow-control valve. You can source one via MSC, McMaster Carr, or possibly Ebay.

    On edit, here's a...
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    10Hp screw compressor for small shop?

    If the neighbors aren’t too close, putting the compressor outside under a shed is a solution to reduce noise.

    I’ve had my Quincy piston compressor outside in the Virginia summers and winters with...
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    Running aluminum isn’t necessarily easy-peasy on...

    Running aluminum isn’t necessarily easy-peasy on a machine, as the spindle is usually running maxed-out on RPM’s (and thus often horsepower).

    This ~can~ shorten the life of the spindle bearings...
  24. Price check and questions on a mid-late 90's QT20

    For the T/M Plus control, the spindle accel/decel parameter is SP19.

    The SP parameters are accessed in “privileged” mode (the 1131 trick...).

    On edit: also pretty sure you have to power the...
  25. Sounds like your machine is definitely pre-wired...

    Sounds like your machine is definitely pre-wired for the 4th axis, and if so, your parameters should be set to go.

    You will need a rotary with Mitsubishi servo motor and encoder, for seamless...
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