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  1. This hits on all but #5 and even there not far...

    This hits on all but #5 and even there not far from it. Hits #1 in a big way. It is over 30x20 but is pretty huge.

    Kuraki KV-2000, Vertical CNC Machine - tools - by owner - sale
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    My money is on a missing N10 near the program top.

    My money is on a missing N10 near the program top.
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    Since you have a PMM, I'm gonna guess that this...

    Since you have a PMM, I'm gonna guess that this alarm is on a beta drive. Here is the text from my documentation about alarm P on a beta drive. I've never come across this alarm so just going from...
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    Look at parameter 74. If your machine is set up...

    Look at parameter 74. If your machine is set up to use soft limits that will be your Z negative limit from the machine zero return point. If your machine is built with metric screws (most likely)...
  5. The intermittent disconnect alarm would have me...

    The intermittent disconnect alarm would have me looking at cables and connectors too.
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    IMO, CNC machine builders all have produced a few...

    IMO, CNC machine builders all have produced a few lemons. Even the best builders. Where the majority of a particular model are good running, solid machines, there is the odd one that for some...
  7. The switch turns on to start the decel. Then,...

    The switch turns on to start the decel. Then, after the switch turns off again, the control starts looking for the index pulse from the encoder. If the switch is sticky or failing internally the...
  8. Most likely a problem with the zero return decel...

    Most likely a problem with the zero return decel limit switch.
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    Similar to what I posted earlier....The taper...

    Similar to what I posted earlier....The taper size does not fully determine how well a spindle is going to perform. Some 50 tapers have ~2000lb of retention force while some others have over 4000lbs.
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    I'm not sure about the Makino F series machines,...

    I'm not sure about the Makino F series machines, but their MAG series with 32k rpm HSK63 spindles can rough more than 350 cubic inches per minute in aluminum. That's "hogging" in my book.
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    There is more to a spindle than the toolholder...

    There is more to a spindle than the toolholder interface. I have seen a big brand machine with a cat 50 spindle that was not as rigid as the cat 40 on a different big brand. machine nearby. Bearing...
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    Yep, I did. Boeing was notified in Sept 2018...

    Yep, I did. Boeing was notified in Sept 2018 that parts failed testing. While they did build planes with the affected parts before they were notified, they continued to build planes until May 2019...
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    Try what again? This is what I am referring...

    Try what again? This is what I am referring to.....

    FAA seeks $3.9 million fine from Boeing for defective parts on 737 NG planes - Reuters
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    The fine is because Boeing went ahead and used...

    The fine is because Boeing went ahead and used the parts despite knowing they were defective. IMO, kind of illustrates that "aerospace" does not indicate a higher level of performance at any level...
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    That is a huge part of a production mentality. ...

    That is a huge part of a production mentality.

    IME, it is shops that only use their machine(s) for the occasional prototype build or rework/mod job that do little PM work.
  16. That's a super generous offer!

    That's a super generous offer!
  17. It's a 9 pin PC to 25 pin CNC cable set up to use...

    It's a 9 pin PC to 25 pin CNC cable set up to use hardware handshaking.

    For uploads and downloads with a CNC control's memory a 3 wire cable and software handshaking usually works fine. For...
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    Yep, I've seen machines with remote servo drives...

    Yep, I've seen machines with remote servo drives for toolchanger and magazine operation where the APC batteries were in the sub electrical cabinet with the drives. Then there are some cell setups...
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    You had some other issue besides thermal then. ...

    You had some other issue besides thermal then. Flimsy design? Who knows? It was not thermal.
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    Hard to figure how. Especially if a builder...

    Hard to figure how. Especially if a builder chooses to do their own battery system. Even with Fanuc parts like the remote battery box. The machine builder determines where that box would be...
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    Terminology can be a bit messy here. APC can...

    Terminology can be a bit messy here. APC can denote Absolute Pulse Coder and also Automatic Pallet Changer. In the OP's case, I am sure all these batteries are APC batteries for the pulse coders.
    ...
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    Hard to imagine an aluminum bracket the size of a...

    Hard to imagine an aluminum bracket the size of a mount for a tool probe to change that much. Ever look up the thermal coefficient of expansion of aluminum?
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    There are 3 batteries in this pic. They are the...

    There are 3 batteries in this pic. They are the modules with the red and black wires attached.

    The Beta drive with the label APC could very well be for your pallet changer. Beta drives are...
  24. Something to consider.... Doosan builds a...

    Something to consider....

    Doosan builds a wide variety of machines from this small one to quite large machines. Brother specializes in small machines. I suspect that a specialist builder will...
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    Does your shop have such large temperature swings...

    Does your shop have such large temperature swings to affect the repeatability of measurements? If you do, that might be an area to explore getting under control. It's gotta be hard being a world...
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