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  1. Replies
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    The reason for the higher end controls was not...

    The reason for the higher end controls was not due to reliability concerns, it was because we were buying higher performing, premium CNCs (predominantly Makinos) rather than commodity level machines.
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    Certainly worth trying. Unplug the power to the...

    Certainly worth trying. Unplug the power to the CRT and CNC before you power it up with the cap installed. Measure the DC voltage with the cap in place and make sure that filtering the ripple does...
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    The M300 series certainly fell into that category.

    The M300 series certainly fell into that category.
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    I downloaded it and had a quick look over. Just...

    I downloaded it and had a quick look over. Just enough to understand their circuit continuation labeling scheme and get a gist of their organization. I'll spend a bit more time on it tonight.
    ...
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    This may take more than is possible in a...

    This may take more than is possible in a forum.....

    To start, a Fanuc 6T model B is a lathe control yet you say you have a mill. If you are looking at a Fanuc 6T model B manual and trying to...
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    I don't know that the questions can be answered...

    I don't know that the questions can be answered with any accuracy without knowing the alloy and condition.

    Coolant use won't cause an issue with any alloy. Not using coolant will work with some...
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    That's a machine builder choice that I have never...

    That's a machine builder choice that I have never seen before. I'm scratching my head at the thought behind putting that in the ladder.
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    I have a Meldas 50 but much is the same for the...

    I have a Meldas 50 but much is the same for the 60 series. You need to reload your parameters from a backup copy. If you look at the alarm in the Diag screen there may be some additional...
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    I would scope all the power supplies. Some Fanuc...

    I would scope all the power supplies. Some Fanuc models power the control from an external 24V supply and the internal module is a DC-DC conversion circuit to create the other voltages needed. ...
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    Spent a bit more time looking at the hardware...

    Spent a bit more time looking at the hardware connection manual for the 0iB series. 24VDC is input to the CNC at connector CP1 and output at connector CP2. The connection diagram example shows this...
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    Locking out feed or spindle override control is...

    Locking out feed or spindle override control is determined by the machine builders ladder, not Mitsu. Most builders implement that as an M-code, but having it be a setting switch or softkey is just...
  12. I've only ever used lightly crowned rollers. ...

    I've only ever used lightly crowned rollers. Some jobs, we would put little "brush guards" mounted to the support arms to prevent chips getting caught between part and roller. That helped with part...
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    Having multiple power supplies is so common as to...

    Having multiple power supplies is so common as to be universal in CNC machines. The Fanuc CNC power supply is usually only used to power the control itself and sometimes input devices (limit...
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    I thought it meant that if I walked into the...

    I thought it meant that if I walked into the interview with a strip of tape on my forehead that said "NX Programmer", I'd be hired on sight!
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    The engraving macro I have does let one scale the...

    The engraving macro I have does let one scale the character height, but requires the control to have G51 scaling option. It was specific to some aerospace applications for transferring 8 or 9 digit...
  16. I wonder how many times I wanted to take out of a...

    I wonder how many times I wanted to take out of a programmers pay the costs of leaving loose slugs? I've seen broken tools, broken windows, damaged chip conveyors, etc. all from not restraining or...
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    I dug up a copy of the 0i-B connection manual and...

    I dug up a copy of the 0i-B connection manual and found that the CRT can be powered from the CNC or an external power supply at the machine builders choice. Do you know which way your machine is set...
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    With many controls, rigid tapping with the main...

    With many controls, rigid tapping with the main spindle of a lathe has been around for over 25 years. Whether or not the ability is spec'd and implemented though is at the machine builders choice.
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    Since G47 is a Haas specific function, your...

    Since G47 is a Haas specific function, your thought that it is a Haas issue is correct.

    There are many engraving macros around for Fanuc where the number to be engraved can be stored in a...
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    Yep. I have seen a couple machines put in...

    Yep. I have seen a couple machines put in through a window to address width issues of doors. Since windows are often much wider than a door and the space under the window frame is almost always...
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    My 21i manuals are for an A model. You must have...

    My 21i manuals are for an A model. You must have a B or later because the board part number you posted is not listed in my book. I did look at some 21iB info I have and it did mention FROM and SRAM...
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    That thought never occurred to me. It is...

    That thought never occurred to me. It is possible that new boards/boot firmware could have some kind of password or even hardware "protection".

    One thing I did see from the manual is that the...
  23. If any here did, they probably threw up some. ...

    If any here did, they probably threw up some.

    Discussion of a homeshop "CNC" would be much better taken to CNC zone forum. We hope to keep the bar a bit higher here.
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    Ahhhh...., that multiple attempts and finally...

    Ahhhh...., that multiple attempts and finally will run may be a clue. Have you put an oscilloscope on the power? I've seen failing power supplies show a decent voltage but have too much noise or...
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    I've not seen this, but it sounds deeper than a...

    I've not seen this, but it sounds deeper than a failed FROM or SRAM module. There must be a boot load firmware that runs when the control is started normally or in maintenance mode. I'm guessing,...
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