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Type: Posts; User: rsfairman

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  1. Replies
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    Re: DNC/Drip Feed

    Charles, thanks for these links. I read them (and so many more!). At this point, I've spent far too much time messing around with this. Either there's something arcane that I need to do to use DNC or...
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    Re: DNC/Drip Feed

    Part of the problem is that I do not have the correct manual from the manufacturer. I have several FANUC manuals, but no manual for this particular machine.

    I'm not sure what "tape mode" means....
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    DNC/Drip Feed

    I've been getting familiar with a FANUC OM knee-mill from about 1991. With the help of people here, I've been able to download programs from a PC to the mill, and that's been working great.

    Now I...
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    Re: Backing Up Params

    The machine is a mill. I don't think there are any 9000 programs though.

    The machine came from a school and when I got it there were numerous programs in it, most of which I deleted. A few of...
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    Re: Backing Up Params

    I don't care about macros -- at least I don't think I do. I take it you mean G-code that's simply a bit more sophisticated than usual. Not sure what "timer/counter values" are though. If the ladder...
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    Backing Up Params

    Now that I have a PC hooked up to my FANUC OM machine, I want to back everything up that I can. I've never done this before, so want to be sure that I've got everything I will need in case of a...
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    Re: Trouble Dowloading from PC to FANUC

    The value is 1100 0001.
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    Re: Trouble Dowloading from PC to FANUC

    Parameter 905 is set to 0000 0001. Not sure what it means, but that's its value.

    Concerning memory and drip feed, I doubt whether a memory upgrade would be enough, unless it will take a megabyte...
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    Re: Trouble Dowloading from PC to FANUC

    Something is not adding up for me regarding this discussion of handshaking.

    Bill, you said



    but then later you said
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    Re: Trouble Dowloading from PC to FANUC

    Bill, if I understand you correctly, then the cable configuration that uses five wires is the better choice for DNC (i.e., the configuration I am using now), but I should be using hardware...
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    Re: Trouble Dowloading from PC to FANUC

    Success!

    As is so often the case in situations like this, it was something stupid. There is a key step on the FANUC end of things that I was omitting. The correct series of steps is PGRM, EDIT,...
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    Re: Trouble Dowloading from PC to FANUC

    Still no success.

    Bill, maybe you and I have different versions of the FANUC parameter manual, but the one I have, for series O, OO and O-Mate, says that bits 7&6 of 0038 are RSCMD1 and DEVFL1,...
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    Re: Trouble Dowloading from PC to FANUC

    First, I was messed up assuming that the 25 pin parallel port was really a serial port. I knew better, but somehow went barreling on in the wrong direction. Thanks for setting me straight.

    Well,...
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    Re: Trouble Dowloading from PC to FANUC

    Al, your PM mailbox is full.
    Randall
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    Re: Trouble Dowloading from PC to FANUC

    If I understand what each person has said, we have three conflicting pieces of advice. Maybe someone who understands the big picture can explain why all three approaches are correct...

    I do know...
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    Trouble Dowloading from PC to FANUC

    I recently acquired a knee-mill with a FANUC OM control. I've been working through a few issues with this older machine, and the latest is getting it to accept programs uploaded (downloaded?) from a...
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    Re: Nudging ballscrew

    I've have things apart, and I'm not sure whether I'll try to fix this problem or not.

    The pulley is held in place with a series of overlapping wedge-shaped rings The screws in the outermost plate...
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    Nudging ballscrew

    I've been going over a milling machine I acquired recently, fixing various things, and the x-axis ball screw is a little out of place. The machine is from around 1991, and the most similar model I...
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    Re: FANUC Losing Position

    The problem is resolved -- I hope! There was mechanical slippage on the x-axis. Here's what I found.

    This machine uses a timing belt kind of setup, and the pulley on the shaft of the x-axis servo...
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    Re: FANUC Losing Position

    Gentlemen, mechanical slippage is certainly part of the problem. There is definitely slippage on the shaft of the motor. There is a timing belt type setup, and the pulley on the motor is slipping on...
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    FANUC Losing Position

    I recently acquired a FANUC OM knee mill for my home shop, and something is not right with the x-axis. First, some background.

    The machine is from about 1991, and came from a local technical...
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