Now I have a question!



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Thread: Now I have a question!

  1. #1
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    Default Now I have a question!

    Hello everyone...and HAPPY NEW YEAR!!!

    I've been having lots of fun with my old Tsugami cnc swiss.

    I tried programming the, "Y" axis today, live tool turret. No matter what I do, I can not get the "Y" to travel at a programmed feedrate. I called up T2323 which is a #4 center drill. I gave it a spindle speed, and an M21 to turn on the live tool...works great! I gave it a rapid move to within .050 of the part...Perfect!

    I then added: G01 Y-.2 F3500. Using single block, the machine halts at this line...no alarms, it just will not execute this line. I did check to verify that the machine was not actually moving.

    The "X" and "Z" work fine using this programming format. Apparently the parammeters have been set to ignore a decimal place. F3500 is F3.5 inches per minute. G01 and a feedrate is correct for "X" and "Z", but not "Y". If I use G00 Y-.2 instead of G01 and a feedrate the tool will move into the part, at the rapid rate of course. I don't think the G01 is the problem as I inserted a G01 before the feed line and the control let me single block past it.

    There is either a code that must precede the G01 line command, or the feed code is different for "Y" . It is a center drill going .100 deep in 360 free machining brass so it really didn't matter that it did a rapid move. I have other tools in the turret that must be controlled by a feedrate. Is there some other code string that is used for the "Y" axis to make it feed correctly?...or is something goofed up?

    Similar Threads:
    Last edited by 91Tsugami; 12-30-2017 at 08:17 PM.


  2. #2
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    Default Re: Now I have a question!

    F3500. is 3500mm per min?

    If so, depending on the modal feed rate prior to this tool, you may need to add G98 for feed per minute. (as opposed to G99 Feed per revolution)

    Typically I always add G1 G98 or G1 G99 to the first cutting line of a tool block so I am sure which feed mode I am in.

    Since your (main) spindle is not spinning and you may still be in G99, the machine is reading 0 feed due to 0 RPM, and thus the machine appears stalled, though it is only doing what you told it to do =)

    Try that to start

    CNC Product Manager / Training Consultant


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    Default Re: Now I have a question!

    Thanks MC,

    I'm sure that's what I missed! The program was still in G99 mode. I had to move the machine to a new location, so it may be a few weeks before I get it wired up again.

    Thanks again! I'm betting it will be just this simple.



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