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  1. #1
    Captdave's Avatar
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    Gentleman,

    I recently acquired a Hardinge DV-59 with an accuslide (Fagor 8025TG) retrofit. This is my first CNC machine so my knowledge is limited to only the basics and Iím finding that the manuals leave a lot to be desired for the novice user.

    Presently, Iím setting up the tooling and having trouble entering the basic tool positions. The manual I have states the following procedure from the Upgrade Tech manual:

    Fagor 8025 Tool Offsets
    Jog up and touch the part on the X axis.
    Hit T measure.
    Type in Txx.xx and hit cycle start.
    Type in X, and the diameter of your part and hit enter.
    Hit X and then F1 to store.

    The above line is where Iím running in to trouble. There is nothing shown above the F1 key (like save or enter). So when I try to enter the Z position it will not allow me to do so because the X is still present from the last command and the jog is not active.

    Jog up and touch the part on the Z axis.
    Type in Z and the value you are calling it.
    Hit Z and F1 to store.
    Repeat these steps for next tool
    When your done setting your tools make sure you type in T00.00 cycle start, then hit T measure key again to get out of it.

    Any thoughts or suggestions?

    Dave
    Summit Engineering
    404-964-3283

  2. #2
    dkmc is offline Diamond
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    Another way......I have an 8020 and it does not have the measure function, so heres the procedure that will work on an 8025 also....

    1.Touch tool #1 (which ever tool you pick to be #1...usually an OD turning tool for me anyway).

    2. Press OP MODE key.....press 8 (Tool offsets).

    3 Enter T1....press recall.

    4. Scroll thru backward to the Z offset, enter value

    5 In this case, I would make T1 the X0 Z0 offset tool (X.0000 Z.0000) then all the OTHER tools will require offsets to match their length/diameter to T1.

    6. Take a cut on an OD with T1 and measure the dia. Don't move the x axis until you go to the jog screen and enter that X value...(in jog) press X, type value,hit enter. See the value on the screen.

    So....lets try T2 so this makes some sense to you.

    Jog T2 in contact w/ the face of the part.
    Write down the value for Z.
    Get back in the tool offset table, T2 this time.
    Enter the value for T2 Z...hit OP mode again, hit 5 (jog) and see if the Z is 0 (you must have T2
    called up .....look for T2.2 somewhere near the bottom on that jog screen).
    For X, the offset is HALF the value (Radius).
    you need to use + or - values accordingly in the offset table.

    And so on with all tools.

    Hope this helps?

    dk

  3. #3
    Bobw's Avatar
    Bobw is online now Diamond
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    The way I always did it was call up the tool offset first, then hit t-measure.
    x whatever your offset is,
    and then it should say LOAD above F1 or F2.

    Calling up the offset after hitting t-measure may be screwing you up.

  4. #4
    Captdave's Avatar
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    I believe I have the tool offset problem work out now with help for you all. I'm taking baby steps here so here is the next problem I'm running into. When I edit the program in any way, (speed, feed or dia.)I get a Z axis limit overtravel.
    My simple facing program I'm using:

    N000 G90 G95 S1000 T3 M3
    N010 G00 Z 0
    N020 G00 X 1.000
    N030 G00 Z-.010
    N040 G01 X+.050
    N050 G00 Z+ 3.000
    N060 M05
    N070 M30

    Either the Tool offset isn't storing or do I need to home the table prior to restarting the program? Ok I'm grasping here!

    Dave
    404-964-3283

  5. #5
    dkmc is offline Diamond
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    Not sure on your GT machine, but I don't think it has home switches. No matter, no need to home it anyway unless that is the way you want to work (every offset relates to a home position).

    As long as T3 has the center of the workpiece as X0 and face of the part as Z0 I don't see any problem with your program.
    Go in the tool table and look to see if your offsets are there.....
    Are you actually hitting one of the Z axis limit switches? If not, maybe it's a software limit in the parameters.
    I see no other reason for the Z limit message.

    I enter the offsets right in the first few lines of the program using G50.......here is an example:

    %01230
    N0 (PART: RIVET)
    N20 (DUNMATIC 8020BARFEED-6 POST)
    N40 (TOOLPATH GROUP #1)
    N60 (NONE)
    N80 (1ST RUN TUESDAY, JULY 03, 2007 13:44)
    N100 (LAST MOD TUESDAY, JULY 10, 2007 13:25)
    N120 (AUTHOR DEFAULT)
    N140 (MAT. TYPE/SIZE:7/16 1018)
    N160 (BLANK LEN. OR STICKOUT:1.250)
    N180 (WORKHOLDING:5C)
    N200 G90 G70 G40 G97
    N220 G92 S500 (DEFAULT MAX RPM)
    N240 M12 (TURN ON BAR FEED)
    N260 T00.00
    N280 (TOOL NO ? IS X0 Z0)
    N300 G50 T01 X0 Z0 F0 R0 I0 K0
    N320 G50 T02 X0 Z0 F0 R0 I0 K0
    N340 G50 T03 X0 Z0 F0 R0 I0 K0
    N360 G50 T04 X0 Z0 F0 R0 I0 K0
    N380 G50 T05 X0 Z0 F0 R0 I0 K0
    N400 G50 T06 X0 Z0 F0 R0 I0 K0
    N420 G50 T07 X0 Z0 F0 R0 I0 K0
    N440 G50 T08 X0 Z0 F0 R0 I0 K0
    N460 M1

    Each time the program runs, it dumps the offsets into the tool table. And handy that they stay with the program this way too....

    dk

  6. #6
    Captdave's Avatar
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    No, I'm not hitting any of the table limits. If you home the table it hac about 4 inches of travel remaining on the z axis. I'm using one of the sample programs for the manual and that is how it's built for the facing.

    It is storing the T3 tool offset.

  7. #7
    dkmc is offline Diamond
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    Maybe a loose cable or connection at the switch then?
    If not, check the software limits in the parameters.......

  8. #8
    Doug is online now Diamond
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    N000 G90 G95 S1000 T3 M3
    Dave,

    I'm not in the shop yet to verify this....

    Just a wild guess, but shouldn't the tool be called up with "T3.3" rather than "T3"?

    If I'm right, what's happening is the "N50 G00 Z+3.00" line is trying to move 3 inches beyond the the Z limit because it isn't recognizing any tools as being called up.

  9. #9
    dkmc is offline Diamond
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    Just a wild guess, but shouldn't the tool be called up with "T3.3" rather than "T3"?
    Absolutely correct the .3 calls the offset number.
    Although I'm not sure the control will even read a T number without the (.3) in the T call....?


    dk

  10. #10
    Captdave's Avatar
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    Doug,

    Went to tool measure and used T3.3 in the set up. Changed to T3.3 in the program but no change.

  11. #11
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    I think I may have found the problem. After editing the program, it wants to restart on that N number I just edited. I scroll up to N0 and hit reset but it won't change the program start point. I have been able to randomly get it to restart by searching thru the F1-F9 keys, I can get it to chage to N0 and it works like a champ.
    How I have done it I can't repeat. I'm lost!

  12. #12
    dabigguy is offline Aluminum
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    N0 and then recall. That will get you back to the top of the program when in auto.

  13. #13
    Doug is online now Diamond
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    I don't think there's a way to RESET to get back to the program start point.

    In AUTOMATIC mode type "N0", then RECALL. That should reset the start to the program beginning (N0 in your case).

    BTW, the Fagor is only control I've used that wouldn't get you back to the start point with a RESET.

  14. #14
    Captdave's Avatar
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    So Sweeeeeeet!! that did it.

    Thanks everyone!

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