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IndustryArena Forum > CAM Software > Dolphin CAD/CAM > G41 Cutter Comp Error
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  1. #1
    Join Date
    Dec 2010
    Posts
    24

    G41 Cutter Comp Error

    Just got v11 and trying to do some tests, but having some problems with cutter comp as output by the post processor. I have a Dynapath Delta 10 controller. Following is a simple file straight from the post processor for that controller. Just a square with a circle in the middle.

    The program seems to run fine until line 185, which is g41 cutter comp left. This controller excepts G40, 41 and 42. But I get an error with g41 in this program.

    I run the same program with the offset to none, g40 and the program ran all the way through.

    So I'm not sure if it's looking for something before line 185? I also noticed that the post is adding several g codes to the first line, which my manual says there can only be one g command per line.

    Can anyone help with this issue?

    %
    N5G70G40G17G90G80
    N15T1M06
    N25S1225M03
    N35G00X0.0Y0.0F5.0
    N45Z1.969
    N55X0.75Y0.0
    N65Z0.125
    N75G01Z-0.5
    N85G03I0.0J0.0
    N95G01X0.375Y0.0
    N105G03I0.0J0.0
    N115G01X0.188Y0.0
    N125G03I0.0J0.0
    N135G00Z1.969
    N145S1225
    N155X-2.006Y2.257
    N165Z0.125
    N175G01Z-0.5
    N185G41X1.992Y2.257D1
    N195G02X2.242Y2.007I1.992J2.007
    N205G01X2.242Y-2.007
    N215G02X1.992Y-2.257I1.992J-2.007
    N225G01X-2.006Y-2.257
    N235G02X-2.256Y-2.007I-2.006J-2.007
    N245G01X-2.256Y2.007
    N255G02X-2.006Y2.257I-2.006J2.007
    N265G40G00Z1.969
    N275M30

  2. #2
    Join Date
    Oct 2010
    Posts
    317
    N5 is a safe start line, it cancels most and you need a linear move after activating cutter comp before it will take effect so either add another line before the G02 or move the G41 command to a new line before N185 and then change 185 to a G01. Your control should take multiple G codes on a line, most I am familiar with wont take more than one M code.

    Try moving G41 to N180 and change G41 on 185 to G01, if that doesnt work you will need to put G41 on N155.

  3. #3
    Join Date
    Dec 2010
    Posts
    24
    I agree, N5 looks suspect. This was the code generated straight for the post processor. Also noticed on that line there is a g40, no comp and is also modal. According to the manual I have for this controller, it cancels out any proceeding g41 or 42. Does this sound correct?

    Just looking for a way to output clean code from Dolphin without modification, or am I asking to much? Will this be a case that I'll have to modify every code that comes out of Dolphin?:devious:

  4. #4
    Join Date
    Oct 2010
    Posts
    317
    Yes N5 is a common line, it is used to cancel anything that may not have been canceled before...cutter comp G40, drill cycles G80, etc...

    You can edit a post processor to make it output the correct code. There may be one available already.

    Are you sure your control wont accept multiple G codes per line and it wasn't talking about M codes.

  5. #5
    Join Date
    Dec 2010
    Posts
    24
    You're correct, I can have multiple G codes per line, but only one M code per line.

    Forgive me, I'm still trying to get use to this whole CAM software thing. Normally, programming at the machine, I can only enter one G per event and each event is a line.

    Also, your suggestion worked on changing g41 to g01. And moving g41 back one line. Thanks for your help

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