Mastercam MACHINE DEFINITION for Okuma

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Thread: Mastercam MACHINE DEFINITION for Okuma

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    *Registered User* YYYHHYYY's Avatar
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    Default Mastercam MACHINE DEFINITION for Okuma

    I have a LB15 Okuma 1984ish lathe and I use DNC precision software to load programs however it's extremely difficult to do this as a lot of the G codes are not recognized by Okuma
    so every time I load a program I have to Omit
    G28
    G54
    G99
    I have to tell how to home where in X and Z

    I also have to delete G97
    G40
    pretty much all the G codes there is that you would normally use on a daily basis

    anyway I am told you can get a machine definition so it would generate only the legible codes. can anyone help?

    thank you

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    Default Re: Mastercam MACHINE DEFINITION for Okuma

    its not a definition file you want... but a post.
    .... plus... set the correct features in Mastercam to get the correct codes.

    Your reseller should have set it all up for you when it was installed & with your training.

    PS.. check the settings in Misc. Intergers... this affects the G54, G28/G30 outputs.
    G99 requires a post mod.... posssibly you need a couple more mods for correct Okuma code.

    You probably need a .MIN file instead of .NC ?

    PPS .... there is a Mastercam forum
    . search there for more info



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    Default Re: Mastercam MACHINE DEFINITION for Okuma

    Quote Originally Posted by Superman View Post
    its not a definition file you want... but a post.
    .... plus... set the correct features in Mastercam to get the correct codes.

    Your reseller should have set it all up for you when it was installed & with your training.

    PS.. check the settings in Misc. Intergers... this affects the G54, G28/G30 outputs.
    G99 requires a post mod.... posssibly you need a couple more mods for correct Okuma code.

    You probably need a .MIN file instead of .NC ?

    PPS .... there is a Mastercam forum
    . search there for more info
    I just bought the machine and it's an old Okuma from 1980s
    the controller is osp5020l and it's a pain in the ass



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    Quote Originally Posted by YYYHHYYY View Post
    I just bought the machine and it's an old Okuma from 1980s
    the controller is osp5020l and it's a pain in the ass
    It's not the machine that is the issue...
    it is your CAD that creates the nc file that is then loaded into the control.
    you are probably using a generic Fanuc post, hence the use of strange codes that won't work in an Okuma.
    ... there are minor differences between the two, but you still need to either modify the Fanuc post or get hold of an Okuma post...

    look in the mastercam forum.... someone may have uploaded one... or get one from your reseller.

    if it's a pirate copy... sorry can't help you



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    Default Re: Mastercam MACHINE DEFINITION for Okuma

    Quote Originally Posted by Superman View Post
    It's not the machine that is the issue...
    it is your CAD that creates the nc file that is then loaded into the control.
    you are probably using a generic Fanuc post, hence the use of strange codes that won't work in an Okuma.
    ... there are minor differences between the two, but you still need to either modify the Fanuc post or get hold of an Okuma post...

    look in the mastercam forum.... someone may have uploaded one... or get one from your reseller.

    if it's a pirate copy... sorry can't help you
    ok what about the program itself. let's say you were given the following

    0123 (program name)
    G40 G80
    G28 U0
    G28 W0
    G99
    G50S2222
    G97S111M3
    G96S200
    G0T101
    G54 X1.1Z.1
    G1X0.F.01
    G0Z.1
    X1.1
    Z.05
    G1X0.
    G0Z.1
    X1.1
    Z0.
    G1X0.
    G0Z.1
    X1.1
    Z0.1

    G28 UO
    GO T0707 (CENTER DRILL)
    G54
    G97S1111
    X0.Z.5
    Z.1
    G1 (PECK TAP I FORGET THE G73 CODE )
    so on and so forth

    how do you translate that when writing a .MIN file on okuma or when you are trying to interpret a NC file for Okuma

    can you help me with that please? if you know



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    Default Re: Mastercam MACHINE DEFINITION for Okuma

    Quote Originally Posted by YYYHHYYY View Post
    how do you translate that when writing a .MIN file on okuma or when you are trying to interpret a NC file for Okuma

    can you help me with that please? if you know
    The machine definition file is your machine setup/configuration.
    The control definition file sets how NC code is to be interpreted. how arcs are defined, drill cycles layout, rotary action, file extension of nc file, if WCS is output, reference return code etc.
    The post processor is what converts graphic paths to NC code, M,S & T formats, configuration of WCS & ref. return, all codes pertinant to that machine.


    The control & post are attached to the machine def. file, which is what is selected at the start of creating toolpaths.They all interact as a single selection.
    If you change to a different machine (eg. Okuma-->Fanuc), then the control & post change so when you post the toolpaths to NC file.... the new code would suit the newly selected machine, it would even have the correct extension.

    As I said earlier.... look in the Mastercam forum....I've put up plenty of info... others may have put up an Okuma post

    The process to setup depends on the machine complexity
    ... 2 axis ... simple, but a small amount of post knowledge is needed.
    ... macturn with 2 spindles, 2 turrets, B, C & Y axis ... or a 5 axis mill.... I suggest you purchase the post.

    If you are going to mod your own post.. find a post that outputs very simmilar code... ie Fanuc.
    create a program, post it, modify & prove that nc file to work...
    now modify the post to create an identical file to what was proved..... you will also find that you get a better understanding of how an Okuma works.

    Happy modding



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