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Orvie

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Posts posted by Orvie

  1. I have taken these classes at CNC.

    Colin Gilchrist was the instructor at the time. He did a very good job at explaining how powerful the post processor is.

    You might be better off taking his post class on eapprentice. The material will always be available to you this way.

    Plus, you could start today if you wanted.

    • Like 2
  2. 20 hours ago, Colin Gilchrist said:

    Do you happen to know if the 3K (and 10K) limits are "per model", or if they are "total # of triangles" allowed in the simulation? I thought it was a "total limit", shared amongst all the models being used, but I'm not 100% sure...

    This number is per model.

    While you can now get up to 10,000 triangles, It is much more stable to simplify things like tool locators, tailstocks, or anything that really doesn't need to be finely detailed.

  3. There is a free utility called STL to CAS,, I think that's what it's called.

    It allows you to convert, fix, orient, and reduce the number of triangles for easy import into CAS.

    The P200 is limited to 3000 triangles, but the P300 can be up to 10,000 triangles.

    Our machines shipped with the triangles set to zero, but this was fixed easily once I found the file that limits this.

    It's been a while, but I'm pretty sure it was one of the few folders that started with the letter V.

  4. My advice for programming a VTL is,   Don't.

    The horizontal posts for mastercam are very solid.  Just program your VTL as a horizontal.

    This also makes transfering a job between Horizontal and Vertical lathes seamless. 

    Just Post and go.

    • Like 1
  5. That's not true.

    In fact, I set up templates like you would in lathe and import new parts and stock models.

    I also start with a clean slate and import operations.

    You will have to redefine part, stock, main wcs, sub wcs, jaws, and pickoff, but after you've done it a few times it actually saves a lot of time.

     

    Now, If you decide to change part hangout, jaws, or pickoff location in a file, you will have to adjust main and sub WCS, but that is fairly easy.

    Once you reselect your modified WCS, the only operations you need to adjust are parametric options that don't use geometry like Facing.

     

    I have used enough machine environments to also know that they don't all behave the same way.

    Typically, I would choose "right face" for my main WCS, and "left face" for my sub WCS.

    I have written hundreds of programs that this worked flawlessly on.

     

    The most recent machine environment I am using always grabs my stock face for WCS for some reason.

    This forces me to manually define my WCS. 

     

     

     

  6. Here is my suggestion for canned cycles like you want.

    Use a multiplier like 1000 and keep your sequence numbers the way they are.

    This keeps your operations in an order that makes sense, and your Canned start and finish lines have a relation to the operation you are using.

    Have N3 generate P3000 Q3001

     

    N1 (milling, correct n#)

    some code, x and y and some z

    N2 (some more milling, correct n#)

    some more x and y and a little z

    N3 (canned turning cycle, correct n#)

    G271 P3000 Q3001 (correct n# for start of shape and end of shape)

    N3000 G0 X10. Z1. (correct n# begin shape)

    some x and z for shape

    some more x and z for shape

    N3001 X10. Z-10. (correct n# end of shape)

    N4 (next op after canned turning cycle, incorrect n#)

    N5 (next op only incorrect from stackup of n#s)

  7. "Q" is the value that you would use to shift the start angle.

    This does not have to be used with a canned cycle, G32 will also work.

    Also, Your 1st start must include a Q value. I don't think that Q zero is assumed by the control.

    Also, I used to home my C-axis before doing this even though I wasn't threading in milling mode.

    G76X_Z_I_K_D_F_A_P_Q_;
    I : Difference of radiuses at threads
    K : Height of thread crest (radius)
    D : Depth of the first cut (radius)
    A : Angle of the tool tip (angle of ridges)
    P : Method of cutting
    Q: Shift angle of thread cutting start angle

    • Thanks 1
    • Like 1
  8. When you use lines to define geometry for muliaxis drilling, it matters what end of the line you select for chaining.

    If you select the line from the bottom of the hole, you should be able to use the positive incremental values that you would expect.

     

    In my mind, this seems a little backwards because you would think that you would chain in the direction that you want to drill.

     

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