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IndustryArena Forum > MetalWorking Machines > Dyna Mechtronics > Fusion 360 Postprocessor for DM1007 mill
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  1. #1
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    Fusion 360 Postprocessor for DM1007 mill

    Has anyone found a suitable 3-axis post processor for Fusion360 that's workable on the Dyna 4M controller? Doesn't have to be perfect, but close would be good.

    I have acquired a Dyna DM1007 mill, and after a little work it's functioning fantastic - however manually entering code on the control is getting pretty tiring.

    Has anyone tried, as an aside, doing a swap of the floppy drive on the control for one of those USB-to-floppy emulator drives?

  2. #2
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    Re: Fusion 360 Postprocessor for DM1007 mill

    For future reference - so far it appears that the Mach3Mill post is usable for standard milling operations; it seems to work fine on the Dyna 4M control and the basic M codes are all doing the right stuff. The only note so far I have is to force IJK for arcs if possible as the control seems fussy about the R address. I have not tried any canned cycles or rigid tapping yet.

    The Fanuc post may also work - that one gives you the option to explicitly force IJK. I haven't had time yet but I will try it once I have thoroughly tested the Mach3Mill post for compatibility.

  3. #3
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    Re: Fusion 360 Postprocessor for DM1007 mill

    Quote Originally Posted by Sun God View Post
    For future reference - so far it appears that the Mach3Mill post is usable for standard milling operations; it seems to work fine on the Dyna 4M control and the basic M codes are all doing the right stuff. The only note so far I have is to force IJK for arcs if possible as the control seems fussy about the R address. I have not tried any canned cycles or rigid tapping yet.

    The Fanuc post may also work - that one gives you the option to explicitly force IJK. I haven't had time yet but I will try it once I have thoroughly tested the Mach3Mill post for compatibility.

    Did you get a chance to do some more experimenting? I was using the Mach3Mill and for the most part it appears to work. However when I ran the code listed below it plunged the Z down about .25". I got extremely lucky it didn't hit the vice.


    G17 G2 Y-0.4956 I0. J0.0936






    (TN5 BOT)
    (T40 D=0.25 CR=0. - ZMIN=-0.204 - FLAT END MILL)
    G90 G94 G91.1 G40 G49 G17
    G20
    G28 G91 Z0.
    G90


    (FACE2)
    M5
    T40 M6
    S3000 M3
    G54
    M7
    G0 X1.1025 Y-0.6829
    G43 Z0.6 H40
    Z0.2
    G1 Z-0.179 F10.
    G18 G3 X1.0775 Z-0.204 I-0.025 K0.
    G1 X0.94
    X0.
    G17 G2 Y-0.4956 I0. J0.0936
    G1 X0.94
    G3 Y-0.3084 I0. J0.0936
    G1 X0.
    G2 Y-0.1211 I0. J0.0936
    G1 X0.94
    G18 G2 X0.965 Z-0.179 I0. K0.025
    G0 Z0.6
    G17


    M9
    G28 G91 Z0.
    G90
    G28 G91 X0. Y0.
    G90
    M30

  4. #4
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    Re: Fusion 360 Postprocessor for DM1007 mill

    That G18 G3 three lines above has nothing to do with it ?
    Some one else with an old control posted problems with Fusion's swoop-dive style approach moves. I'm assuming this is an old control based on the 'floppy drive' comment in the first post.
    Anyone who says "It only goes together one way" has no imagination.

  5. #5
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    Re: Fusion 360 Postprocessor for DM1007 mill

    Swoop-dive is a really good way to describe it. At first that G18 was the one I first suspected because it had the -Z movement. But that line is where the cutter drops to make the first pass. the downward plunge happens at G17. I'm really new to CNC providing I'm stepping block by block correctly. Its the highlighted line each time I press cycle start correct? It makes sense cause it happens after the cutter makes it to x zero and moves over to the next pass.

    Yes its an older floppy system, I converted mine to SDcard but its older.
    Attached Thumbnails Attached Thumbnails Screenshot_20210209-224257_Gallery.jpg  

  6. #6
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    Re: Fusion 360 Postprocessor for DM1007 mill

    The Dyna control doesn't like the G17/G18/G19 plane selection G codes is all I can tell you. Why I noticed it is because whenever the processor parses one of those codes the motion stops; the motion planner can't handle going from a movement in one plane, changing plane, then moving again, without halting at the plane change code. I first noticed this on lead ins/lead outs that Fusion was coding using a plane change. I think I changed a setting somewhere so it didn't use plane changes for that and it solved that issue.

    No idea why it would have plunged unexpectedly but it's probably somewhere in that code. The machine doesn't make **** up, it just does exactly what the code tells it to.

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