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  1. #11
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    I think you got that right. I still need to check that acceleration calculation.

    When I free-hang a few loops of filament, it takes about 10 ,minutes per loop. I'd say your calc is correct.
    As to extruded amount, it is the direct relation of nozzle aperture size and filament diameter.
    PI*R^2 for each. Not sure if our aperture is 0.4, 0.45, or 0.5. I'll look at that a little closer.
    Reason for the question is the poor fill of 1mm walls. I suspect 0.45 is the right answer.


    In Cura, you have a couple of options. You can assign a fixed ratio or hard values through very confusing means.
    I haven't found any max value control though. I suspect they are non-existent.

    If you want to play with the spiralize mode, manually remove the normal base. Whatever value that starts at, say 0.8mm, make a disk/floor/base up to 0.8 with MeshMixer or whatever. Create a .cube3 file and now splice in only the spiralized part of the Cura output. Set the M108 to however creamy you want your 'vase' to be and let it run. Remove all other M108's so this becomes universal from that point forward. May also serve to test hard limits to put on extrusion speeds.

    Was all that coherent?

  2. #12
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    Quote Originally Posted by TommyDee View Post
    Pre, just past the Init all the way to where printing starts in earnest; Printers>machine settings>Start G-code

    ...

    Post; End G-code

    ...

    Let me know what I forgot.

    Thanks TD, did you replace the Start and End G-code, or append to it? It wasn't clear from your description. I presume that you replaced it, but I just wanted to be sure. Just starting with Cura. Also, are there any other "gotchas" I should watch out for?

  3. #13
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    If I remember right, yes, you are replacing their header with a known 3D Systems header. The footer, same thing. M109 is handled differently. It needs to be replaced with an "M104 S<temp> P1" ...again check me on this. It is the command to not wait for reheating to achieve temp. This is from memory so feel free to correct what I remember.

  4. #14
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    Thank you TD. Now to get some clarity on how this process should work after getting Cura configured:

    1. Open model in Cura.
    2. Save file as BFB file.
    3. Remove lines with ';' as the leading character
    4. Encode file with cube3_encoder.exe (formerly known as cubepro_encoder.exe?)
    5. Rename file with cube3 extension.
    6. Copy file to usb key.
    7. put usbkey in Cube3
    8. Print from cube3.

    I noticed that you have firmware V1.05 in your header. What if my printer has 1.14B? The reason I ask is that my printer is giving me "invalid file". Do I need to be on 1.05?

  5. #15
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    The jest is correct in the process you site. The firmware is not causing the error. This is minimal f/w and slicer f/w calls. 1.05 works fine since it is simply an earlier set.

    There must be another illegal command that is still in the BFB. I use excel to parse the file to see what is in it.

    I've attached my version of the spiralized vase. Have a look and see how ours may be different.
    Attached Files Attached Files

 

 

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