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3dm import

Discussion in 'Using Alibre Design' started by tk1247, Nov 21, 2019.

  1. tk1247

    tk1247 Member

    I'm wondering if anyone has seen this behavior in AD. I imported an STL file into Rhino, and saved it as a v6 3dm file, then tried to open it in AD. AD crunched for a few seconds, and the progress bar went about 1/4 of the way, then AD just closed. No error messages, nothing - just closed. Anyone seen this before?
     
  2. HaroldL

    HaroldL Alibre Super User

    I've never imported a 3dm file but I have had the same experience with some rather large STEP files.
     
  3. tk1247

    tk1247 Member

    What I'm ultimately trying to do is be able to get an STL file generated for 3D printing into AD to manipulate it further. I know AD doesn't import STL, but I'm wondering if anyone has come up with a conversion path or workaround to allow this to happen?
     
  4. PPi

    PPi Member

    There are paid software out there, but without shovelling money anywhere, you may want to take a look at FreeCAD. I have done a few conversions and it can work pretty well, but it can also fail miserably. The big challenge has been to get Alibre open step files exported from FreeCAD. Other software has opened those just fine, but not Alibre. Now that the importer module is updated, it may work better though.
     
    bigseb likes this.
  5. jhiker

    jhiker Alibre Super User

    Me too. There's no indication of whether it's a memory issue or what. The error message is not helpful.
     
  6. JST

    JST Alibre Super User

    All too common.

    I realize that there are probably from 10 to 50 possible causes for many errors, but if someone can work on an error message format that gives a list of "possibles" or areas to look at, or at least a link to such a list, that would be good.

    Unfortunately, most of the present error messages appear to be more directed toward programmers than users, intended for debugging as opposed to helping. Many probably come directly out of ACIS.

    I keep repeating this because I think the error message issue puts many off. "User-friendly" is a big deal, and the more help that can be given to fix "exceptions", the better. I honestly think this could be a great point in favor of Alibre, well worth an attempt at least.
     
    anson and NateLiqGrav like this.
  7. HaroldL

    HaroldL Alibre Super User

    What? o_O You got an error message? Mine just closed down.
     
  8. aptivaboy

    aptivaboy Senior Member

    I'd suggest using Rhino as a "bridge" between file formats and CAD programs. The free download will allow for something like 20 saves in a multitude of file formats. Its a great free download (unless its changed recently) which really makes buying the actual licensed program very, very tempting... Hmm...
     
  9. bigseb

    bigseb Alibre Super User

    +1 for FreeCAD for stl conversion.
     
  10. bigseb

    bigseb Alibre Super User

    Stl's of large organic shapes result in large organic step/3dm/igs files. I had a file some years back that was like this and AD couldn't import it. Max's suggestion at the time was to divide the converted file into many smaller files and import those. Worked.
     
  11. tk1247

    tk1247 Member

    I do own Rhino v6 and tried it - it did not work.
     
  12. tk1247

    tk1247 Member

    I was hoping that the advertised new and improved importers would do better though - not this time.
     
  13. tk1247

    tk1247 Member

    3 times out of 4 I got no error message - just shut down. The 4th time resulted in an error message that just said something like "an error occurred", as pointed out, not very useful. In Rhino, I've tried converting the STL to 3dm, igs, stp, Parasolid, etc. All no go. In some cases the error was "no faces to stitch".
     
  14. idslk

    idslk Alibre Super User

    hello tk1247,
    where(/with what) do you have created the STL-file?
    Regards
    Stefan
     
  15. tk1247

    tk1247 Member

    I did not create it. It was a third party design of a part from Thingverse. I don't know what it was created with - should that matter? Rhino and VisualCADCAM load it (the STL) with no errors, but I can't get anything to output a conversion that will successfully load into AD.
     
  16. bigseb

    bigseb Alibre Super User

    Have you tried this?
     
  17. idslk

    idslk Alibre Super User

    Hello tk1247,
    it was only if you might have the option to change the creation process of the stl.
    Regards
    Stefan
     
  18. tk1247

    tk1247 Member

    bigseb,
    This is only a single part, not an assembly. I'm not an STL expert - how does one divide the converted file into many smaller files that can be imported by AD?
     
  19. bigseb

    bigseb Alibre Super User

    The geometry of the organic shape could be such that there is too much info for AD too handle. Splitting the file into smaller files can help.
     
  20. tk1247

    tk1247 Member

    I understand.....but how do I do that? Slice it up and reassemble it in AD? I'm also puzzled why AD just quits trying without a single word or message. Also, I've brought far more complex files into AD than this with no problems.
     

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