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How to Project a 2D Sketch onto a Curved Surface

Discussion in 'Using Alibre Design' started by DBC, Sep 11, 2019.

  1. DBC

    DBC Senior Member

    Is it possible to project a 2D Sketch (spline) onto a curved surface so it can become a path for a sweep. I am trying to do my grooved bottle tutorial in Alibre and finding some difficulties. No easy way to scale a sketch and not seeing a way to project a path.

     
  2. bigseb

    bigseb Alibre Super User

    No.

    But you can create a cut (extruded cut) through curved surface and then go into 3D sketch and use the edges of that cut to create a 3D sketch and use that for your sweep curve. Then simply delete/suppress the cut.
     
    DBC and simonb65 like this.
  3. DBC

    DBC Senior Member

    Thanks, that worked good.
     

    Attached Files:

    bigseb likes this.
  4. DBC

    DBC Senior Member

    Just seems to be too many limitations in Alibre for this.

    Can't fillet groove edges on their own. Screen-0001

    Can fillet some edges, but not all using face, Screen-0002

    Can't remove all faces required when filleting face, Screen-0003

    Was able to remove one corner. Screen-0004

    Tried mirroring before fillets and can only fillet bottom planar face. Screen-0005 Allibe just doesn't seem to like working with curved surfaces.
     

    Attached Files:

  5. bigseb

    bigseb Alibre Super User

    AD is picky when it comes to fillets and chamfers. Have you tried applying them one edge at a time?
     
  6. idslk

    idslk Alibre Super User

    Hello Don,

    can you provide the part file?

    Regards
    Stefan
     
  7. idslk

    idslk Alibre Super User

    Only a quick test,
    fillets worked fine...

    upload_2019-9-12_0-22-33.png
     
  8. DBC

    DBC Senior Member

    Yes, I've tried everything I could think of and then some.
     
  9. DBC

    DBC Senior Member

    I wonder if yours works because of the separation at the front. Is there a space on the back too?
     

    Attached Files:

  10. DBC

    DBC Senior Member

    Here is the file. Would like a 0.250" fillet on all edges.
     

    Attached Files:

  11. idslk

    idslk Alibre Super User

    Hello Don,

    1:
    Here a screenshot made with dynamic sections
    upload_2019-9-12_10-19-10.png
    2:
    I can only find a JPG in your post. Can you upload the part file?

    Regards
    Stefan
     
  12. idslk

    idslk Alibre Super User

    Here a one with no "separation"
    upload_2019-9-12_12-16-7.png
    upload_2019-9-12_12-19-17.png

    Regards
    Stefan
     
    cadtec likes this.
  13. MilesH

    MilesH Alibre Super User

  14. bigseb

    bigseb Alibre Super User

    That looks good! It'll need a concave base though so it doesn't balloon when filled and so that it can stand firmly on the shelf. ;)
     
    simonb65 likes this.
  15. DBC

    DBC Senior Member

    Looks good. I guess you are lucky to have it work for you. Not sure why mine won't but it is a shame that it can't. Kind of makes a person feel that they can't trust in the software enough to start some projects for fear of getting to a point where they can't move forward.
     
  16. idslk

    idslk Alibre Super User

    Hello Don,
    that's what i do. To realize complex projects it's necessary to learn the tool.
    If you provide your file, i'm sure that someone here in the forum is able to find the reason...

    Regards
    Stefan
     
  17. idslk

    idslk Alibre Super User

    Hello Sebastian,
    maybe the next bottle will have this feature...
    This one is only for uncompressed air, which explaines the missing thread for the cap as well:)
    Maybe we can copy the thread from your preform (have you made a the bottle tool for the stretch blow molding machine also?)

    Cheers
    Stefan
     
  18. DBC

    DBC Senior Member

    The tools are not that complex, some are just not robust enough - if they are there at all. I know you all love Alibre and I'd like to as well, but it still needs a lot of development as one can see by reading numerous posts on the forum. Even people like Seb, whom I assume is a long time user, calls it picky in this use case. If a user came to Alibre with no CAD experience at all, it would seem like the cat's meow, but coming from a full-time, long term background of CAD with experience in a number of CAD application, I rate Alibre as pretty darn good, but with much ground to cover if it wants to stay competitive. Sadly, I suspect that Alibre doesn't have the resources to develop as fast as its users would like.

    That said, I know it is time for me to stop complaining and just get on with using it, or not, as the case may be. I know what it is like to read these kinds of posts from seemingly new users and it gets pretty tiresome so I will try and change my attitude.

    PS, I did provide the file in a reply to your earlier request for it. It is still there.
     
  19. idslk

    idslk Alibre Super User

    Hello Don,
    may i overlooked it, the file in post #10 opens an JPG for me...
    Can you be so kindfull and upload the file again or post the the link to it?
    Regards
    Stefan
     
  20. DBC

    DBC Senior Member

    Not sure how that happened. Try this.
     

    Attached Files:

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