2 Replies Latest reply on Mar 11, 2013 1:43 PM by Roland Schwarz

    Do I need to create a surface?

    Tahir Jamil

      I have scanned a part using the renishaw cyclone machine, and I have IGS and DXF files exported from there and all I need to do is loft it through. I have been advised that I will need to create a surface however the imported files already have the sketches and curves but still I cant loft it through. If anyone can point me in the right direction that would be geatly appreciated.

       

      I have attached the DXF file

       

      p.s. I have imported this as a 3D sketch, 2D sketch but neither, 2D sketch lets me work with sketches however 3D comes in as curves and I can do much with it. So I imported the scans indiviudally and put them on different planes to see if I could loft it like that, and that still doesnt work.

        • Re: Do I need to create a surface?
          John Burrill

          Tahir, the profiles that you're lofting need to be closed.  You can try editing the inividual sketches and using the 'check sketch for feature tool' to find the breaks in the profile and heal them using the trim tool, but I'd recommend changing your import settings so that the sketch endpoints merge across small gaps.  Either way, you're goal is going to be to have closed profiles for your loft.

          Having said that, your profiles contain too many vertices.  Your loft is going to bog down your machine and have lots of twists to sort out.  You should trace over your profiles with sketch entities that have some design intent driving the final shape them as opposed to loops made of sticks.

          If you just want the general shape of the part you scanned, then try generating your scan as a point cloud or mesh and import it as an STL.

          • Re: Do I need to create a surface?
            Roland Schwarz

            Do not use your imported DXF or IGES to create features.  Instead, use them as templates to create your own sketches and then create features from those.

             

            Creating your sketches over imported geometry will allow you to adjust for inconsistencies in imported geometry, and will help you avoid trouble.