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Loft between an oval and another none even shape causing twist

kurt_conynghamkurt_conyngham Member Posts: 8
I am trying to loft between an oval and a shape with 2 flat sides and circular ends, 
seems simple but on some, not all, it twists the loft, the most right hand part of the oval doesn't loft to the most right hand part of the other shape, it lofts to maybe the upper left hand part and so the new part created by the loft isn't a nice gradual taper, it twists in the middle, see attached picture.
All shapes are perfectly horizontal and symmetrical, if possible the model is public, please see

Best Answers


  • Options
    bradley_saulnbradley_sauln Moderator, Onshape Employees, Developers Posts: 373
    What is the name of the document? If possible please also add the link here.
    Engineer | Adventurer | Tinkerer
    Twitter: @bradleysauln

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    kurt_conynghamkurt_conyngham Member Posts: 8
    What is the name of the document? If possible please also add the link here.

    That should be it, its a bit of a mess at the moment as im struggling with a few things but these lofts twisting are a pain

  • Options
    kurt_conynghamkurt_conyngham Member Posts: 8
    2 slightly different solutions, the first one with the link, this works but slightly squidges the lofts at one side, im guessing because it lines up the points of the round shapes with one side of the oval shapes,
    the lower solution using 4 points appears to have made a perfect loft.
    I also learned why some of my 'remove' lofts don't work, I simply wasn't clicking on the subject that i wanted to remove the material from.

    One thing thats happening now, it will let me make one of the lofts the the next one errors, if i close and open the workspace again, it works on the next one and so on.  Software issue?

    Finally, is there anyway to unsplit the shape I have split so i can move the points round the corners like the video above?

    thanks guys
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