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Flex or Bend part?

Cache_River_MillCache_River_Mill Member Posts: 225 PRO
I have some complex organic shapes that need to be wrapped to a surface...

Is there a tool for this?

Here is a corbel I did WITHOUT this dream Flex tool. Took me forever and it doesn't update if a modify the curved path.


Best Answer


  • kevin_o_toole_1kevin_o_toole_1 Onshape Employees, Developers, HDM Posts: 564
    Hello and welcome!

    There are some tools (e.g. curve pattern) that will help you create similar designs parametrically. However, you're correct that Onshape does not have a "dream" flex feature which performs a true deformation of geometry onto a curved surface.

    Check out some recent discussion on the topic here:

    In that thread several users have created some custom features which offer solutions to the problem. It's worth checking out those tools to see if they are helpful for your next project. However, I'll also offer a word of warning for the geometric purist: The custom feature solutions rely on sampling curves, deforming the samples, and recreating curves through the deformed samples. For simple shapes and a high sample rate this works very well, but you may find that for intricate organic shapes like the ones you've shown above, those custom features will likely fall short of being the flex feature of your dreams :tongue:

  • konstantin_shiriazdanovkonstantin_shiriazdanov Member Posts: 1,221 ✭✭✭✭✭
    edited August 2017
    @kevin_o_toole_1 in those thread there is a feature that supports only wrap/unwrap operations for cylinder and cone surfaces, i have an example of unwrapping feature for arbitary extruded surface, but it needs evDistance to support arcLengthParametrization, from the other hand wrapping feature around arbitary extruded surface can be made with less efforts

  • Cache_River_MillCache_River_Mill Member Posts: 225 PRO
    Kevin, thank you. I will check that out.

    Konstantin, I can use a cylinder to obtain what i need. It will take me a few more steps.
  • Cache_River_MillCache_River_Mill Member Posts: 225 PRO
    Konstantin, this is excellent! You have saved me weeks of modeling.
  • konstantin_shiriazdanovkonstantin_shiriazdanov Member Posts: 1,221 ✭✭✭✭✭
    heh, thanks) these curves are still too far from solid shapes, but curves are now the only entity type that supports nonlinear math transforms via FS
  • Cache_River_MillCache_River_Mill Member Posts: 225 PRO
    Needs some organic shaping on the face of the leaves, but I created the leaves on this in about 30 min thanks to the wrap feature by konstantin_shiriazdanov

  • konstantin_shiriazdanovkonstantin_shiriazdanov Member Posts: 1,221 ✭✭✭✭✭
    edited September 2017
    that's cool stuff, but i'm afraid the best you can do now is to add some fillets, because you actually need free-from tools and 3d sketching on surface, which isn,t currently provided in OS
  • Cache_River_MillCache_River_Mill Member Posts: 225 PRO
    A 3D brush would be legit. Someday.
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