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How do I curve a tube or pipe?

jonas_rullojonas_rullo Member Posts: 2
I've been trying to create a simple cylinder/tube with a smooth bend. I can extrude a tube or a cylinder. I cannot figure out how to bend the cylinder. I watched the sweep video, however the video starts with several objects that I cannot duplicate. I do not see what the relationship is between the thing being swept and the sweeping tool.
I clicked sketch and added a 5mm circle. I then used spline to make a curved line from the center of that circle. I want the spline to be a solid cylinder in the diameter of the circle. I tried doing this by editing one sketch and also creating a circle sketch and a spline sketch. 
Searching for tube or curved tube, or bend pipe or tube finds no examples. 

Any idea how this would be done? 


  • mahirmahir Member, Developers Posts: 1,291 ✭✭✭✭✭
    edited August 2016
    This is the typical workflow I follow for sweeps.

    1) Create a smooth continuous sweep path as either a sketch or intersection of surfaces/solids.
    2) Create a plane that is normal to the path at one of its end points.
    3) Sketch the profile on this normal plane. It's good practice to add a Pierce relation to the sweep path.
    4) Use the Sweep feature to essentially extrude the profile along the path.
    5) Tweak the various options (solid/surface, add/remove, profile orientation) to achieve the desired results.
  • 3dcad3dcad Member, OS Professional, Mentor Posts: 2,470 PRO
    Check out this great tutorial for sweep that @viru posted on another thread: https://forum.onshape.com/discussion/comment/20877/#Comment_20877

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