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Select axis to revolve around

darren_mason871darren_mason871 Member Posts: 35
I'm trying to revolve this shape. I made a construction line but can't select it as an axis.


Best Answer

  • bruce_williamsbruce_williams Member, Developers Posts: 842 PRO
    Answer ✓
    Works for me.  In dialog box select Revolve axis and then the geometry.
    www.accuratepattern.com

Answers

  • KrzKrz Member, Developers Posts: 68 ✭✭✭
    Your curve to revolve must be only on one side of the revolve axis.
  • owen_sparksowen_sparks Member, Developers Posts: 2,660 PRO
    Yeah, that will self intersect if you revolve the whole thing.  If you toggle your construction line to solid and then revolve just the larger of the two sketch regions that'll create then I believe you'll get your intended result.
    Cheers, Owen S.
    Business Systems and Configuration Controller
    HWM-Water Ltd
  • bruce_williamsbruce_williams Member, Developers Posts: 842 PRO
    edited June 2019
    @darren_mason871

    You have a few things going on here.  
    1) as stated above you will need a non-intersecting shape
    2) the solid tools (extrude, sweep, revolve, loft) require a sketch region (closed & shaded)  that means all the curves defining region will need to be on one sketch
    3) you used a 3D spline - that will not work directly for making the sketch region.  You can use a standard sketch spline OR the Use command to transfer the spline to the region sketch

    edit:  I should add - revolve is tricky to get all the requirements at first.  It is pretty easy once you practice a few and see how it works.
    www.accuratepattern.com
  • darren_mason871darren_mason871 Member Posts: 35
    I've changed files to make sure I have a closed and shaded sketch region.   Also, the construction line I plan to use as the axis isn't intersecting with the sketch region. When using revolve, I can select the sketch but can't select the axis. What am I getting wrong?

    https://cad.onshape.com/documents/b8e70cf05b7b4ca43d5be21f/w/992db960325fad23cf429a8e/e/dd12296e50975a67a33931ae
  • NeilCookeNeilCooke Moderator, Onshape Employees Posts: 5,310
    Just try using the precision selector (hold down on the screen then drag the crosshairs over the line). 
    Senior Director, Technical Services, EMEAI
  • NeilCookeNeilCooke Moderator, Onshape Employees Posts: 5,310

    Senior Director, Technical Services, EMEAI
  • bruce_williamsbruce_williams Member, Developers Posts: 842 PRO
    edited June 2019

    www.accuratepattern.com
  • bruce_williamsbruce_williams Member, Developers Posts: 842 PRO
    Answer ✓
    Works for me.  In dialog box select Revolve axis and then the geometry.
    www.accuratepattern.com
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