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Select axis to revolve around

darren_mason871
darren_mason871 Member Posts: 44 ✭✭
in Community Support
I'm trying to revolve this shape. I made a construction line but can't select it as an axis.


Best Answer

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

Answers

  • Krz
    Krz Member, Developers Posts: 68 ✭✭✭
    Your curve to revolve must be only on one side of the revolve axis.
  • owen_sparks
    owen_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_williams
    bruce_williams Member, Developers Posts: 842 EDU
    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_mason871
    darren_mason871 Member Posts: 44 ✭✭
    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
  • NeilCooke
    NeilCooke Moderator, Onshape Employees Posts: 6,092 image
    Just try using the precision selector (hold down on the screen then drag the crosshairs over the line). 
    Senior Director, Technical Services, EMEA
  • NeilCooke
    NeilCooke Moderator, Onshape Employees Posts: 6,092 image

    Senior Director, Technical Services, EMEA
  • bruce_williams
    bruce_williams Member, Developers Posts: 842 EDU
    edited June 2019

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

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