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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 PRO Posts: 354 PRO
    Accepted Answer
    Works for me.  In dialog box select Revolve axis and then the geometry.

Answers

  • KrzKrz ✭✭ Member, Developers Posts: 51 ✭✭
    Your curve to revolve must be only on one side of the revolve axis.
  • owen_sparksowen_sparks PRO Member, Developers Posts: 2,418 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.
    Production Engineer
    HWM-Water Ltd
  • bruce_williamsbruce_williams PRO Member, Developers Posts: 354 PRO
    edited June 28
    @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.
  • 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: 2,438
    Just try using the precision selector (hold down on the screen then drag the crosshairs over the line). 
    Neil Cooke, Director of Technical Marketing, Onshape Inc.
  • NeilCookeNeilCooke Moderator, Onshape Employees Posts: 2,438

    Neil Cooke, Director of Technical Marketing, Onshape Inc.
  • bruce_williamsbruce_williams PRO Member, Developers Posts: 354 PRO
    edited June 29

  • bruce_williamsbruce_williams PRO Member, Developers Posts: 354 PRO
    Accepted Answer
    Works for me.  In dialog box select Revolve axis and then the geometry.
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