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Projecting Geometry

roche_harmonroche_harmon Member Posts: 2
Hi.  I'm new to Onshape.  I'm trying to 3D model a rocket.  I have extruded the tube (revolve) and am now trying to draw a fin.  When I begin to draw the fin, I can not get the cursor to snap to the circumference of the rocket.  Can you project geometry to the second sketch plane so this can be done?


  • mahirmahir Member, Developers Posts: 1,005 ✭✭✭✭
    In this case, you need to use the Intersection command on the revolved surface.

  • NeilCookeNeilCooke Moderator, Onshape Employees Posts: 3,175
    The Use command will also get the silhouette edge. 
  • mahirmahir Member, Developers Posts: 1,005 ✭✭✭✭
    Good to know, but if possible I usually avoid using silhouette edges. They're not the most stable of references.
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