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create plane between two points and normal to curve

evan_phinney
evan_phinney Member Posts: 6 ✭
edited January 2024 in Community Support
Is this possible? Maybe with a feature script?

I know about curve point, but I would like for it to be on two points either side of a spline curve and I can only pick one or the other. I would like the plane to be normal to the main curve where it passes the points.




Answers

  • eric_pesty
    eric_pesty Member, pcbaevp Posts: 2,824 PRO
    Here's one way to do it (at least I think that's what you were asking)...
    It does take a few steps to get construction geometry in place, you can use either the plane with point curve or the multi-mate connector FS which lets you re-orient the secondary axis which might be helpful if you want to sketch on there after...

    https://cad.onshape.com/documents/9d6b2a5e3c8701a552458cbd/w/33dedbaf633ed2e9281ea224/e/9561dba6f414c74135f3d02b

    However I don't have any context for what you are trying to do but I wonder if it wouldn't be easier to try to define a plane first and create your curves afterwards...
  • evan_phinney
    evan_phinney Member Posts: 6 ✭
    @eric_pesty that is close but not quite it. And I think I have figured it out... Brainstorming yay!

    If you  look in my linked document it has been completed to my liking. I created a 3D Fit Spline between the two outer endpoints, made a Point Normal Plane midline on that curve. Started a new sketch on this plane and projected the middle curve and one of the outer ones onto the sketch. Then with a creative use of the Trim tool I got an intersection point, plus the end point of the middle curve. Then just a quick line for "normal" reference for the new plane. Finally, a Curve Point Plane using the midpoint of the previous 3D spline, and the line made in the last sketch.
  • evan_phinney
    evan_phinney Member Posts: 6 ✭
    eric_pesty said:

     create your curves afterwards...

    In the actual PS I'm working in, the curves are already defined and cannot be changed.
  • eric_pesty
    eric_pesty Member, pcbaevp Posts: 2,824 PRO
    @evan_phinney
    Glad you figured it out. The "sketch6" mate connector in my sketch is actually what you were looking for I think. Similar process except I skipped creating your "plane3" by using an MC directly. And I just created a line segment "normal" to the middle the curve (instead of a convert/trim)

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