2 Replies Latest reply on May 25, 2016 12:38 PM by Oliver Davidson

Mirroring a spline causes over-definition with "no solutions found"?

Oliver Davidson May 24, 2016 6:56 PM

So I have this pretty simple sketch with a spline I need mirrored, but ANY way I try to sketch it, it fails (I've tried referencing dimensions differently, using construction lines... etc).

The thing that seems to be tripping up Solidworks is the curvature continuity of the splines I'm attempting to mirror... because if they're just tangential everything is hunky dory and SW calms its over-reactive ass down.

Every "solution" SW comes up with in the "SketchXpert" troubleshooting window simply deletes one or ALL of the relations my sketch has. And I need all of them (I think). I feel like I could just be missing some obvious conflict but then how come SW can't figure it out?

I've attached the file in question with one of the four splines I've been trying to sketch (the first one is never problematic), could someone give it a once over and with any luck find a solution?

Thanks for any help, I've been tearing my hair out about this for the past few days

ProblemSketch.SLDPRT.zip 42.3 KB

Re: Mirroring a spline causes over-definition with "no solutions found"?

Glenn Schroeder May 25, 2016 8:32 AM (in response to Oliver Davidson)

I don't know why it's throwing up the error. I've had similar things happen in the past when mirroring arcs. Anyway, I assume you're trying to mirror the vertical line and arc on the left? If yes, if you'll delete the relation shown below it will be okay.
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- Re: Mirroring a spline causes over-definition with "no solutions found"?
  
  Oliver Davidson May 25, 2016 12:38 PM (in response to Glenn Schroeder)
  
  Thanks for the reply, Glenn, however, that relation is required to keep the two splines symmetric. When its deleted, and the spline on the left is moved, the corresponding spline on the right doesn't move with it (which it needs to).
  
  But all is good, I've actually realized that the curvature continuity with the straight line is not necessary, and instead can be tangential, which solves all of the problems
  
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