5 Replies Latest reply on Feb 20, 2009 3:48 PM by Tyler King

Sketching with equasions

Brock Robertson Jan 15, 2009 1:52 PM

I have a question and my solidworks bible does not have the answer. I want to use a sine curve to be a constraint curve. I have no idea how to make a sine curve in a sketch. I made a "hold me over" solution of a spline and a bunch of points and played with the tangents but i would ultimately like to put the properly defined equation in to solidworks somehow, if it is even possible.

Sketching with equasions

Josh Brady Jan 15, 2009 2:30 PM (in response to Brock Robertson)

Upgrade to 2009 to get equation driven curves. Until then, your spline over a bunch of points is going to be as close as you can get.
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Sketching with equasions

Rick McWilliams Jan 22, 2009 9:15 PM (in response to Brock Robertson)

You can draw a helix, and project that into the sketch using convert entities. It is easy to control the helix to get the sine curve that you want.
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Sketching with equasions

1-9C36HC Jan 22, 2009 11:09 PM (in response to Brock Robertson)
As Josh has suggested, upgrade to 2009 - it will give you exactly what you need.

equation-curve.jpg 68.6 KB
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Sketching with equasions

Charles Culp Jan 23, 2009 1:23 AM (in response to Brock Robertson)

Here is a thread further discussing Rick's work-around that was required in previous versions of Solidworks:
http://forum.solidworks.com/fo...catid=4&threadid=13274
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- Sketching with equasions
  
  Tyler King Feb 20, 2009 3:48 PM (in response to Charles Culp)
  
  Are there any workarounds to get a logarithmic spiral as a sketch?
  
  From what I've gethered SW 09 does indeed have a way to enter an equation of a curve in a sketch. How does it work as far as start/end points?
  
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