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can you define a line with an equation with Solidworks

can you define a line with an equation with Solidworks

can you define a line with an equation with Solidworks

(OP)
I am trying to sketch a parabolic line with an equation but cant seem to figure it out.  

RE: can you define a line with an equation with Solidworks

Do you know there's a parabolic sketch feature you can use, similar to a line?  You may be better off using that, and then interpreting key points for the parabola to pass through based on your equation.

(If you don't know about the feature I mentioned, search Parabola in Help and it will show you.)

Jeff Mowry
www.industrialdesignhaus.com
Reason trumps all.  And awe transcends reason.

RE: can you define a line with an equation with Solidworks

I don't think you can directly.  You may want to look into creating a curve through points.  You can create a spreadsheet with x,y,z, locations for your parabola.  In the excel spreadsheet, you will have your equation(s).

Just a thought.

Shaggy

RE: can you define a line with an equation with Solidworks

(OP)
Thanks for the help I think that I will try to use the excel spreadsheet method.  I was asked to use an equation, but I think that I will get good results with the data points.  

Thanks guys

RE: can you define a line with an equation with Solidworks

parabola equation: y=Ax^2+Bx+C

From this you can determine the focus and apex of the parabola.  That should allow you to constrain a parabola according to the equation.

RE: can you define a line with an equation with Solidworks

Thanks, Tick--I'd forgotten the simple equation.

Anyway, a parabola is a parabola.  Check it out in the sketch and you'll notice you can scale/stretch it to whatever you need.  Pin down the focal point and the rest ought to be quite simple.

Jeff Mowry
www.industrialdesignhaus.com
Reason trumps all.  And awe transcends reason.

RE: can you define a line with an equation with Solidworks

Be careful as to how you sketch your parabola, that you use a parabola entity and not a spline.  Splines have an extra degree of freedom that cause variance.  A spline constrained to match a parabola by defining points will never completely match a true parabola, no matter how many defining points are used.

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