Helical curve

[balamurugan_rs]

I want a curve (n turns) to be projected on to a surface like a helical spring

 

[TWINTURBOTOM]

datum curve driven by an equation (helical curves equation)...


or a helical sweep with a circular cross section...that will look like a spring, and it can be done very fast...

 

[balamurugan_rs]

I knew that ,I would like to know is there any other way of projecting a curve like a helical spring on to the surface of a cylinder

 

[TWINTURBOTOM]

so you want to have a helical curve projected onto a cylinder? as if someone was shining a light onto the helical curve and shadow (2d representation of the 3d curve) wasprojected onto the cylinder?????


try a datum curve driven by an equation such as....


x=cos(t*360)
<TT>y=sin(t*360)</TT>
<TT>z=t</TT>


<TT>this will be a single turn....if you want to make it adjustable do something like....</TT>


<TT>x=cos(t*nturn*360)
<TT>y=sin(t*nturn*360)</TT>
<TT>z=height*t</TT></TT>


<TT><TT>where height, nturn are parameters you set up before hand...this way if you want to change the turns or height you can....you can also create a radii parameter....</TT></TT>


<TT><TT>after that create another curve...a projected curve over the cylinder....set up everythine the way you would if you wanted to project text over a cylinder (i'm using that example because people have posted ways to do that here..)...then when the skether comes up....geom tool, use edge....and pick the helical curve!!! </TT></TT>


<TT><TT>that should did it....then hide the helical or dimension the projected one and delete the helical......</TT></TT>


<TT><TT>i'm not really sure i understand what you are getting at....good luck!!!</TT></TT>


<TT><TT>and if you are just looking for a curve to follow a cylinders surface...in wf3 you can make the curve and then "wrap" it around a cylinder.....</TT></TT>
Edited by: TWINTURBOTOM

 

[slashct]

Here is an easier way, make a surface and than sketch a line and wrap it on the surface. If you search the forums I posted this already.

http://www.mcadcentral.com/proe/forum/forum_posts.asp?TID=31 400&KW=wrap


Edited by: slashct