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VARIABLE PITCH RECTANGULAR SPRING

v_shankar1979

New member
Hi there,

Can anybody explain the step by step procedure for creating the variable pitch rectangular spring.

Thanks in advance

Shankar.
 

v_shankar1979

New member
Hey guys,

I solved the problem on my own. If anybody would like to know plese let me know I will be glad to anwer.

Make it a great day!

Shankar.
 

v_shankar1979

New member
Hi Guys,

Here is the procedure.

feature>creat>protrude>surface>

and then go to sketch mode. Creat a rectangle filleting the corner. Extrude the feature. Again in the surface mode create a helical surface. Take care that both helical surface and rectangular surface should interfere through out the length of the rectangular surface. Then create a datum curve at the intersection of these two surface.

Now we just have to sweep a profile . This should be done in solid mode.

Make it a great day!

Shankar.
 

jabbadeus

New member
Sounds like an easier way would be a helical sweep, which requires you to define a profile and a cross section.



When sketching the profile, drop datum points wherever you want the pitch to change.



Then you can create a pitch graph. Select the datum points, which will be on the x-axis. Sketch the pitch on the y-axis.



David Martin

Torgon Industries
 

kvision

Moderator
Your solution does not create the correct geometry. It looks close but it isn't. The curve sort of wobbles. Start with the same first surface then create a formed curve on that surface. This will get you the correct geometry. make the same geometry and then copmare.

If you have a KinetiVision account there is a video for this.

http://www.kinetivision.com/quicktips/non_circ_helix.htm

For ProE Central members

http://www.proecentral.com/portal/tips/playvideo.asp?id=58

Download the manual

http://www.kinetivision.com/freevids/Generalized_helix.pdf
 

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