helical sweep question?

Forum|Forum|13 years ago
January 11, 2013
4 replies
7556 views

how to do this in pro engineer?

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General

Best answer by rohit_rajan

thanks guys....just figured it out...a combination of sweep and helical sweep does the job.

Patriot_1776

22-Sapphire II

Veriable Section Sweep is the method I'd use.

T

TomD.inPDX

17-Peridot

Warp using rotation

It takes a little special effort. The initial offset is normal but not in your example. You can change that with the "marquee" control.

The initial part is a simple extrusion.

Patriot_1776

22-Sapphire II

Well, you can use Warp, but I've found you don't seem to have the control you get with a VSS and Trajpar. With that, I can precisely define the twist at the either end and at all parts along the trajectory, and any reversals in rotation I want. I think they added Warp features to creat models for animation. It's pretty easy to modify the geometry, but if you want to have an exact geometric shape result, it's almost impossible (read: I've never been able to get what I wanted). Like everything in Pro/E, or any other modeling software, exactly what shape do you want? Try this with Warp.

T

TomD.inPDX

17-Peridot

You need to link that file for me, Frank. I can not get Creo to sweep a sketch (or at least define a sketch) normal to the axis of rotation. It looks like yours did. Or am I missing something?

T

TomD.inPDX

17-Peridot

Hopefully Frank will enlighten us on how to use helical sweep for this function, but the other way that worked is Blend, but it required several section to help guide the twist. The advantage of this method is controlling the rotational aspect of the ends. An "extrude and twist" command would be really nice.

R

rohit_rajan

Author

15-Moonstone

a very big thankyou to all for your help..blend option seems to be helpful here....the original image i have done in solidworks and posted...it was very simple to do in solidworks..a helical curve and a cross section was required in solidworks....

R

rohit_rajan

AuthorAnswer

15-Moonstone

thanks guys....just figured it out...a combination of sweep and helical sweep does the job.