Sweeping an elliptical trajectory

Forum|Forum|10 years ago
October 1, 2015
15 replies
6311 views

Hello,

On WF4. Yes - WF4.

First time on this forum since the switch over.

I would like to sweep a solid along and ellipse so it looks like a spoon shape (no handle). How can this be done? I've use var traj sweep. Will sweep but results undesirable.

Thanks!

Wayne

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General

Patriot_1776

22-Sapphire II

Without seeing what you're trying to do, try a regular solid sweep with "Add Inner Faces". If not, you'll probably need to do a Boundary Blend.

W

wfalco

Author

16-Pearl

Frank,

See reply to Antonious. Thanks!

Wayne

K

kschoonover-3

4-Participant

Wayne,

Need a little more info. You say "sweep a solid", do you mean sweep a cross-section into a solid because Creo/Pro doesn't have a drag solid capability except for creating tessellated envelopes, which won't create smooth geometry.

As for a spoon shape, Var traj sweeps can do a lot, but the best way is to revolve an ellipse into a paraboloid (egg shape) and then cut away a portion.

If this isn't what you want, post a sketch of what you're looking for and I'm sure someone will give it a try.

Cheers,

Kevin

W

wfalco

Author

16-Pearl

Kevin,

See my reply to Antonious. Thanks!

Wayne

D

dgschaefer

21-Topaz II

WAYNE FALCO, I don't see Antonius in this thread.

An option using a boundary blend would be as follows (I don't have WF4 installed anymore, or I'd post a model for you):

Sketch an ellipse
Create a datum plane offset from the ellipse sketch the height that you'd like the "spoon" shape to be.
Create a datum point on that plane at the center of the ellipse.
Create a boundary blend using the sketched ellipse and the point as the two curves.
Create a tangency condition at the datum point to the offset plane.

This should create a nice domed surface which you can use to build your solid.