Sweeping an elliptical trajectory
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Sweeping an elliptical trajectory
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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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.
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Frank,
See reply to Antonious. Thanks!
Wayne
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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
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Kevin,
See my reply to Antonious. Thanks!
Wayne
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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.
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My Bad. I have 2 posts. I did not think the first one took. Sorry - new to this format.
Noty sure if this link will take you to other post.
Solved: Re: sweep elliptical sketch - PTC Community
Your solution is basically the idea. Thanks!
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Yep, that's it. I did see it after posting my response here.
The video he posted is pretty good, aside from the background music.
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Cool. Ha ha. Well - the music was different.
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Although Screencast-o-matic said the microphone was off but it recorded anyway. So I overwrote it with a stock you-tube offering of the right length.
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Great job!
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'Morning Antonius! Hey, is that Screen-capture program free? Thx!
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Free with a little spam icon in the lower left. I downloaded it so access is a little easier...
Screencast-O-Matic - Free online screen recorder for instant screen capture video sharing.
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Awesome, thanks bro!
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So Wayne, what is the final shape? You should post a pic.
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Frank,
Actually - what Antonius did online is my start part. He just tweaked it. That is same result that I have.
Wayne
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