Variable Section Protrusion

Hi
I use ProE Wildfire 2.0 (I suppose.. )
I have to design a part with double-tapered piece (i.e. truncated
cone)
I would sketch the first section and the last one.
Otherwise suggest me how I can do.

I tryed to use the 'Variable Section Sweep'...I sketched the
trajectory (a straight line) e I sketched the first section (a box).
The result is not like I would.

Matteo

 

You could also create this shape by sketching the two end circles,
then creating a boundary surface between them, capping it off and
solidifying.

 

That is how I'd do it. But be sure to use control points. Don't let it
develop more surfaces than necessary. Ideally the sections have the
same number of segments, if so you can use piece to piece fit to help
control your blend. Otherwise it may help to add a datum point or two
to reference as control points. Try it and see.

If the blend is twisted, you can drag a start point to help straighten
it out.

Then merge the quilts together, select the quilt and EDIT: SOLIDITY

Becoming handy with SBB is a major key to successful surface modeling.
Most complex shapes utilize this.



If this is actually just a simple round cone, do a revolved protrusion.

 

Or a parallel blend. Same number of entities per section.

 

That is how I'd do it. But be sure to use control points. Don't let it
develop more surfaces than necessary. Ideally the sections have the
same number of segments, if so you can use piece to piece fit to help
control your blend. Otherwise it may help to add a datum point or two
to reference as control points. Try it and see.

If the blend is twisted, you can drag a start point to help straighten
it out.

Then merge the quilts together, select the quilt and EDIT: SOLIDITY

Becoming handy with SBB is a major key to successful surface modeling.
Most complex shapes utilize this.



If this is actually just a simple round cone, do a revolved protrusion.

Another approach, using the same SBB tools:
"Fill" each end sketch
Select capping surfaces
Click on the boundary blend icon and it blends between the two surfaces.

David Janes