non-proportional scaling a sketch entity

I want to scale a symetrical airfoil so that the length increases but
the thickness stays the same, in Rhino this is real easy, in SW I've
not a clue how to do it.

The scale dialog box does not seem to support this type of scaling
function........or does it???

using SW2005 SP04

Thanks,
Brad
www.hpaircraft.com

 

No it won't.

But you might want to try the Flex feature and use the stretch option.
With it, you can limit the area of scale. If you're just scaling in one
direction, you might be able to use stretch and not affect the endcap
of the airfoil, but again I'm not sure what your shape looks like or
whether this will work.

Regards

Mark

 

You could scale the resulting solid. Insert/Feature/Scale then deselect
"Uniform scaling".

Jerry Steiger
Tripod Data Systems
"take the garbage out, dear"

 

thanks Jerry.........will give it a try. What I want to do is create
the side-of-body fillet for a flying surface, usually this profile is a
tweaked version of the root rib of the wing, but scaled so that the
length is increased but the chord height is not.

Brad
www.hpaircraft.com

 

Unfortunately, it looks like SolidWorks doesn't make this very easy for you.
I tried scaling a surface and that worked, so you could make a planar
surface which is the shape of the root rib, pattern it, and then scale each
of the surfaces appropriately. Then you have to make composite curves from
the edges of each surface and loft using the composite curves as profiles.
With luck you will be able to add the right tangency conditions at the ends
and get a nice fillet.

Jerry Steiger
Tripod Data Systems
"take the garbage out, dear"

 

Hmmm............think I'll probably just tweak the profiles in RHino,
them export them to SW. I did a lot of that in my early days before I
got handier with SW.

Wonder why SW does not offer the non-proportional scale function??

Cheers,
Brad

 

Unfortunately, I'm still living in 2004, so I couldn't open it. Could you
explain verbally how you did it? Is there new scaling functionality for
sketches in 2005 or 2006?

Jerry Steiger
Tripod Data Systems
"take the garbage out, dear"

 

Hi Paul,

I need to transfer the file to my office PC, the one with SW on it to
check out the file you sent. I keep a PC for E-mail and such and then
there is the work PC that is not on-line.
Thanks,
Brad