Designing ergonomic handle

I need to design an ergonomic tool handle.
Think about a knife handle. Left and right handle sides are mirrors.
But top and bottom are not(bottom have fingers grooves)

If top and bottom were also mirrors I could easily do it with sweep
with ellipse profile.
As far as I understand solidworks won't allow me to create two
different curves for handle's top and bottom.

Am I right?

Any advise is appreciated.

Thank.

 

An ellipse is a symmetric element. so whatever is forced on one side
by a guide curve is going to be forced on the opposite side. There is
no direct restriction on two different guide curves having different
influence on a profile that doesn't have symmetry like an ellipse,
circle, or a mirrored sketch.

you might consider breaking up your geometry into individual surface
sweeps or lofts.

Respect

 

Ask Matt Lombard for his Handle part. It's a nice example of using
guide curves effectively.

 

Where can I read about surface sweeps or lofts.

Is there any on line tutorial?

Thanks

 

Go to: www.dimontegroup.com There are quite a few tutorials.... some curvy
stuff....really neat things made by Ed Eaton

Krister L

 

You don't have to use the complete ellipse. You could use half of the
ellipse for the bottom part and some other shape for the top part. You could
also sweep your ellipse, chop off the top half, and then sweep some other
shape for the top half.

If you've got the time, and you really should make the time if you are going
to do this very often, follow the advice and work through all three of Ed
Eaton's tutorials.

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