Hello everyone,

I am newbie trying to generate a part with a curve central line (path) but different shapes of the cross sections at both ends. I figure out that if I can assign proper guidelines then I can do a sweep to get this done. But the guidelines are not easy to draw, too.

So I post my question here. I wish somebody can show me how to do this step by step. Thanks very much in advance!

Description of the desired part:

- The central line is a curve. It could be a spline.
- The cross sections have a similar lenticular shape (two identical arcs combined together). And two typical shapes are given by the chord length
*a*and the rise length*h*. - The path can be treated as three sections:
- the first third of the part has a constant cross-sectional shape with
*a*=0.8 and*h*=0.07 - the middle section of the part has a gradual cross-section
- the last third of the part has a constant cross-sectional shape with
*a=*0.4 and=0.13*h*

- the first third of the part has a constant cross-sectional shape with
- The cross-sectional area need to be kept constant as possible.

I am really new to Solidworks. So step by step instruction is truly important for me to follow. But even some hints are helpful to me so I can try them one by one.

Best regards,

Haoxian

From your description I'd suggest two separate Sweeps, one for each end (the constant cross-sections), and connect them with a Loft.