1. Home
  2. Solidworks CAD Design software
  3. using multiple profiles on sweeps

using multiple profiles on sweeps

Hi.

I am using 2004, and I am trying to create a picture frame shaped part where there is a different profile for each of the 4 sides. It is easy to define a rectangular path, and one profile and have the corners miter properly, but if I want to have one of the sides of this frame a different profile, I can't seem to make it work. For example, consider a rectangular frame with an air-foil like profile for three sides, with the remaining side having a similar profile, just wider. How would you do that with sweep and have the "corners" resolve properly.

Thanks, David Wurmfeld.

Reply to
fred
Loading thread data ...

Use 2 guide lines and constrain the profile sketch to both of them one representing the inside and the other representing the outside. If they are offset it should miter like you wish.

Corey

Reply to
Corey Scheich

Ok that won't really work. How about drawing both the inside rectangle of the frame and the inside of the frame sketch your first side of the frame and extrude to the corresponding outside length. Then make a cut at the propper miter. and sketch the second side using the mitered corner convert entities and extrude using the second line as the direction and the length. Repeat until you have a propper frame.

Reply to
Corey Scheich

This was discussed some time ago. Ed Eaton used it as an illustration of why sweeps aren't such a good idea some times. The sweep basically automates a loft for you . You can see the loft profiles that it generates by clicking at the little spectacles at the bottom of the guide curves box, then rolling through them. When you think about it, it's a miracle that sweeps work at all.

Jerry Steiger Tripod Data Systems

Reply to
Jerry Steiger

Did you try a loft? Maybe use Derived Sketches for similiar sketches too.

Ken

Reply to
kema

Try a sweep around 3 sides, then miter the ends with a cut and do an extrude up to surface. I don't think you'll find a way to do this with a single sweep.

formatting link
If all 4 sides had different profiles, I would do 4 extrude features.

matt

"fred" wrote in news:xKbUb.29670$ snipped-for-privacy@twister.tampabay.rr.com:

Reply to
matt

I'm having trouble imagining it in the real world. I can see the corners mitering, but if one of the profiles is different, doesn't the transition have to be some sort of blend or something? Or a gap?

Now, you CAN have a different profile along one segment and everything connecting with no gap if the miter angle doesn't connect with the opposite corner. For instance, on a square, the upper mitre would have a 50-deg or

60-deg angle instead of 45-deg. In that case, the easiest is to sweep the 3 sides around a U, chop the 50/60-deg mitre at the top, then loft from face to face to create the top section (no guide curves necessary, no start or end tangency)

Please tell me how far off I am.

-Ed

Reply to
Edward T Eaton

PolyTech Forum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.