I have a sheet skin flat pattern with cutouts that need to be rolled to a 76 inch radius, is there any way to project the flat pattern onto a 76 inch radius surface keeping the true (geodesic) profile and cutout lengths correct??
Rolled skin from flat pattern
Jun 09, 2004
8 Replies
Have you looked at the wrap function in 04? If you don't have access to that, there are some methods using sheet metal that I don't remember well right now. Maybe some sheet metal guru can jump in.
Thanks Dale, just crashed 3 times trying to use it, but if it was to work it looks like it does the job.
Glad I could help. I think.
I'm glad you could help too, because I wasn't so sure what the question was after you answered it and he accepted.
Mr. Pickles
I *think* I know what you are trying to do and I have done it a lot with sheetmetal parts. I have generated some pretty wonky laser-cut flat-patterns of rolled snow plow moldboards, and it seems to work just fine.
What are you trying to do?
Markus.
I emailed a part that I think does what you're after.
Try the following: Start with a rectangular sketch where L = (pi)*76*2. Then use Insert-Sheet Metal-Base Flange. Put in your punched holes and cutouts. Start a sketch and put a vertical line across the middle of the flat part face. Finally, Insert-Sheet Metal-Sketched Bend and change the radius from `default' to 75.9999...., and change the angle from 90 to 359.
Your cutouts will be slightly distorted in the rolled state, and straight in the flat state. If that is not your intent or manufacturing process, start with smaller circle cutouts instead, then after the Sketched Bend has been added, use the temp axis or centers of the small holes, to place and align new cutout features of the correct size, to the locations.
For consideration, DesignSmith
Thanks, I tried it and it asks for a fixed face in the Bend Parameters selection box when creating the sketched bend, what do I select?
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