apply processing on conical surface

[ugoguido]

Hello, guys.

I need your support, I have to reproduce on the surface of a cone a repetitive pattern design but quite complicated.

what I need to get is the unrolled surface with the applied design so that my supplier can reproduce it on a plexiglass sheet.

by rewinding the sheet I will have so my decorated cone.

the problem is that starting from sheet metal I get the surface unrolled but how can I apply the pattern on the "suited" surface to the curvature?

I attach the development of the conical surface with the pattern to be applied with autocad and I thought I would use as a sketch.

can you get what I ask?

I tried them all but without result.

Thank you 1000.

 

[vespa_83]

the development of a cone is a circular sector as your figure.
the pattern should be stretched in a circular way where the center corresponds to the cone.
you should turn x,y coordinates into latitude coordinates, longitude .
some graphics program performs these stretching.

solid edge has several functions to put sketches on faces, but it is not easy to locate the right one, in fact in your case:
- is not a projection of a curve
- it is not a winding of a curve on a surface (the example of applying a label, so the pattern must already be conical), unless you cheat on the plane! !

I did a proof with sketch shape and I think it works out the molding, it is a bit complicated to explain how I did, I try with a photo and I attach the part (st6).
but it is not as from "curva" you can develop to export a dxf.
you care to make at least one piece and then clone it with the wheel respect the fire or the mirror command.

Be careful to use the sheet metal environment because it puts the fittings that here do not help to relate well the features.

 

[vespa_83]

According to me, as I thought, it might be convenient to try with a graphic program like inkscape (freeware, open source) that have tools like this: http://math.univ-lille1.fr/~barraud/inkscape/pathdeform/ I did a quick test and I couldn't but it will be a matter of making some evidence.

 

[vespa_83]

made with inkscape:you can then export to dxf (there are various options to try)

 

[ugoguido]

thanks to the help wasp_83,

the solution I found is to pass through rhinoceros, which allows you to wrap the pattern on the surface of the cone (_flow along surface).

as you can see from the attached image the result is accurate.

Obviously there are several solutions I will try yours too. I'm sorry that solid edge doesn't have a proper tool there is a similar tool.

Ugo.