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1-Visitor
March 21, 2016
Question

Label on a spherical surface

  • March 21, 2016
  • 2 replies
  • 2668 views

Hi all,

Wonder if anyone can help.

I have a common situation where I need a drawing of a label (so its flat), and also need to show it on the assembled product (where it is curved around a surface). Seems from my searches that the most recommended method is to use a family table, which is fine.

The problem I am having is modelling the actual label in its assembled form! My first thought was to model it in the assembly, so I created a new part and sketched out the label on a plane, and projected it onto the surface in question. I am then able to open the part separately and have the formed projection in the part. So I now need to create the part from this projection, which is where I get stuck.

I have not used projection much in the past, but I am assuming this is just an outline that I need to create a surface on, and then make solid so I can give a thickness ? Alas I have zero experience with surface modelling so am not even sure where to start

CaptureA.PNG

Its hard to see from the image, but the "horizontal" lines have a slight curve, and so do the "vertical" lines.

Any advice ? If there is a tutorial somewhere that I can read/watch, thats fine, but I really have no idea what to be searching for and everything I have tried so far has not worked. I've read most posts/threads/forums about "curved" labels, but unfortunately they all seem to be related to curving in a single plane.

Appreciate any replies,

BR

Dave


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2 replies

1-Visitor
March 22, 2016

Look up toroidal bend.

17-Peridot
March 22, 2016

projecting curves onto surfaces is a lot more accurate then the graphics for a label.

Look up "project" and map "surface normal" so it truly wraps your defined label curves.

As for making the label model; once the label is projected, you can also trim that surface to the label.  Then thicken it in the right direction.

dfisher-21-VisitorAuthor
1-Visitor
March 22, 2016

Thanks both for your replies. The toroidal blend looks like it would have been ideal if I knew the radii of the surfaces I need to assemble to, and I still couldn't fathom out the surface thing.

In the end I did a swept blend, using the two long sides as the trajectories and the two shorter sides as the start and finish sections, then added a thickness. Worked just fine for my needs.

Small label assembled on the side:

CaptureB.PNG

Larger label part (top the assembled curved label, bottom the flat version for the drawing, but gives an idea of the curvatures):

CaptureC.PNG