Hi guys! I am trying to get a sketch on the outside surface of this bucket. The purpose of the sketch is so our burn table can etch on the surface to provide the location for items to be welded after it is rolled. I need the sketch to show up in the flat as well as the folded state to make sure the items align with the sketch. I can flatten the part and sketch there, but the sketch is suppressed when I go to the folded state. How can I get the same sketch (not a feature) to show up in the flat and folded state? I've attached a picture.

can.JPG


Categories: Modeling and Assemblies, Parts and Features

Comments
Last comment By: Kevin Chandler   Thu, 17 May 2018 12:31:21 GMT
Re: Sketch on a Sheet Metal Curved Surface

Thanks Ben, I think this is what I'm looking for. I performed the 'Surface Flatten' command but the only thing is I can't seem to get my sketch to project. I've attached the part. Would you mind giving it a shot?

By: Jim Panfil  Wed, 16 May 2018 19:40:32 GMT
Re: Sketch on a Sheet Metal Curved Surface

Jim,

 

It is possible to display sketch or curve entities when you use the Surface Flatten feature. The PropertyManager includes the 'Additional Entities' option which allows you to add entities to display on a flattened surface. This is useful on complex sheet metal faces or geometry that might not be flat. This is a feature only available in SOLIDWORKS Premium.

 

 

You can then export these sketches to a DXF file...

 

 

Normally, when you sketch on a sheet metal face, the software creates a ‘Transformed’ folder under the flat pattern feature. These sketches will only appear when you unsuppress the flat pattern feature. While the flat pattern feature is suppressed, the sketch that you create in the folded body is visible by default. When you unsuppress the flat pattern feature, sketches that you create in the folded state are hidden and the transformed sketches become visible.

 

 

You can then export these sketches when saving a DXF of the sheet metal body...

 

 

~Ben

By: Benjamin Modic  Wed, 16 May 2018 19:03:35 GMT
Re: Sketch on a Sheet Metal Curved Surface

Hey Jim,

 

Which sketch would you you like to project? In the example above, I used the project curve feature before using the flatten surface feature. When using the feature, under additional entities, choose the items you want to be flattened...

 

By: Benjamin Modic  Wed, 16 May 2018 19:53:55 GMT
Re: Sketch on a Sheet Metal Curved Surface

The sketch I'm trying to project is 'sketch8', last item in the feature tree. But I think you're doing the opposite of what I'm trying to do. You took a feature created in the folded state and transferred it to the flat state. I'm trying to take a sketch created in the flat and show it in the folded state.

By: Jim Panfil  Wed, 16 May 2018 20:00:27 GMT
Re: Sketch on a Sheet Metal Curved Surface

Hello,

 

How about using split line (projection) using the outline of the parts to be welded.

I haven't tested this yet to see if these split lines will survive an unfold/flatten.

 

Cheers,

 

Kevin

By: Kevin Chandler  Thu, 17 May 2018 00:57:43 GMT
Re: Sketch on a Sheet Metal Curved Surface

1-1DYSJLK wrote:

 

Hello,

 

How about using split line (projection) using the outline of the parts to be welded.

I haven't tested this yet to see if these split lines will survive an unfold/flatten.

 

Cheers,

 

Kevin

This doesn't work, the split lines remain in "space" when flattened.

I also tried an extrude cut to an offset surface (offset surface created 0.005" into the metal) for a shallow cut (sketch created from converted mating part faces).

But these cut lines didn't show when flattened, but it could be I goofed up the model while experimenting.

 

Cheers,

 

Kevin

By: Kevin Chandler  Thu, 17 May 2018 12:31:21 GMT
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