Can only convert imported closed Rhino polysurface into sheetmetal part with ripped joints, no bends

RK_Stille

Hi everyone,

I uploaded a part today that I want to make out of sheet metal. Its a simple part and I know it can be folded (have done it in Slicer).

Not sure why I can't do any bends from an imported closed poly surface from rhino. I can convert to sheet metal but it only allows rips (see picture)

I've tried a number of things like exploding and thickening first, making sketch planes off the surface and extruding those curves.

I imported a box (solid and poly surfaces from Rhino) and had no problems.

see screenshot for reference.

Thanks

lana

Great guess, Jason. You can verify that by selecting an edge and noticing that length measure reported in the right corner does not have a line icon next to it.

Here is how you can fix it : offset all the faces by intended thickness ( the edges between planes become lines), then build sheet metal part with thickness flipped.

Jason_S

Can you make your document public and share a link here?

I have a suspicion your 'edges' are splines and not lines. Select an edge and look in the bottom right corner to see what type of entity they are. 

RK_Stille

Thanks for your help!

Here is the link:

https://cad.onshape.com/documents/65f6fa3db9f9ad0b93b0842e/w/d238b4ebfafd866ccbe4e591/e/55a8893268ff374a4e6a6f1d

lana

Great guess, Jason. You can verify that by selecting an edge and noticing that length measure reported in the right corner does not have a line icon next to it.

Here is how you can fix it : offset all the faces by intended thickness ( the edges between planes become lines), then build sheet metal part with thickness flipped.

RK_Stille

Thanks! You all are amazing!