How to achieve a Sheet Metal bend with interior unbent tab?

jason_kleban

I'm trying to create this flat support that is not bent inside a bend.  I get the visual effect, but breaks the part in two and the sheet metal drawing "cannot be resolved."  Even thought the sketch has lines that can break up the face, I can't seem to select less than the entire planar face of the sheet metal model to bend.

I tried other stuff like unioning the parts and extrude-removing the interior relief cut, but no improvements.

https://cad.onshape.com/documents/fab008a0e9d313f824d72e7f/w/3ed034549eefde86d2d22811/e/fc39c8ded4e8c4fa42d68e96?renderMode=0&uiState=66bc96a5b7561231e9cbad6a

bryan_lagrange

Here is a quick and way to achieve this with little effort.

1) use the finish sheet metal command

2) boolean the 2 pieces together

3) convert the part with sheet metal tool/ thicken with tangent propagation selected and select your bends do show angle and bend lines

4) delete original part

Side note: Onshape keeps the original flat but your new flat should be under sheet metal too,

https://cad.onshape.com/documents/d3e1590daa3ba8e0d3126b06/w/a2af88fbfac1957241a43bb8/e/32ff660150e65600227aff5d

Hope this helps

jason_kleban

Thanks!  But your version's drawing still says "failed to resolve part".  Is it unrelated?

Caden_Armstrong

You can do it without finishing the sheet metal part.

- Generate the base part, but without that cutout section
- Use boolean to remove the cutout section in bent form (make sure you cut all the way back to the flat face section)
- Use tab to generate that tab

https://cad.onshape.com/documents/198dba6be834e9b022244790/w/e7ce761895817e7dd6d2f828/e/985c837d49715f21ad3aa0d0
(Its not perfect but you get the idea)

bryan_lagrange

@jason_kleban this is what I am getting