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Need advice for creating a sheet metal flange (non-rectangular)
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Having difficulty in creating a flange on an interior cutout that is not "nicely" rectangular.
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Onshape seams to be having a problem with wanting to put in blend reliefs during the flange creation which are confusing the issue.
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The "Automatic miter" option isn't properly mitering the overlapping intersection. So I manually entered an appropriate miter angle.
Got closer to result, but the bend reliefs still appears to be an issue. Even tried making the bend radius really small.
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I would welcome and ideas on how to get this to work.
Note: After the fact I will change the bend relief and to a "tear".
Comment: Given that incorporating a default bend relief while creating a flange can cause problems wouldn't it make sense to have the option to specify the blend relief type during flange creation?
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Onshape seams to be having a problem with wanting to put in blend reliefs during the flange creation which are confusing the issue.

The "Automatic miter" option isn't properly mitering the overlapping intersection. So I manually entered an appropriate miter angle.
Got closer to result, but the bend reliefs still appears to be an issue. Even tried making the bend radius really small.

I would welcome and ideas on how to get this to work.
Note: After the fact I will change the bend relief and to a "tear".
Comment: Given that incorporating a default bend relief while creating a flange can cause problems wouldn't it make sense to have the option to specify the blend relief type during flange creation?
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0
Answers
Step 1: Make a rectangle cutout of length and width on 3D model.
step 2:Place flange in 3D model.
step3: Cutout shape on Flat pattern.
Step 4: Use extrude and fill in the open area on Flat pattern:
Here is a link, hope this helps:
https://cad.onshape.com/documents/24889775d010d4ac601913e7/w/75742434112b999d0b7e9061/e/032eb4d144cf2c5f9188cc1c
Twitter: @BryanLAGdesign