Editing sheet metal in flat

ofer_liberman

I'm facing this issue with sheet metal designing since it's being done when it's already bent.
Any tips?

bryan_lagrange

Can you post the link to review the part?

Not sure what you are looing for.

option A:


option b:

option c:

bryan_lagrange

Here is the example of the cut in the flat up to the bend line. Like @glen_dewsbury mentioned you would open the flat pattern window and create a sketch there.

https://cad.onshape.com/documents/86143acc52aea1d605378f44/w/8d0d6e407c5cc8cbec183f8b/e/79a7c658b4e10a1795f2c1b9

glen_dewsbury

Ofer. Don't forget that you can roll back in the feature tree to before the 'finish sheet metal model' to make adjustments with out loosing the finished sheet metal model and other features in between.

matthew_stacy

@ofer_liberman, the issue may be that 45'ish degree chamfer, which intersects the bend.  Can you make this document public and share the URL?

bryan_lagrange

Can you post the link to review the part?

Not sure what you are looing for.

option A:


option b:

option c:

glen_dewsbury

If you're looking for a edge that blends through the bend. Try building the part wider than needed and trim back on the flat pattern.
https://cad.onshape.com/documents/12b0679a712bc6f544f72c07/w/67e973d9c8c7d9393a467fa0/e/ef369ebb7ce4e808d54a9d62

ofer_liberman

matthew_stacy said:

@ofer_liberman, the issue may be that 45'ish degree chamfer, which intersects the bend.  Can you make this document public and share the URL?

https://cad.onshape.com/documents/9923a51553903c4e2d3c90e3/w/ca163c507a804753c56e986e/e/66a43bf08bf7b9f165f7b287

I couldn't find a way to flatten it in order to cut it like in option b., it, the way I would normally do on SolidWorks.

glen_dewsbury

There is a sheet metal tab on the right side of your screen. When open you'll see the flat part and bend table. From there you can select the flat surface to sketch on. When you hit extrude it will default to remove.

bryan_lagrange

Here is the example of the cut in the flat up to the bend line. Like @glen_dewsbury mentioned you would open the flat pattern window and create a sketch there.

https://cad.onshape.com/documents/86143acc52aea1d605378f44/w/8d0d6e407c5cc8cbec183f8b/e/79a7c658b4e10a1795f2c1b9

ofer_liberman

matthew_stacy said:

@ofer_liberman, the issue may be that 45'ish degree chamfer, which intersects the bend.  Can you make this document public and share the URL?

Bless you Matthew, was anything but intuitive (plus I pressed the 'finish sheet metal model' which screwed any attempts like your explanation \-/)

ofer_liberman

bryan_lagrange said:

Here is the example of the cut in the flat up to the bend line. Like @glen_dewsbury mentioned you would open the flat pattern window and create a sketch there.

https://cad.onshape.com/documents/86143acc52aea1d605378f44/w/8d0d6e407c5cc8cbec183f8b/e/79a7c658b4e10a1795f2c1b9

Bless you Bryan, was anything but intuitive (plus I pressed the 'finish sheet metal model' which screwed any attempts like your explanation \-/)

glen_dewsbury

Ofer. Don't forget that you can roll back in the feature tree to before the 'finish sheet metal model' to make adjustments with out loosing the finished sheet metal model and other features in between.

ofer_liberman

glen_dewsbury said:

Ofer. Don't forget that you can roll back in the feature tree to before the 'finish sheet metal model' to make adjustments with out loosing the finished sheet metal model and other features in between.

Here's another issue I'm meeting - I made a change to my model and added a new section to it, tried to apply the 'boolean' feature but, it doesn't seem to unify the two parts - with 'keep tools' ticked or not.. 


https://cad.onshape.com/documents/9923a51553903c4e2d3c90e3/w/ca163c507a804753c56e986e/e/66a43bf08bf7b9f165f7b287?renderMode=0&uiState=6346f87940b40c0a16c3b6a5

eric_pesty

Not sure why but boolean doesn't work on sheet metal parts (there are a number of things that can't be done in sheet metal parts such as split face, etc).
You just have to keep adding to your initial part.

bryan_lagrange

@ofer_liberman not sure what you are looking to do with part 2.

If you want to extend that flange instead of an extrude after sketch 11 you could use move face and extend the flange or you could have drawn sketch11 with the extra you needed  and used the tab function.

If  you are looking to get rid of part 2 just use the delete part option.

If you are looking to add a straight area at the end of the flange to use to gauge against the stop of a press brake and then remove this area after bending then I would suggest the break off tab feature script for this.

Here is your model with that feature script:

https://cad.onshape.com/documents/9f7d6fdf7ca4f8a063b7f107/w/cc83272740c6be2ed35cecb6/e/7cf3616abc1a4143abf4fe70

ofer_liberman

eric_pesty said:

Not sure why but boolean doesn't work on sheet metal parts (there are a number of things that can't be done in sheet metal parts such as split face, etc).
You just have to keep adding to your initial part.

It didn't work Eric, 'merge' showed an error.. I'm still trying to work around it and find the 'correct' way to do it on this platform.
Thanks for your answer