Using shell to create a flat pattern - rip corners

[steveZ5EVB]

I am trying to use shell to create a sheet metal tray, to then create a flat pattern for exporting as a DXF for laser profiling. I've attached a JPG showing an idea of the tray.

I can create the shell OK, by creating a solid then shelling to 'thickness' set in sheet metal defaults. What I can't get to work is ripping the corners; rip partly works, but won't extend the cut around the fillet, so it then doesn't develop a flat pattern.

In the past, I've simply used 'flange' to create flat patterns for trays, but this tray varies in depth, so the flanges along two sides need to taper.

[JDMather]

Attach your *.ipt file here.

[steveZ5EVB]

.ipt attached.

[JDMather · Accepted solution]

Your true Design Intent is unclear to me from the file that you Attached.

It looks nothing like the image that you attached earlier.

Can you use the standard modeling tools to get as close as you can to the true Design Intent and then attach that file here. I can then demonstrate how to use the Sheet Metal tools to achieve the geometry.

I see it now, back in a few minutes.

See Attached 2019 file.

[NigelHay · Accepted solution]

I've done similar in the past in the sheet metal environment. I created the base panel then used sketches to create the flanges detached from the base panel. You then use the fold command to join them, this creates the correct notches to allow the flat pattern to work.

[aurel_e · Accepted solution]

Is this Ok? (see attached)

[steveZ5EVB]

Hi. This is achieving what I need, but I don't understand how you done it! (Apologies, I'm a relative newcomer to Inventor).

[NigelHay · Accepted solution]

Should have said bend command rather than fold. My version attached, you can move the 'end of folded' up the browser to see how I got there. This was created in Inv2020.