Multiple rip and missing sections

[rsgallo]

I am new to Inventor.  I am trying to flatten a shell. It is pressure vessel component. I can rip it and unfold just fine, but the final part, when built, is too big to mfg in one piece. I noted that multiple rips are supported and I can do two rips fine. I basically have a top half and bottom half. But when I flatten it, one half is missing. I stumbled upon "unfold". I can do that to both halves and have them as flat plates seperated in space in one .ipt. . If I try to create 2D drawings, one half is missing. I can't find it to create projections in a dwg.  I've assumed this might work better if I created an assembly of the 2 halves, but haven't been able to erase half as ripped and save as(pt1, pt2), to create the two parts to the assy.  Any ideas?

[JDMather]

I would do Derived Components to get the flats.

[rsgallo]

I tried your suggestion.  It still treats the model as one part, even though it is ripped into two parts.  I could not derive one half from the other.  I've included the part file for perusal. Am I missing something?

Thanks,

[PaulMunford]

JD is suggesting tha youuse your origional part as a master part, which will control two derived parts.

Create the split in your master part - being caerful to make sure that you chose the 'New Body' option.

Now use the make components tool to create two derived parts, each containing a reference to your origional master part.

Each of these parts should flattern sucessfully.

[rajeshindi]

please refer to the attachment.

I have just followed the previous 2 peoples instructions.

[rsgallo]

I gather I should use "split" with the model, instead of "rip" as a sheet metal function.  I tried that, but when I attempt to derive parts, or make component,  there is still only one solid available and it is the total model.

rageshindi, I cannot open the file you sent back.  A dependent file is missing.

Thanks,

[JDMather]

Nothing you have done makes sense to me?
I would start over using obvious symmetry about the origin
see http://home.pct.edu/~jmather/skillsusa%20university.pdf

your first sketch isn't constrained and it looks like you are doing too much work

(see attached)

This is a good example of why Inventor Fusion should never have seen the light of day.

[rsgallo · Accepted solution]

It is true the drawing was cluttered with various trial and error.  I need to learn more about drawing constraints. 

I had some phone support due me on my upgrade purchase, so I called.  Nothing wrong with my file.  Yes, it is "spit" in the model space, not "rip" in sheetmetal.  After splitting, then one must "manage"> "make component".  The halves must be selected to show up in the Make Components window.  This is what I was missing. I saw none or one solid and had no idea what to do.  Thanks for your help.

[JDMather]

In addition to getting the sketches  constrained/dimensioned - also take a look at how the holes were placed in the inclined plane (check in derived flat pattern).  They are not perpendicular to the face as is.