Split body isn't working

[tenmilez]

I'm trying to split this object into 4 pieces. I get this error if I include any opposing corners. So I can split any one corner or any 2 adjacent corners, but as soon as I do an opposite corner it complains. 

I could split each corner individually, then go back and rejoin the parts that got split that shouldn't have (because it's a rectangle it'll split the opposite sides incorrectly if not constrained and I haven't figured that part out yet), but I'd rather know why this is complaining as it seems like it should work; the preview seems to do exactly what I want it to do. 

[TheCADWhisperer]

Can you File>Export your *.f3d file to your local drive and then Attach it here to a Reply?

[tenmilez]

Attached

[davebYYPCU]

Referring just to the second picture, 

Your setup isn’t working, because any one of the cutters, does not produce a 2 or more body result.  One corner at a time without extension doesn’t work either, but I think you know that part.

Joining those four cutting plates to be one cutter, should work.

Front corner raises my eyebrows.

Might help....

[davebYYPCU]

Works as expected, one Split Body Command

Might help....

[tenmilez]

Did you change the sketch or change only the split operation? Is there some reason that it shouldn't work using the sketch that I had? 

[chrisplyler]

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@tenmilez wrote:

Is there some reason that it shouldn't work using the sketch that I had? 

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Yes.

Since your shape is a loop...any SINGLE cut at a corner does not result in TWO or more bodies. If you cut a loop at one place, it's still a single body loop.

The solution is to cut it at at least two places with one cutting tool, dividing the loop into two separate bodies. You can do this multiple times, using multiple cutting tools, all within a single operation...but AT LEAST one of the cutting tools must act in such a way as to produce two or more separate bodies. In the case of your original sketch, you have four cutting tools, but none of them on it's own can divide the loop into two separate bodies, so it fails as soon as it tries to process the first of the four cuts. It could work if Fusion was smart enough to process them all as a group, but even though you select them all, in the background they get processed one at a time.

[davebYYPCU]

I modified your sketch, with Sketch > Modify > Extend, to join the sketch lines.

After posting my earlier reply, I explored the rest of your bodies, and 

I recommend you become familiar with Rule No. 1.  In your case will save a heap of work to make one of each part and then duplicate with patterns.

Might help....