Result has multiple solids - can't work out why

[joshuaoc]

Hi,

I'm trying to do a linear transform on a pocket I've cut out.

At 16 occurences and 1188mm, all is fine, however when I bump it down to 1187mm, it complains with "Result has multiple solids".

I however cannot work out why that is the case, it's certainly not my intention, and as far as I can tell there's nothing within 16mm of the edge anyway, so I can't see where it could possibly be cutting!

Attached is a screenshot, and the file itself.

Cheers!

shoerack-back.FCStd

(166.28 KiB) Downloaded 24 times

[Shalmeneser]

Please follow the PINK BANNER.

[Shalmeneser]

20+1187 : cut in the top and do island parts (red in the picture) = bodieS = illegal in PartDesign wb
20+1188 : cut outside = one body

[Bance]

Count the number of pockets in your screenshot?

[edwilliams16]

Your stock is 1200 mm long. First shelf is at 20 mm - so last shelf has to be less than 1180 mm from the first one or it goes off the end.

[GeneFC]

In case it is not totally clear, it is the small teeth at the end of the overall shape that are becoming detached at certain lengths for the Linear Pattern.

If you reduce the 1188 mm to 1180 mm it works again. It would fail at 1170 mm, etc.

Gene

[joshuaoc]

Thanks all for your helpful notes!

Apologies for it being such a simple thing, the reason I fell prey to this is because I had another work piece to which I'd done the same transformation, however it didn't have those top fingers, so the 16th hole was actually outside of the body.

This didn't raise any errors seemingly, and I never counted the holes so I took that to be "16 holes and working", so I couldn't figure this one out when I did the same set of pockets here!

Anyway, thanks for the specific help, and also for the general advice I'll take from you all:

- Count your transforms if something is up!
- Manually calculated sense checks are feasible, and useful. To be honest I didn't think to even try to manually do any thinking here, just trusting that I'd parameterised it all correctly.

[freedman]

I typically make the pattern offset very small, to the point of having the pattern features stack-up, then I start to stretch things out. This is a known no error issue. There are more important things to work on so this is on the some-day list.

[IemandAnders]

I typically make the pattern offset very small, to the point of having the pattern features stack-up, then I start to stretch things out. This is a known no error issue. There are more important things to work on so this is on the some-day list.

You serious? This is not important??????
We are couple of years further and still the same error.
No error if I keep the distance very small, error when bodies are spread out.

[drmacro]

I typically make the pattern offset very small, to the point of having the pattern features stack-up, then I start to stretch things out. This is a known no error issue. There are more important things to work on so this is on the some-day list.

You serious? This is not important??????
We are couple of years further and still the same error.
No error if I keep the distance very small, error when bodies are spread out.

In FreeCAD main, the rule in Part Design is all operations must result in a single solid. It is not a error, it is defined behavior.

In the Linkstage3 FreeCAD, you can make multiple solids in a Part Design Body.