Failed to validate broken face

[eexpss]

When I changed a sketch size, another pad based on it show this.
Failed to validate broken face (but must be excuted) <- tip message show this line.

How can I find the reason.

[chrisb]

You don't show the complete tree, but is it possible, that you have forked the model? I.e. you have two different sketches based on the same state, Pad in your case.

[eexpss]

simple relation.

[chrisb]

The element that depends on Array, Pocket001, Pocket, and Pad, is that a group or what? Please excuse that question but my chinese (?) is worse than my english. If so you might have run into the so called topological naming problem as discussed here: https://forum.freecadweb.org/viewtopic. ... 14#p155014. There are hints included how to repair your model.

[NormandC]

There shouldn't be a problem if it's a group, since a group is after all only a folder that orders items in the tree.

But if it's a Boolean operation like Part Union, then I agree it's a problem, because Pad, Pocket, Pocket001 etc. are all different states in the creation of a single part that culminates with the uppermost item with 5 Chinese characters.

The "failed to validate broken face" error means that the profile in the sketch no longer contains a closed profile. Have you edited it to see how it looks?

This is very difficult to troubleshoot without the file.

[eexpss]

I send the file as attachment, but "File too large". 1.9M size.

I'm not sure if your system is able to correctly identify the parts with Chinese, or open the file, or I will delete some parts and upload them.

I had deleted most part, the file still 1.8M. seems Array take so many space, so I deleted it. I changed all name to English.

The step is:

Change Constraint3 (3.2mm), then Error comes.

[NormandC]

OK, "Slot" is a group, no problem here.

As I previously said, your change in the "ChangeThis" sketch made the Hole1 sketch invalid. Have you actually tried to edit Hole1? If for example you reduced the dimension of the profile in the first sketch, it could simply be that the circle is now outside of the Pad and the Pocket tries to work in empty space.

[NormandC]

Doh! Didn't notice you attached your file.

Now downloading and checking.

[NormandC]

Just opening Hole1 the problem is obvious.

[eexpss]

NormandC, thanks. chrisb, thanks.

You are too careful. You've found such a small line.

So we can say, which part of the warning, the problem must be comes from the lower layer's part, right?