Another Sketch which seems to have a broken face

[nerdnils]

Hi there,

I have a sketch with only one "island", the whole structure is closed but yet it fails to extrude into 3D with "failed to validate broken face".
Here is my file: https://ufile.io/x3tu298m

I can not find the mistake, could anybody please help me out?

Thanks in advance

[chrisb]

Hi and welcome to the forum!

The Validate Sketch tool helps to find open vertices, but what is worse, your sketch is badly constrained: repitition of dimensions, missing coiincidences, dimensions instead if geometric constraints. I didn't fix all of these, only what it needs to pad.

[drmacro]

And, by taking advantage of symmetry, there is 1/4 of the work...

Snip macro screenshot-b9ca0b.png (118.87 KiB) Viewed 695 times

[Shalmeneser]

I didn't fix all of these, only what it needs to pad.

No file

[Shalmeneser]

[chrisb]

No file

Sorry-

[chrisb]

Impressive! If the 23.3 and 23.31 should indeed be equal, then you could even save one of these by simple usage of a tangent constraint.

[Shalmeneser]

No chance !

My main problemn is not understanding the logic of the original sketch.

[chrisb]

No, like that:

[Shalmeneser]

The tangential symbol was so discret that I did not find the solution at the beginning.