'inconsistent graph vertices' when trying to extrude

[tjb1305]

I am trying to extrude from this sketch and every time I try to, I get this error and it doesn't let me. Any help? Thanks!

[subversivespeed]

Are any of the sketch elements for this extrude from a projected line element? I had to redraw some of the sketches manually without using a projected sketch element and then it worked. This may be a sketch line properties bug introduced in the last update on 27Nov involving projected sketch elements lines and curves..

[subversivespeed]

One trick is to use the original sketch and attempt to use "TWO SIDES" on the extrusion. For some reason that has seemed to work for me on a few occasions when I have got this error. 

A failsafe way is to make a new sketch on a new plane that has the same geometry as the original, and attempt to extrude that.

I had an issue where extrude failed on a particular sketch.. I edited and drew the geometry by hand and attempted to extrude and it failed again.

I went to a new sketch, drew the geometry by hand, and was able to successfully extrude the geometry on that particular body.

I ran into another extrude related failure where redrawing the sketch on the body plane failed.. I solved it by making a new plane that was offset from the original plane, and redrew the geometry, and then the extrude was successful. 

[tjb1305 · Accepted solution]

I figured it out. Since it was an STL with a LOT of trianlges, a lot of the faces I was trying to cut were almost coincidence with the part that was cutting them, leading to this error. I actually was able to deduce this when I instead extruded my geometry as a body, then tried to boolean combine to take my cut and it told me the faces were too close to coincidence. To fix this I just put a 0.001" offset on my cutting body and it worked!

[subversivespeed]

You prlly could have used the offset plane-sketch trick also. It would have done roughly the same thing. Glad you got it!