Assembly doesn't section properly in drawing

[Anonymous]

Whenever i section my assembly it comes up with the error attached. I've checked that the BOM is fine and i have checked "section all parts" in the application options... Can't see any other solution on the forums!

[JDMather]

Can you attach one of the files listed in the error?

[Anonymous]

See attached

[JDMather]

Sketch1 is missisng horizontal, vertical and tangent constraints?

Sketch1 is not dimensioned?

When I add the missing dimensions - they do not make logical sense to me?

What is the purpose of Extrusion3 (cut .00001mm)?  What manufacturing process is used for this feature?

Perhaps a Split face would have been better.

Base on these observations and years of experience diagnosing issues in Inventor, I would expect to find numerous issues in the completed assembly.

Can you attach the assembly?

Edit:  Upon further investigation I discovered lines overtop of lines overtop of lines overtop of lines....

[mdavis22569 · Accepted solution]

I found the same as JD .. I remove Extrusion 3 it works fine.

However, I did it a bit different too. I did the sketch with the Bolt Circle of 372. Then made a hole on that sketch. Followed by a pattern of the hole. Vs all in 1 sketch.

[Anonymous]

I realized that i missed out the constraints... never realized that they were vital...

I've taken the sketch from a AutoCad Dwg file and copied it over

Extrusion 3 is to show in the drawing the Diameter of the area that need faced off so a bearing housing or a motor can sit flush to them... I didn't know any better way to do so

Thank You for your post

[mdavis22569]

I would make a sketch in the IDW then for that.  

Much easier in my opinion doing it on the 2d side of it. If it doesn't have any bearing on the 3D side....