Error: misclassified graph coedge - trying a cut operation where there is some coincident geometry

[bdmartens]

I am designing a block incorporating a drain.  The centre hole base point lines up with the beginning of a drainspout cut off to the side.  From what I can tell this may be the trigger for this internal error - but this detail is important.  This being said, fudging it to be off a bit did not fix the problem.

I get: 

•  Error: misclassified graph coedge - probably geometrical problem

As an error when I try a cut operation " target body "MainBase", tool "HoleCutout"

I had a similar error with the DrainSpout and DrainspoutCutout, as the cutout tool started on the face of the Drainspout, but then I extruded the cutout tool further, and that cut operation worked.

I can't seem to fudge this other HoleCutout tool to work.  I extruded it higher, and then changed the height of MainBase to put the tool extending to a different depth, but neither works, and it's frustrating as the other posts seem to suggest it is due to an internal error (rather than a design error).

The HoleCutout tool was a cylinder, and then I revolved a domed/rounded tip to it with the peak of that dome being coincident with the beginning of the Drainspout cutout allowing water to drain off to the side.

I have attached the f3d file.

[bdmartens]

This is using Fusion 2602.1.25 x86_64  on Windows 11 Pro

[KristianLaholm · Accepted solution]

I find that the problem comes from the Spline you used in Sketch4.
Replace with an Arc or horizontal constraint the lower handle of the spline.

For easier modeling I'd place the origin in the bottom center of the main body.
And it looks to me like you are working way to hard with sketching repetitive things that can be done with a pattern of feature (like the holes).

[bdmartens]

Applying a horizontal constraint to the bottom spline was the easy fix.  I'll try take this into account from the start with my next project.

Thank - you!

I'm getting better at using the pattern tools when there are lots of repetition - this one seemed almost too easy to just brute force my way through it.  Slowly I'll continue to polish my habits!