Here is a fun one

[KWiK]

Preview the vcarve as it is, and notice it misses the 5th from the center on the top left. Try editing the V carve and selecting all vectors. After you get tired of watching the line go back and forth cancel out of it. and preview. Sometimes I get cuts all the way through. The only semi efficient way I have figured out to cut this is to select inner and outer ones, skipping one each selection. Then do another Vcarve and select the other ones.

[highpockets]

Try using Vector Validator, there are 1000 zero length spans once you get that fixed there are 119 intersections that need to be addressed.

[KWiK]

Thanks. I forgot about the validator. But after fixing the zero length???? vectors, the intersections I zoomed in on , are not intersecting.

[highpockets]

Selected one of the offending vectors went into node edit mode and looked for Intersections. I didn't find any, but I could have missed it. There are a lot of nodes per vector.

After fixing all the zero length spans, select all vectors, click on "Curve Fit" from Edit Objects group of tools. I used Bezier Curves, .01 Tolerance and checked "Replace selected vectors", click Preview the OK.

Go back to Vector Validator and Search All again. This time you should come up with a smaller number of Intersections. If you look close these are intersecting and need to be fixed.

[KWiK]

I agree there are a lot of nodes, but it still seems to me if there was truly an intersection you would be able to see it.

[Adrian]

They may not actually intersect when you zoom in (as the file is before any Fit to Curve options) but they are so close they can't be measured using 4 decimal places and all computer operations have to work to some level of tolerance so as far as the software is concerned they are intersecting.