Strange undercut toolpath enerated with ⌀11mm R1 45deg Dovetail vs ⌀13 45deg Dov

[rzi666]

I'm having a hard time to understand if I'm doing something wrong or if there is some strange feature quirk when undercutting using a dovetail with a radius. 

If I'm generating non undercut ramp toolpaths with the 11mmR1 it's all nice and clean. So, why does the undercut generate these strange things?

Undercut with 11mm R1 45deg DovetailUndercut with 13mm 45deg dovetail

[rzi666 · Accepted solution]

Checking "contact point boundry" fixed it. 😃