cone cutter triggers some sort of singularity

[pppalain]

Blendercam uses openlib for drop cutter.

Use of opencamlib triggers some form of singularity when using the cone cutter.

Other cutters tested and appear to work well including the similar cylinder cone with the cylinder reduced to very small ballcone

[vespakoen]

Can you provide the 3d model and perhaps a screenshot of the settings used?