Plunge Roughing

[Marker]

I am plunging out material for a motorcycle seat base mold. The Surface Rough Plunge operation is generating an unnecessary toolpath that cuts air at Z0, or whatever I set my minimum cut depth to, before it cuts to the appropriate depths relative to the surfaces and stock to leave. I am using a NCI generated toolpath. I can get it to work correctly if the surface is flat and I set my absolute cut depths to the same value, but when the surfaces are not flat, I can't keep the cut depths the same because it plunges out material that I want to keep.

 

Any ideas?

Thanks.

[Accu-Molder]

try the incremental side and set adjustement to top cut at the value you need and if you can use check surface in the area that its gouging not sure whats going on for sure so backplot and watch path closely

[Marker]

Accu-Molder,

I tried your suggestion. The tool stayed the same depth through the hole toolpath. So then I put the same value in the "adjustment to other cuts", but made it a negative and it worked for this particular situation. I'll keep "playing" with the incremental side of cut depths. I am still learning that side of it.

 

Thanks.