Corner cuts

[rchipper]

Is there a way to control the amount of material the tool takes when rounding corners in the Dynamic mill tool paths? With the step over set to 12% the straights are fine but you can see that stock removal increases on the corners. Several times when holding thin parts the material pulled out of the jaws because the tool takes too much material when rounding corners. ??

[Myth Project]

I noticed the same issue, as a result I tend to lean towards using a normal contour and trim the toolpath so that I can eliminate some of the wasted travel.  But hopefully someone more knowledgeable will respond so that we may both learn something.  

[JMahon]

I think that could be in your arc/filter tolerance.

[civiceg]

http://www.emastercam.com/board/topic/79674-problem-with-dynamic-core-milling/

Should answer your question,  however I increase my tolerance when roughing and carefully watch the cuts, watching for unanticipated large stopovers. Some programs would be unmanageable if I roughed with a .001 filter. 

[rchipper]

Thank you for the input.

I really like the Dynamic cycles except for the corner thing. I have tried offsetting the first pass and reducing the feed at the start and that does seem to help.

One thing I fight the most with the Dynamic cycles is getting operators to trust it. They see the speed and feed and instantly avoid running the cycle or they "used" to slow everything down which would result in cruddy tool performance. Once they open their mind and try it, they are on board. Anyhow, thanks again. I love this place.

[civiceg]

I face the same issues, except its with programmers too. I laugh every time I see a job programmed with a high speed rougher. 

[Matthew Hajicek - Singularity]

You might try area roughing instead of dynamic rouging if you want constant engagement around corners.

[rchipper]

Thanks Matthew I will check that out.