Same thing here but my toolpath is different. Probably due to the tool specs?

Dave

And here's .100 clearance cutting into the ball end and some of the body:

Dave


EDIT: and some of the body

It seems to clear up at .010 clearance:

Dave

Ok, last one, .025 seems to be the last one that cuts into the body of the part (shown below).

.020 seems to look good.

Dave

EDIT: also got another memory leak when closing LT this time as well-

Hi Dave,
 Thanks for trying this on yours.
There is definitely something corrupt about this dxf but I cannot for the life of me find it.
It was drawn with Hanks CadStd using 3 pt. arcs.
I can draw similar shapes in AC using the same arcs and it works fine.
Even at 0.0 clearance, it's not right...and the bigger the clearance, the worse it gets.
This is a goofy one.
RC

Yep, that dxf is perfect for me-

Dave

Dave,
  If you don't mind, here is just ONE more ...then I gotta go.
3 simple 3pt arcs. Works perfectly in "other" CAM. 
Works well also if drawn the same way with "other" CAD. 

Please post your results,
Thanks.
RC 

Hi Guys:

  Some DXF's drawn primarily with arcs do generate goofiness, its not the DXF< its LTurn having trouble figuring out whats inside and whats outside.
Im working on solutions, but till then playing with numbers as youve been doing is the correct way to go, its all incredibly complex to do some of this stuff,
cant belive how bad it truly is at times. LOL..

Art

Thanks for mentioning that ART.
That last shut-down I got was corrected by clipping this end at the origin.
It's less than .00002 units long !
After clipping it........it works FINE.

Thanks again,
RC

Thx.. 

 That does seem a clipping issue rather than a inside/outside one. The rate this program is proceeding is directly due to all the work you guys have done on the dxf analysis, its really helping me. Just a note to say I truly appreciate it. Youve saved me dozens of hours of debugging. Way to Go!

Art