Bug with pocket allowance in 8.5

[LittleGreyMan]

Hello,

I am using 8.517 and I have a strange behaviour trying to cut a groove with negative allowance.

There are two rectangles, a large one and one which width is equal to the tool diameter. With the negative allowance, Aspire is able to cut this groove. But in this cas, it does it without allowance.

I checked in V9 demo and it is OK, so it seems this is a bug. I'm surprised nobody ever noticed that, so can someone confirm if I am missing something?

TIA

[Adrian]

Well if it's not doing it in 9 but is in 8.5 then someone must have noticed it.

[LittleGreyMan]

Adrian, making fun of weak minds is not fair

I meant of course it's strange nobody noticed it before 8.517.

[Jozua]

With the negative allowance, Aspire is able to cut this groove. But in this cas, it does it without allowance.

I am also using Aspire 8.517
I am not sure what the diameter of your end mill is. If I try a 4 mm end mill I get the same result. However when I select a 1/8 inch (3.175 mm) end mill it cuts both the pocket allowance as expected.

[LittleGreyMan]

Thanks both of you: Jozua for confirming it's not me and Adrian for making me laugh.