Containment boundaries in core roughing not working??

[Bruce Caulley]

Morning all,

This toolpath appears to be ignoring the switch to stay inside the containment boundary. We have it working, but needed to tell it to stay outside the boundary with a negative offset equivalent to the tool diameter.

 

 

Bruce

[Yogesh K. Raman]

quote:

---

stay inside the containment boundary

---

isn't this what the other roughing toolpath (area clearance) supposed to do?

[Jack Neelands™]

is it on the ftp site bruce?

[Mcam Nut]

I just did that this morning, a surface high speed raster, and a surface rough pocket, and i had my containment to inside with .02 left, I had no problems, but i did notice if i tried to check additional offset, it would switch to total offset, and then go off the center of tool -.02

[Mcam Nut]

sorry its called add offset distance to tool radius, make sure there is no check in there, i just did this in a core roughing pass and the same thing happened to me with it checked, but unchecked it works fine. hope this helps.

[kamman25]

Bruce, did you ever figure out what was wrong with this path? We are running into the same problem with it.

[Bruce Caulley]

No, never figured it out. :shrug:

[Jack Neelands™]

Morning Bruce

 

If i may be so bold as to inquire

Do you have a depth of cuts button in the toolpath as Im not in front of the work puter right now..

 

and if so did you select your depths or did you let it go to default?

[Jack Neelands™]

I found with roughing surface pockets I was forced to select my start at below the top by .0025 mm or .001" to prevent it from going outside the boundry and sometimes the reverse can happen if I dont select it to go below my lowest surface that im cutting with a core/cavity

toolpath

[Surface]

It's been my experience with core-rough, the containment boundary does little to control the entry/exit point, but once it is cutting, it will maintain the containment boundry's integrity.

If you need to control the places where the entry/exit occurs i.e. off the part, your going to need to use a "dummy" surface. Or an alternitive method, which is more like the traditional surface/rough/pocket, is to use highspeed/area-clearance.