Multiaxis Roughing Error

[Reko]

Hi,

 

I'm having a hard time coming up with a roughing strategy for the attached 4-axis part.

 

Multi-axis Roughing gives me an error that says, "Exception raised in calculation routine. Can not build surfaces by set of surfaces with needed tolerance."

 

I would appreciate any help with this or other multi-axis toolpaths for this part... I have it set up for a 4th axis, but I do have a 5-axis available.

 

Thanks!

[MrFish]

Heres an idea  - axis substitution

 

ftp://mastercam-cadcam.com/Mastercam_forum/X9_Files/

 

file is - sample roll

[mkd]

morph between surface got some results here

[Reko]

It seems like the CAM system would crunch the toolpath numbers more accurately for a ball nose endmill... but obviously a bullnose would be a more efficient rougher.

 

So, my question is, is it wise to use a bullnose endmill to rough multi-axis toolpaths?

 

( Specifically, like the file above... when I use a bullnose, it gouges the solid in verify )

[crazy^millman]

It seems like the CAM system would crunch the toolpath numbers more accurately for a ball nose endmill... but obviously a bullnose would be a more efficient rougher.

 

So, my question is, is it wise to use a bullnose endmill to rough multi-axis toolpaths?

 

( Specifically, like the file above... when I use a bullnose, it gouges the solid in verify )

 

Pretty much what I use all the time is a bull nose endmill. Can be as little as .015R but that makes all the difference in the world when removing a lot of material.