Thank you Jay!!!!!

[Jack Neelands™]

gobsmacked i tell yah...Gentlemen.....and ladies(for the politically direct)..... A solution has been found ...i have been harrassing, for the most part, anybody and everybody on here whom might have a solution to cutting some undercuts on a 4th axis Okuma...to no avail i bashed me head against the wall and so did others that tried to help me im sure ....I will take the time to thank them as well.... (see credits below)

 

 

all in short i tried to cut with five axis flow and found ram and memory errors when i tried to get a decent finish

 

 

 

 

Jays solution was something that none of us here would have even thought of....... (a lollypop cutter as he called it)

 

 

 

 

and he came up with a simple toolpath that takes like 5 min to generate using surface finish flowline using 3 axis with x axis on the rotary...well im off to my mituibishi dealer now and we are going to be buying one or two of these cutters that we look at occasionally in the catalog and laugh at thinking ...what the hell would i use that for?

 

 

And thanks again to everybody for your support in this matter!!!!!!

 

 

*****no humans were hurt in this promotion******

[Hardmill]

 

 

PEACE

[John Summers]

Another solution would be to rotate the part so that the surface was not closed. I think you can do it all with a ball end mill. I need to look at it a little longer, and I will send you the solution shortly. There may be some parts of the wall where this won't work.

[cadcam]

Jack Thank for the nice words, I just wanted to help you succed if I could by giveing you little help if I could.

[cadcam]

after looking at this some I think 5axis flow with the right tilt to keep the tool from hitting also may work.

 

What you got John I like more then one way to skin the cat if possable.

[John Summers]

The straight wall can be cut with SWARF5AX in the 4 axis mode, but the surfaces are kind of messy. The fillet floor is worse. It looks like there's some bumps in it. At any rate, the upper part of the fillet right under the ruled surface wall will pose some problems. It needs a special 4-axis offset working from a 5-axis flowline toolpath. This gives you points on surface and normals to work from. More later.