under cutting with a lollipop

[Ballnose Bill]

I cannot get my lollipop mill to undercut this radius on the inside of a bore. I have read at least 20 posts and it seems really simple but I still have zero success here. I have a solid model with a fillet generated to blend the intersecting .750" dia hole to the 1.750" diameter bore. I am using finish flowline and the ball refuses to cut on the topside of the tool. I have tried finish contour but that is even more difficult for me to comprehend and I have read flowline on almost every post that touches on this. please help what am I doing wrong is there a tab to allow for undercuts or what. I have the tool comped to the center and my cutting method id spiral. thanks a bunch kinda feelin dumb this morning

TEST.MCX-7

[Guest]

I didn't lock it all down and clean it up but this will show that your selected tool size the the biggest obstacle

 

You really need to see if you can use something smaller

 

You can see nice smooth motion with a 3/8 tool

[Ballnose Bill]

You guys are cool! When I grow up.....

Thanks man, I'll dissect that and learn a couple new tricks.

[Guest]

To get your tool into and out of the cut without gouging you can use these

[Oscar R.]

Had to do one like this not to long ago. I used a method like what JParis described above. Worked great.

Just be aware that your tool may want to retract at some point while it's still undercutting so keep an eye out for gouging.

[Jayson Kramer]

Most of the time with Lollipop tools I see with most is trying to use to big of tool to fit in the area to give any path.

[Machineguy]

Oscar,

That was supposed to be fixed with the latest "hotfix" for Ver 7.

I had that issue witha flowline path, until my dealer found I didn't have the hotfix installed.

 

Machineguy