2D Core Mill Lead In Radius?!?!

[Ecmdrw5]

Does anyone know how to get rid of the Lead In Radius in the Z direction that mastercram puts in at the beginning of each pass of the Core Mill cycle. It's causing my program to be tooooo large for the machine I'm trying to put this job on.

[Rstewart]

In the transitions page of 2D HST core mill, try changing to profile ramp at desired feed rate.
Use no Z clearance with a steep plunge angle (possibly 90 would be a direct plunge).......

There are other good 2D HST toolpaths like Dynamic Core Mill that work better in X5.

[Ecmdrw5]

Thanks for responding. I've tried doing that but those pesky radi are still there.

[Rstewart]

Ok, gimmie a minute to play with it....

[Rstewart]

Not gonna happen..... This toolpath was designed to cut like that.

There are plenty of other paths you can go with. Anytime you can use one of the Dynamic paths, your gonna be better off.

Which Ver of Mastercam are you using? Whats your part look like? I could probably help you out if You can share your file.

[Ecmdrw5]

I just switched to the dynamic core mill toolpath. It'll work.