OPTI-Rough Pell Milling an open area hack

[crazy^millman]

Amazing how lacking OPTI-Rough can be at times. Roughing a feature and have a dovetail area left. Top of the dovetail area doesn't need stock left it is just clearance. I use Zero as the stock to leave for that top surface. I have the walls next to it with .025 stock to leave floor and walls. Now the top is being peel milled because it thinks it needs to leave .025 on the top of that wall. I want stock left of the floor of that wall, but don't need the .025 on the top wall because it is clearance also. Now I have to create 3 sets selection features for OPTI-Rough to achieve this task.

After adding the 3rd field I got a better motion and toolpath.

This is what we need to be looking for in our toolpaths. Efficient and clean looking motion. No wasted motion and leave stock where we need it and not worry about places where we don't.