If I use this Effector http://www.thingiverse.com/thing:824932 .

If I use this Effector http://www.thingiverse.com/thing:824932. How to set Ae, Be, Ce? Should I use the mid point and then in the slicer I use the x and y offset for booth of them?

That’s probably what I would do, too, but I’m not interested in dual extrusion… yet.

Okay thanks.