Having never worked in a CNC shop before and learning as I go, I want to be sure I am doing this the right way.
Setting up a parting tool offset is giving my some trouble. I can determine the diameter quite easily of course but whats the normal method for getting the Z offset? I would *think* (could be wrong!) that since the parting bit is basically a rectangle you would want the corner point of the rectangle furthest from the chuck so you could accurately part off, say 1.234" of stock.
Do you guys just touch off on the front corner of the insert and the add on the width of the isnert? Or do you just use the front-ward corner of the insert and just add in the groove width when you do the parting operation in the G-code?
Basically I am doing some turning on a 1.5" piece of aluminum and I want to part of 0.916". I am using a parting holder with a 0.120" wide insert bit, just trying to figure the best way to setup the offset since adding 0.120 to the length I get from turning seems imprecise.