I have a Boxford 240 TCL lathe (The slightly newer version with the membrane keys, axis limit switches and AC spindle motor) but the tool turret doesn't appear to have any sensors or switches on it - Just a stepper motor.

I can only presume that the procedure when using the original software is to initially tell it which tool it is currently using, can anybody confirm this?

Has anybody added any sensors to tell a retrofit control when it can reverse, when a tool is indexed in position and/or which tool is currently selected? The Emco lathe turrets have sensors like this, so I was wondering if anybody had made the modifications and, if so, if they had documented their changes?