The alignment went well and the dial indicators are still attached. The man arrives and you demonstrate that both indicators register zeroes in all four quadrants at four points around the clock . This is termed as an eight zeroes alignment. Sometimes the term perfect is carefully voiced.

In this craft, it usually means a bolt-binding condition exists and a round bolt hole has to be made into a slotted hole by extending one side of the hole N, S, E, or W as applicable in order to shift the movable unit further in the desired direction. Note: If only a few mils areinvolved, look in the chapter: The Wagon Wheel Method. This might save the day.

This is a self-styled system of reverse engineering , a logic oriented solution to an alignment problem. In this system, what works prevails . So if a minus ( ?) 0.010" on a dial indicator should (by logic) dictate the addition of 0.005" of shims, an engineered minus sign is assigned to a constant two (2), making it an official -2 divisor for the current -0.010". Then, -.010" -2=.005" which is by virtue of not being preceded by a minus sign makes it the needed positive quantity. The .005" of shim gets added in its designated location. Much of this entire book is based on the ability to engineer and apply minus signs (or not) which per unique scenario aims these misaligned units into proper alignment.