Zero Alignment Tool, for finding top dead center of a round object (bowling ball in this case) on a cross slide table mounted in a drill press.

There was another ZAT i found on Thingiverse: https://www.thingiverse.com/thing:1971036

However, i needed one with a longer shaft and a difference design to allow finer zeroing.

This one has a longer 6" shaft length and is 1/2" diameter making is stronger.

Additionally, the radius of the arc is NOT the actual ball diameter, it is only supposed to the touch the ball on the end points.

Printed in PLA @ 50% infill for strength.