OSBORNE

Guy Lautard documents a quick and easy iterative method to accurately center round stock in the milling machine - the so-called "Osborne Maneuver".

OSBORNE is a simple application designed to examine how quickly this procedure converges.

It works like this. Accurately measure the diameter of the stock.  For description purposes, let's assume that the y axis is along the 12-6 o'clock line of the stock and the x axis is along the 3-9 o'clock line.

Align the edge finder by eye to the 3 o'clock position and locate the edge of the workpiece. Now move by half the diameter towards the center of the stock along the x axis. Now, use the y axis controls to find the edge of the stock near the 12 o'clock position. Move half the diameter towards the center of the stock along the y axis.



Download
OSBORNE