Re: G-code help

["Hassan Rabe" <rabeh-at-student.gvsu.edu>]

Hi Ray,
actually, the little move is to put the Ballbar in the active mode...
this is the way how it works. the two far ends of the ballbar are not
active, so you set the initial distance from
the acclaimed zero position to a distance were the ballbar is not active
then the program will pause at M00
at this time put the ballbar in position between the spindle and the zero
point and set up the ballbar software to
begin taking data...or should I say...receiving data once the ball bar is in
the active mode.
so the little move is to position the end of the ballbar to a place where it
will send the data to the computer
its a very clever way to maintain the accuracy of the data..now the
duplicate 360 degrees are 180 degrees warming up and getting the
speed and acceleration for one axis 360 degrees taking data, and 180 degrees
to insure that the last data that where taken in the end are at the speed
and acceleration required.
I would be happy to send you the results.
the ballbar is very sensitive to any change the distance between the two
balls ( in the range of 1 micrometer) , and because the software analysis
the data assuming that there were no movement in the Z axis and that all the
change in the diameter is an error from the X or the Y axis, so changing the
Z value will affect the integrity of the data so it will affect the
analysis.
I hope that will give you an idea of the way the program should behave!!

Hassan