Acu-Rite CNC 3500i User Manual

7 Programming: Canned Cycles, sub-programs

You must: 



Load the tool in the spindle and call up that tools offset.



Know the distance from the top of the probe stylus down you have 
to move so that the largest part of the tool diameter is even with the 
side of the probe stylus for diameter measurement. That value is 
placed in E if different from the default 0.1" (2.54 mm).



Position the tool over the probe stylus so that the tooth that sticks 
down the furthest is directly over the center of the probe stylus and 
above the stylus less than 0.200 (5.08 mm).

To measure the tool diameter:



Jog the tool to the top of the probe stylus so that the tooth that 
sticks down the furthest is directly over the center of the probe 
stylus.

OvrSlw
Feed

S

This is the override for the slow feedrate 
that was set in the machine setup 
parameter ZFirstPickFeedRate_Slow. This 
is used for the same reason as the M cycle 
parameter. This can only be set slower. 
Trying to set this higher will result in the 
software using the original feedrate. 
(Optional)

OvrRPM

R

This is the override for the RPM that was 
set in the machine setup parameter 
calibAndToolMeasurementRPM. This is 
used for the same reason as the M cycle 
parameter. This can only be set slower. 
Trying to set this higher will result in the 
software using the original RPM. (Optional)

Large tools can result in probe damage if the feedrate is 
set too fast. For this reason, the cycle parameters: M, S, 
and R have been added to enable the programmer/
operator to override the values in the machine setup 
parameters for the specific tool being checked or set.