FASTRAK MANUAL
Rev. G
56
JUNE 2012
‘N’ – *Define Tip Offsets
Syntax:
N
station
,[xoff,yoff,zoff]<>
or
N
station
<> to read back the current tip offsets
Description:
Each stylus has been factory calibrated with custom tip offsets. This is the offset
of the receiver from the tip of the stylus. The tip offsets allow the tip to act as the
measurement reference instead of the receiver coil inside the handle.
Purpose:
This command allows the user to override the factory defaults for the stylus tip
offsets. Although changing the tip offsets is not recommended, the ability to do so
is available. The command parameters are listed below:
station
1-4
xoff x-direction tip offset
yoff y-direction tip offset
zoff z-direction tip offset
Relatives:
None
Default:
Factory default tip offsets are read from the PROM inside the stylus connector on
power-up. As a result, the ‘N’ command can only override the factory defaults
during the current operational session.
Example:
If the user created a special stylus tip attachment that extended exactly one inch
from the end of the stylus, an adjustment to the tip offsets would have to be made.
To do so, the following steps should be taken.
1.
Verify that the FASTRAK system is in “inches” unit measurement by sending
the ‘u’ command.
2.
Read the factory tip offsets from the PROM in the connector by sending the
command N1<>. (A typical factory tip offset might be 2.523, 0.004, 0.03.)
3.
To add one inch to the factory calibration, type N1,3.523,0.004,0.03<>
4.
To verify that the tip offset was entered correctly, type N1<> to read it back.