3D Systems sPro, User Manual

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SLS p r o c e s s 8 5 B U I L D P A R T S
u s e r ’ s g u i d e c a l i b r a t i n g t h e I R s e n s o r
Ca l i b rat i n g t h e I R S e n s o r
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This is a summary. For IR calibration details, see
Sinter Help.
The SLS system can recalibrate the IR sensor
dynamically during a build. This calibration is a
quick process which occurs multiple times during
a build to compensate for sensor drift and
changing environmental conditions within the
machine.
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You must perform an initial manual IR
calibration to enable automatic, real-time
recalibration during the build. If recalibration
requires too great an adjustment, a message
pops up advising you to perform offline
calibration again when the build completes.
If you want the SLS system to do real-time IR
sensor recalibration during the build, perform a
manual IR calibration before you start the build as
described below.
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You can opt to have the SLS system simply
verify IR sensor readings rather than recalibrate.
Click the
Verification Only checkbox in the IR
Cal window to choose this option.
To disable automatic calibration
During a build, the system calibrates IR sensors
automatically unless you disable the calibration.
See Disabling Realtime Calibration in Sinter Help.
To perform manual IR calibration
1
Put the system in Manual Operations mode.
2
Load the RCM, if needed.
3
Click the IR Cal button.
4
The Manual IR Sensor Calibration dialog
box appears.
5
Click the Start button on the dialog box.
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During the calibration, an Abort button
appears; click it if you need to stop the
calibration process for any reason.
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If the RCM is above room temperature or the
blackbody is above
60 ° C , the software waits
until these cool to actually start the offline
calibration.