3D Systems ProX 500 User Manual - page 44
3D Systems, Inc.
44
Shutting Down the MQC System
Completely
3D Systems designed the MQC System to remain
with the power on at all times . You seldom need to
power-down the system, unless:
•
You are shutting down the entire system .
•
The system requires service .
•
The system loses facility power and does not
regain it immediately .
•
The system will be idle over an extended period
of time .
To turn the system off,
1 . Check the MQC System user interface
screen to see what mode it is in .
2 . If the cycle is stopped, skip the next step .
3 . If the cycle is in Full or Local mode,
AC Power
Outlet
navigate to the Operation Mode menu, and select “Stop Cycle .”
4 . Navigate to the Setup/Service menu and then the Setup submenu . Select “System Shutdown” .
5 . At the operator panel, turn the power switch off .
6 . Go to the back side of the MQC System and open the reject powder door .
7 . Pull out the power plug from the AC inlet .
Cleaning the MQC System Before Breakout
Follow these procedures to clean the system before you print parts with your ProX 500 printer .
1 . Debris and loose powder from the MQC System can be cleaned up using a non-ignition vacuum cleaner .
2 . A clean, dry cloth can be used to wipe off excess material from any area of the machine where it is present .
Verifying Material Quantity
The approximate amount of powder required for a print job can be found on the information page in Build Setup .
To verify that there is sufficient material for the print job, you can use either of the two following methods:
1 . In Build Setup, check the MQC window in the Man Ops screen . This displays the MQC System’s status, including the amount of
available powder .
or . . .
2 . Check the MQC status in the Sinter Status window which also displays the amount of available powder .
REMOVING THE PRINT CAKE FROM THE PRINT CHAMBER
The print cake can be removed from the print chamber either before or after it has finished cooling.
CAUTION: Do not begin breakout of the parts from the print cake until the cooldown stage is complete . The
temperature must be no higher than 85 °C . The print cake can remain extremely hot for hours after a build . To prevent
burns, allow sufficient time for cool down (up to 24 hours without the nitrogen lid) before removing parts from the
print cake . The temperature of the print cake can be tested using the thermocouples in the breakout area of the MQC
system .
Where to Cool Down the Print Cake
If you cool down the print cake inside the print chamber, wait until the print cake reaches its final cooldown temperature of no more than
85 °C . If you choose to let the print cake cool down outside the print chamber, you can take it to the MQC System and either let it cool
down normally or use the nitrogen cooling lid on the side of the MQC System .
To use the nitrogen cooling lid, do the following:
•
Immediately after placing the hot print cake in the breakout area of the MQC System, place the nitrogen cooling lid onto the print
cake cylinder . Then . . .
•
use the cooling lid to do a controlled cooldown for a programmed amount of time (the default is 3 hours), or until a
programmed temperature is reached .