3D Systems sPro, User Manual

Page: 59 / 280

SLS p r o c e s s 5 9 P R E P A R E T O B U I L D
u s e r ’ s g u i d e c l e a n i n g a n d c h e c k i n g e q u i p m e n t
C l e a n i n g a n d C h e c k i n g E q u i p m e n t
Follow these procedures to clean the
SLS equipment before you build parts. For
detailed cleaning instructions, refer to the
sections indicated.
Clean the SLS system
1
Clean the IR sensor before every build. You
can access the IR sensor for cleaning using
one of the three possible IR sensor methods.
See Cleaning the IR sensor and blackbody on
page 199.
2
Clean the roller if you see material adhered to
it. (You should not have to clean the roller
after every build unless the roller was run
“cold,” which can cause material to adhere to
it.)
Use a rag and alcohol to clean the roller after
you move it to the center and unload the
RCM.
See Cleaning roller on page 201.
3
Clean the laser window before every build.
The laser window behind is easy to remove
for cleaning. Simply lift up the IPM front
panel, loosen the laser window hold-down
thumbscrews, and pull it straight out.
See Cleaning laser window on page 199.
4
Clean the overflow screens before a build if
necessary. Check the overflow screens in the
overflow chutes on the right and left sides of
the process chamber before a build. Clean
them with a vacuum.
See To clean overflow chutes and screens on
page 200.
5
Clean the process chamber window as
necessary using a clean, dry dust rag.
6
Clean the RCM before every build, before
preheating, and after you remove the RCM
rim. Vacuum the rim and cylinder.
7
Check the N2 and chiller coolant flow on the
SLS system gauge panel before you build.
Verify that three flow gauges read as follows:
• IR WINDOW N2 FLOW (2 to 3) L/min
• LASER WINDOW N2 FLOW (5 to 8) L/min
• COOLANT FLOW (4 to 5) L/min