3D Systems sPro, User Manual

Page: 109 / 280

SLS p r o c e s s 1 0 9 R C M & O T S
u s e r ’ s g u i d e R C M d e s c r i p t i o n
RCM part piston and part cylinder
When the RCM is loaded in the SLS system, the
part cylinder and part piston form the SLS system
part bed. The top of the RCM cylinder seals
against the bottom of the square hole in the
middle of the process chamber floor.
The part piston moves up and down in the RCM
part cylinder. When a build starts, the part piston
is at the top of the cylinder, or “Start” position. As
a build progresses The piston descends in small
increments after the laser scans the part bed
before each new layer of powder is added. The
part piston in the RCM part cylinder moves up
and With the part cylinder. The model RCM 140 -
140 liter cylinder with part piston all the way
down.
L
Be sure to clean the RCM seal after every build.
See
Cleaning the RCM on page 128 and SLS
System Service & Maintenance on page 196
When RCM is loaded, the RCM part cylinder rim seals
against the underside of process chamber floor
Process chamber floor
RCM seal
RCM part cylinder rim