❐
Without disturbing their alignment, mark with a pencil on the UPPER EQUIPMENT MODULE in a circle where the two
pieces join.
❐
Separate the pieces again. Cut off the bottom of the UPPER EQUIPMENT MODULE below your pencilled circle,
leaving a small amount, a couple of millimeters or an eighth of an inch, remaining below the circle.
❐
Set the BIPROPELLANT TANKS piece down inside the PROPULSION MODULE (PM), securing with a blob of glue at
the bottom (don't put any glue near the top of the PM yet). The upper portion of the TANKS piece will protrude above
the PM.
❐
Cut out one of the RCS THRUSTER CLUSTERS from Parts Sheet 2. RCS stands for reaction control subsystem. Fold
the section marked GLUE back 90° toward the non-printed side, and apply glue.
❐
On the PM, find a long rectangle marked R. To the right of it, there is also a small rectangle marked R. Glue the
THRUSTER CLUSTER’s GLUE-marked section to the long rectangle, aligning the bottom of the GLUE section, with
the heavy black line at the base of the long rectangle. Arm C faces downward. Align vertically, and let the glue dry.
❐
Find the short heavy black line marked A, and one near it marked C on the THRUSTER CLUSTER. Crease at these
lines, folding back toward the non-printed side.
❐
Apply glue to the end of the THRUSTER CLUSTER arm marked R. Bring it in contact with the small rectangle marked R
on the PM. Secure there with glue.
❐
Cut out one more RCS THRUSTER CLUSTER from Parts Sheet 2 and repeat the above steps, attaching it to the PM.
❐
Cut out another RCS THRUSTER CLUSTER from Parts Sheet 2. This time, make the folds toward the printed side, and
install it on the PM at the unlabelled rectangles similar to the R-marked rectangles.
❐
Repeat the above steps with the last remaining RCS THRUSTER CLUSTER.
❐
On each of the four THRUSTER CLUSTERS, fold tab B downward to be approximately horizontal. Each of these tabs
represents six small rocket thrusters which are used for attitude management and small course corrections.
❐
Cut out the HELIUM TANK HALVES from Parts Sheet 2. Fit them together at right angles, slot into slot, and secure with
glue. These intersecting pieces represent a domed cylindrical tank.
❐
Fold the two arms at the top end of the HELIUM TANK in the same direction the single arm is pointing on the bottom
end. Fold over the two G-marked tabs, and apply glue to their outer sides.
❐
Press the glued tabs onto the squares marked H on at the top of the PM. The HELIUM TANK's bottom strut should
contact another square marked H toward the bottom. Glue it there, aligning the HELIUM TANK vertically with the PM.
❐
Cut out the MONOPROPELLANT TANK HALVES from Parts Sheet 2, assemble and mount on the PM in the same
manner as the HELIUM TANK, using the squares marked M. (If the top support arms don't quite reach the M-squares,
Cassini Spacecraft 1/37 Scale Model
EB-1999-04-001-JPL
Page 6
