❐
After the glue drop is thoroughly dry, adjust the PROBE SUPPORT RING BASE so that more of its vertical ring is
circular and in position around the edge of the flat ring. Add another drop of glue at one or two points, and let it dry.
Continue to glue and adjust, until the rings are securely joined, and nicely aligned.
❐
Temporarily fold the two long arms (marked with a dot) back away from each other.
❐
Set your PM down on the work surface on its side, supported by the THRUSTER CLUSTERs, with the -X side facing
up. Near the -X mark, notice two black rectangles. Apply glue to these.
❐
Apply glue to tips of the two short arms . Set them down on the glue in the black rectangles, with the ring
about centered over the PM.
❐
When the glue dries, glue the two arms marked - (minus) onto the two black rectangles near the +Z mark on the PM. Let
the glue dry thoroughly.
❐
Bring the two long arms, marked with a dot, into contact with the PM, and glue them there. (You'll have to tuck their
ends under some tank support arms.)
• 4. ASSEMBLE THE HIGH-GAIN ANTENNA (HGA)
❐
Cut out the large circular MAIN REFLECTOR from Parts Sheet 3. Be sure to cut out the large keyhole (triangular
opening with central circle), the two small rectangles, and center slots.
❐
For this step, use a low-moisture glue such as a glue stick. Smear a thin film of glue on the black radial line from the
center to the outer edge. Also smear glue from there to the edge of the triangular opening. Overlap the opposite edge
onto the glue, bringing the circle up into a cone, with the printed circles on the outside. Adjust so the edge aligns with,
and just overlaps the black line.
❐
Once the glue is thoroughly dry, set the cone on your work surface with the point facing down, and crush the point by
pressing the cone down onto the work surface. As you crush it, the central hole will become smaller, and the central
slots will overlap. Continue to crush until there's a flat area about 35 mm or an inch and a half, at the center.
❐
Rest the piece upside down on your work surface, with the crushed center facing up. Apply some glue to the
overlapping slots to hold their shape. Try to adjust the cone's shape so it is even, and sits flat on the table.
❐
Cut the HGA SUPPORT RING from Parts Sheet 3. Apply low-moisture glue to the end marked GLUE, and overlap the
opposite end, forming a ring. Make sure the seam is straight, so the ring sits flat on the table. Adjust its shape to be very
nearly circular.
❐
Rest the HGA upside down on your work surface, with the crushed center facing up. To force it against the table and
hold its shape, stack some coins on the center.
❐
Set the HGA RING down onto the HGA and center it. Apply a bead of white glue all the way around inside the ring, to
make a secure connection between the ring and the HGA main reflector. Don't press down the HGA RING or change its
shape; let the bead of glue fill in any spaces between the circular ring and the slightly irregular HGA shape. Allow it to dry
thoroughly before proceeding.
❐
Notice the location of a thin black radial line, about a centimeter long, on the outside of the HGA. Hold it to the light, and
make a mark on the inside of the HGA dish corresponding to the line on the outside. This will be used later.
❐
Cut out the small circular HGA BASE from Parts Sheet 3. Set it flat onto the HGA RING, and secure it there with glue.
Leave the HGA face down.
Cassini Spacecraft 1/37 Scale Model
EB-1999-04-001-JPL
Page 8
