Diamond Dust CW Kit Assembly Manual page 42

Section 4: Installing the Control Horns and Elevon Linkage – Cont.
Step 3
Locate the two push rods and the two
composite pushrod stiffener tubes. Insert
one of the pushrods into one of the
stiffener tubes, until there is approximately
¼" past the threaded section of the rod left
exposed on one end. Next, take a scrap
piece of balsa sheeting and create some
balsa sawdust with some sand paper or a
file. Take the saw dust and pack the
stiffener tube with enough sawdust to
pack the end.
Once you have the sawdust packed in, wick
in some thin CA and allow it to dry. Do this
for both ends on both pushrods.
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Next, place a drop of thin CA at the tip of the
stiffener tube and wrap about 6 wraps of
Kevlar thread around the tube.
When you are done wrapping the Kevlar,
apply thin CA and allow it to dry.