Enerjet by Aerotech, Astrobee D Build, Part 5, Engine Mount & Upper Tube Bulkhead

Gotta' love instructions when they get things right!

Something I've been harping about for years -

1. Use a Square Knot to tie a shock cord to the screw eye. A "Granny knot" can slip!

2. Do not put cement on a knot! Cement (glues) will weaken the shock cord.

The ejection baffle is glued into the top end of the tube. In the last post the 1/4" slits were cut in the top of the tube.

The second centering ring is glued onto the top of the ejection baffle.

The screw eye is screwed into the hole in the top of the ejection baffle.

The shock cord is tied to the screw eye with a square knot.

Jumping ahead to the Upper Body Prep and Assembly:

The screw eye is turned into the bulkhead plate.

Be sure not to screw in too far. Leave a bit of the threads still visible. If you screw in too far, the screw eye won't hold.

Tie on the second shock cord with a square knot.

The plate is glued onto the coupler with the screw eye facing down.

I applied a wood glue fillet on the inside joint using a Q-tip taped to a dowel.