Awesome share -can you elaborate on the perforated bulkhead /shelf/anchor setup ???
Thank You ......
I didn't take any photos before installing the bulkhead/shelf/anchor in my Nike Smoke, however, I have a similar bulkhead in my Estes PSII Leviathan. The Nike Smoke has my "new and improved" version. The new version is different from the photos below. I used 2 layers of 1/8" light plywood bonded with a thin layer of epoxy. I cut a slightly different perforation pattern, and drilled a careful 3/16" hole in the center. I then laminated both sides with lightweight 2 oz fiberglass. Finally, I added a small eyebolt with a washer and a nylock nut on the back, leaving it free to swivel in the hole. Here are some details of the version one unit, which is a nice perforated parachute shelf, single 1/8" plywood layer laminated with 2 oz fiberglass on either side. Very strong, very light. Perfect for the function!
Use light plywood to build a bulkhead and drill/cut/dremmel out a perforation pattern. If you want to mount the shock cord anchor in the bulkhead, be careful not to cut too many holes too close together. Best to copy the pattern in my Nike Smoke shown above. And drill a center hole just large enough for the eyebolt.
Cutting squares of 2oz Fiberglass cloth
Used 20min finishing epoxy to saturate FG cloth onto both sides of bulkhead
Use small pcs of mylar to act as a release on both sides of the wet bulkhead.
I put the layup between 2 pcs of plywood
then put a brick on top to apply pressure. this will force out most of the epoxy resin, but leave just the right amount to get FULL strength out of the fiberglass:
I baked it at 180f for about 20 minutes.. and as that temperature and time, it fully cured and was ready to cut the excess cloth.
trimming cloth and cured excess resin (do this right after taking out of the oven.. as the epoxy is slightly soft still)
A piece of art! time to install that baby.
Here's my version 1 installed in my L1 certification rocket, a Leviathan using the stock elastic, but with epoxy and glass reinforcing the teabag mount. I think the version 2 bulkhead/shelf/shockcord anchor version is FAR better than this shock cord mount.. but both have worked fine.
Hope that helps.