View Single Post
  #7  
Old 10-18-2015, 08:06 PM
Mad City Flyers Mad City Flyers is offline
Intermediate Rocketeer
 
Join Date: Jan 2015
Location: Madison
Posts: 70
Default Love hate relationship with 6 minute epoxy

Only 1 soccer game this weekend so we made some more progress on the Stealth. We used the Great Planes 6 minutes epoxy. I think our resin was a little old as it set up in more like 2 minutes, which made for a race to get all the pieces we were attaching set properly.
  • Attached the bulkhead plates together after lots of sanding to make sure they fit smoothly in the payload and booster sections.
  • Built the AV bay sled using plywood, aluminum tubing, and JB Weld epoxy to hold the aluminum to the plywood. Let it set up overnight with a weight on it.
  • Motor mount forward centering ring set and then the motor tube was fixed to the booster. We did not epoxy the aft centering ring so we can set internal fillets.
  • Applied 6 minute epoxy to the fin tabs and set them in place against the motor mount using the fin guide (paper with llines on it) provided with the kit. This worked fin although the rapidly setting epoxy made for a lot of excitement as Nate and I tried to fit the fins through the tab holes and then hold them straight.

Because we chose to convert the rocket to dual deploy we had a bit of a build challenge with the payload section, nose cone and bulkhead. The original design has the nose cone friction fit (or glued) to the payload section and then a standard bulkhead and anchor eyebolt is provided for the recovery cord/parachute.

The AV bay prevents the placement of the bulkhead in the payload section so we fortunately had some extra 4" heavy wall body tube to create a small 4" extension from the nose cone. We then placed the bulkhead in the body with the eyebolt. So our Stealth is now over 6' with the addition of the AV bay and extension of the nose cone.

On to fin fillets-----

Cheers all,

Matt and Nate
Attached Thumbnails
Click image for larger version

Name:  AV Bay 2.jpg
Views: 53
Size:  49.1 KB  Click image for larger version

Name:  Motor Mount.jpg
Views: 49
Size:  83.5 KB  Click image for larger version

Name:  Nose Cone and Bulkhead.jpg
Views: 341
Size:  47.1 KB  Click image for larger version

Name:  Fin Can Exterior.jpg
Views: 54
Size:  120.0 KB  Click image for larger version

Name:  Fin Can Interior.jpg
Views: 58
Size:  63.1 KB  
Reply With Quote