The motor mount was fairly straightforward. Locktite was used to secure the nozzle tip. 32 S&W cast lead bullet fit the space and weight requirement perfectly. 44 mag solid lead bullets from my Cowboy action loads, and one. My reloading bench is beside the rocket table in the basement so two. Second, I could add bullets, as required, inside the nozzle for nose weight. First, I could take it off, drill two holes beneath it and have an anchor point for the Kevlar shock cord. I chose a caulk tube with a screw on/off nozzle for two reasons. The coupler was epoxied into the scuffed and scored HDPE nosecone. I made a coupler for the nosecone shoulder by slicing a section out of a slightly too-large coupler, and using that section to glue back inside and hold it together. I cleaned out the fresh, wet adhesive from the inside of the tube with paper towels. My dad calls Gorilla Glue Gorilla Snot, so that's where the name came from. Yes, I sacrificed a $7 tube of Gorilla Glue for this Snot Rocket. I sliced the nosecone off of the adhesive-filled tube, then used a broomstick to push out the adhesive from the bottom. The HDPE tube was scuffed and scored, as well.
I also put one of the rail buttons through the shoulder of the fin can and the caulk tube to hold them together - along with epoxy, of course. Not many adhesives will adhere to it so I chose rail buttons instead of gluing on a launch lug. The fins and walls of the can are 2mm thick.
We used PLA and so far, it has one flight under it's belt with no problems. That was last year before I had my own printer, so a friend printed it for me. I drew up the fin can in Fusion 360 (my first fin can). Gorilla glue won that source selection hands-down. I headed to Lowe's looking for a tube that had a screw on/off nozzle, and a cool-looking easily-recognizable label/brand. From that moment, I knew I had to see one fly. The idea was simple - I was changing a caulk tube in my caulk gun one day and thought the business end looked like a ram-jet. My Gorilla Glue "Snot Rocket" recently made its first flight!
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