I may have missed it but which epoxy system are you going to use?
I am using the Rocketpoxy G5000, figured since Madcow is predominantly a fiberglass kit maker, and they are selling it, it must be good stuff.
I may have missed it but which epoxy system are you going to use?
On most of my builds I like to build the entire motor mount with all centering rings and fins glued in place, OUTSIDE the rocket. Then when I cut my fin slots I extend the cut all the way thru the bottom of the airframe. You can leave the rear CR off or on it doesn't seem to matter. I dip a dowel into my mixed epoxy and reach up in the airframe to where the front CR will be and apply there, then slide everything in and apply some epoxy for the rear ring then shove it in all the way and I put a rubber band around the rear ring. By doing it this way (outside the airframe) I was able get exactly equal distance between all my fins. It also seemed easier for me when it came to 6 fin rockets to a line that many fins.
There are lots of ways to skin the cat and every ones different and you just need to come up with a method that works for you. Wait till it comes to those fin slots, we can probably come up with a few suggestions for that too.
KZ1000? Back when I was riding the KZ900 was top dog. Love those inline 4s
Looking good.
How did you reach into the tube to install/epoxy the t-nut for the forward rail button?
First off, nice build!
One bit of advice with a rocket with that amount of fin area and the JLCR. I have a scratch built 4" Standard Missile that I built for my L1/L2 bird. At this month's launch, I put it up on a H180, Eggtimer Quark for apogee deployment, and the JLCR to handle the deployment of the main. Everything went beautifully until the main unfurled, and briefly fouled the fin can because everything came down relatively "flat". Fortunately it popped loose a second or two later and I only have a small ding to the payload bay to show for it, but my next flight I'm going to use a drogue on the payload bay to make sure it is above the fin can.
Nice thing was that despite the wind that day, it all came down about 100' from the pad. Definite win for the JLCR!
With the T nuts, I first made sure I would have enough room between the motor tube and the air frame to sneak them in before I epoxied in the motor tube. I really didnt want to make a flat spot on the front centering ring so it would have as much surface area for epoxy as possible. Since there was plenty of room, I installed the motor tube and all of the fins before even drilling the holes for the T nuts. To get the forward T nut in, I ripped down a 1/8" X 1/4" stick about 20" long, wrapped tape backwards around one end (sticky side out), stuck on the T nut, the globbed on epoxy to the flat surface of the T nut. It was easy to just slide it up into the tube and poke it through the hole, then I installed the rail button and screw on so the T nut didnt move. Using the same stick, I was able to reach up into the tube and spread more epoxy over the nut, as well as applying the fillets on the fins to the motor tube. Make sense? I use the term "globbed" because it certainly aint pretty, but it will be strong
Those curves are nice. What tape did you use?
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