110 lb. cardstock is good for centering rings.Originally posted by kelltym88
What is a good material to use for cardstock CR's? You know, something simalar to what Estes uses.
Originally posted by flipper
Wanna try building Fliskits Midnight Express
Ok - maybe I will need a package instead of single sheet since ill probably mess it up several times :0)
Originally posted by kelltym88
What is a good material to use for cardstock CR's? You know, something simalar to what Estes uses.
Powderburner,Originally posted by powderburner
I found a picture of a recent build that shows the shear webs I was talking about in my earlier post. (snip)
Quote from Apogee E-Zine:
vertically mounted gussets. These are radially spaced around the ring, and glued directly to the ring to stiffen it up. But they do far more than stiffen the ring. They transfer nearly all the forces from the engine mount tube to the walls of the rocket.
The amount of force that they can take is incredible. I haven't done a stress analysis of the arrangement, but my guess is they add 100 times to the strength of the ring.
Originally posted by stymye
heres a good cheap compass cutter for centering rings, I've used it on .058 mattboard..you can find them in most craft stores
it will cut a wide range of sizes
https://www.artstuff.net/olfa_compass_cutter.htm
Enter your email address to join: