This video shows step-by-step instructions for building the Estes "Der Big Red Max." Part 1: fin preparation, motor mount assembly ( • Estes "Der Big Red Max... ) Part 2: fin attachment, recovery system, finishing
Thanks for the video. One of my tricks... "Paint" the entire nosecone with a Sharpie pen, then sand it off, across the mold line using 220. If you see the ink, you need to keep sanding, after sanding with 220, I then go to finer grades. I also find that wet sanding seems to do the best.
I’m currently building this now and wondered about the motor mount. This rocket doesn’t seem to have a “back” or “top” to the mount that would keep the motor from shooting out the top unlike other kits that have the green ring inside the motor tube. How is it held in? Just by tight tension?
It is intended primarily for use with 29 mm composite motors, which have an aft thrust ring built in (it gets caught between the motor mount opening and the retaining ring). For 29 mm black powder motors, you need to use masking tape.