- Sep 29, 2011
- Reaction score
- Howard, NY
My minimal experience with contest-grade balsa leads me to say that I wouldn't touch it for rockets. Way too flexible. The effort it would take to reinforce it properly would defeat the purpose.Has to be contest grade balsa (much more flexible) and must be bent across its width.
Really impressive results!Finished the "cellulose-PVA composite" fins today.
I used my jigsaw to trim them and then a belt sander to smooth the cut edges. Pretty impressive how strong these are.
Then did a mock up just to get a visual. Pretty pleased with the results thus far.
Kind of mind boggling the possibilities for making pieces - parts using this process.
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1/16" might be pushing it. 3/32" or 1/8" isn't too bad. That said, I used 1/16" contest balsa bent into a ring for my Ring Hawk glider (basically a dual ring- finned rocket that glides when the rings are separated). I did end up coating the rings with dope to strengthen them however.My minimal experience with contest-grade balsa leads me to say that I wouldn't touch it for rockets. Way too flexible. The effort it would take to reinforce it properly would defeat the purpose.
Of course, building flying airplane models is a different thing, and I can see where it would be an excellent material. But for rockets fins.... well I'd need to be convinced.
Thanks Eric.Impressive. Love your precision. How did you get all the spheres the same size? By eye?
I'll take the crepe paper and cut it down to 1/2" width. Then the streamer wraps around the MM until it fit's snugly into the C-80 body and a dime is then taped to the outside end of the streamer.Interesting. That is connected to the motor mount tube, or the shock cord? Is that single use? Sorry if I missed this discussion before, if so never mind.