carbon fiber - Northern Colorado Rocketry

This topic has 70 replies, 9 voices, and was last updated 17 years, 1 month ago by James Russell.

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December 9, 2007 at 8:15 pm #45901
Conway Stevens
Participant
How much do you need? What size of tube? and how many? I have some here. I normally buy it in quantity. Let me know if I can be of help…

LOL my daughter just got her JrL1 cert at Oktoberfest on an I motor flight. She has been building and flying rockets for about 8 years now. I cant imagine where she got the idea to do this stuff from 🙄
December 9, 2007 at 8:19 pm #45902
SCOTT EVANS
Ken said theres a place in Ft. Collins whats it called? Im gona be up there tomarrow any whey, and Ill just do something else tonight!
December 9, 2007 at 8:20 pm #45903
SCOTT EVANS
way not whey, need spell check!
December 9, 2007 at 8:24 pm #45904
Conway Stevens
Participant
Ft Collins Plastics. I buy from them alot. Im also in the Ft Collins Area as well.
December 10, 2007 at 10:30 pm #45905
SCOTT EVANS
Ok got my mylar! Its thick! Ridged!
I can see where this might help keep wrinkles out.
Although I dont think it will allow as much resin to squeeze out
as the poris teflon.

scotte
December 11, 2007 at 3:28 am #45906
SCOTT EVANS
Tried it tonight, We will see tomarrow.
Definently could have been set up a little better (got a little frustrated ok maybe a little paniced too) but I finally got the mylar closed, wrapped with fabric, and taped starting at one end to the other. We will see.
Sleaves would definantly be easier. 🙄

scotte
December 11, 2007 at 4:03 pm #45907
SCOTT EVANS
Well
I had it in front of the heater all night, running hot air though the tube!
I might have had a little more catalyst in this time too, but it was pretty cured. Not bad, maybe Conways Daughter wont have to glass all my Rockets for me. I still have a few air bubles under the fiberglass but I think I was maybe to sparing with the resin this time.
BUT I HAVE ONE BIG QUESTION. Are we really sweezing out that much exess resin and is it really that much lighter with this methoud, as oppoased to just a standard layup? OR is it just so pretty when it comes out that it makes us feel good? (you know I have to ruff it up for the second layer) Has any one actually done 3 or 4 methouds by hand side by side and wieghed the tubes afterwords ?? Besides the wrinkles that poris teflon really sqweezed it out.

Scotte
December 11, 2007 at 4:38 pm #45908
Ken Plattner
Participant
Scott, I weighed a 4″ by 4′ phenolic tube before and after (using CF sleeve). Before the tube weighed 19 ounces, after it weighed 32 ounces.

Ken.
December 11, 2007 at 6:55 pm #45909
Warren B. Musselman
Moderator
My 4″ carbon bird was pretty close to the ideal ratio of fabric to resin and came out about double the weight of the phenolic tube. There were 4 wraps of 5.6 oz carbon and a single layer of 3 oz glass as a sanding veil on top.

Warren
December 11, 2007 at 7:44 pm #45910
SCOTT EVANS
My 4″ carbon bird was pretty close to the ideal ratio of fabric to resin and came out about double the weight of the phenolic tube. There were 4 wraps of 5.6 oz carbon and a single layer of 3 oz glass as a sanding veil on top.

Warren

5 layers and only double the wieght, pretty nice.
Before I do anything with the cf sleves I ordered, Im going to get the hang of it with the fg.
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