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Registered Member #2431
Joined: Tue Oct 13 2009, 09:47PM
Location: Chico, CA. USA
Posts: 5639
Ash Small wrote ...
S type glass will be much easier to achieve good results for a beginner than carbon.
i think ive got the E and S glass lay-up pretty much figured out, ill try CF next. i like the vacuum bag examples ive seen on you tube, but that all looks expensive. and what is that nylon dispersing fabric they use called?
since CF is so much more valuable that FG, id like to use CF where needed, then FG to unify the whole stucture. so i wonder how i could make I or Square beams, or may be i should just buy the CF tubes/rails, and lay-up my own FG?
RC foam.com (for CF)
ive also just got my 0.375 gallon epoxy from UPS, that will last me quite awhile.
Registered Member #2431
Joined: Tue Oct 13 2009, 09:47PM
Location: Chico, CA. USA
Posts: 5639
Ash Small wrote ...
Foam sandwich could be the solution.
Ive been using about 1.4mm thick balsa for this reason, then FG'ed both sides.
Ash Small wrote ...
tubes do give the best stiffness to weight ratio, though.
round, sqaure or I beam?
EDIT: i just finished the FG layup for the main tail fins, i just learned another lesson: fold the unfinished edge under itself, like a hem, so the fray isnt visible. i dont like the plain weave. Ive got the CF all in 2x2 twill. Plus i got this one just right, the amount of epoxy isnt to much or too little, my rolling technique is good! ive got the heater on and IR temp sensor, as its expected to get cold tonight.
Registered Member #2431
Joined: Tue Oct 13 2009, 09:47PM
Location: Chico, CA. USA
Posts: 5639
ok i see how to do large layups now, ive made them too dry, too wet and just right. so ill be making more tonight, my FG and CF fabric arrived friday so ill be using s-glass from my new supplier for the first time tonight.
that water pipe keeps the balsa fins from curving while wet with epoxy.
Painted black, electrics and mechanics present. (The small circuit board is for basic flight control and intelligence, the large STM32-F4 board is for autonmous intelligence and sensor aquisition.)
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Differences between good fiberglass, and good Carbon fiber.
