frame build

[bugwalsh]

Hi all,
Now i have build my first quad out of balsa wood and am slowly getting the hand of crashing it sorry i mean flying it. i am now looking at building a better frame.

Im building a H frame 450mm x 450mm and have two options
1) aluminium tube ( 15x15x1.5 mm walls)
2) carbon fibre 12mm round 1.5mm wall

I need help on which one to go for.

 

[holtneil]

Hi use carbon fibre round this will let you angle the motors if you want for more speed in level flight

 

[GJH105775]

Hi all,
Now i have build my first quad out of balsa wood and am slowly getting the hand of crashing it sorry i mean flying it. i am now looking at building a better frame.

Im building a H frame 450mm x 450mm and have two options
1) aluminium tube ( 15x15x1.5 mm walls)
2) carbon fibre 12mm round 1.5mm wall

I need help on which one to go for.

If budget allows then CF (harder to work with so you need to pay a little more for brackets and the CF tube), if not then Aluminium is great to work with, but heavier.

 

[bugwalsh]

Which is more crash resistant ?

 

[holtneil]

Aluminium will bend but you cant bend it back it will snap, Carbon will snap in a hard crash, but no 2 crashes are the same ,I had a 700 class drop 10 feet into the ground on 1 arm the ground was soft so it just stick the prop into the ground did snap the arm or carbon prop , had the same thing on 525 frame an aluminium armed frame it snapped 2 arms and 3 motor mounts but to be fair it was a little higher and the ground was hard with short grass

 

[GJH105775]

Aluminium will bend but you cant bend it back it will snap, Carbon will snap in a hard crash, but no 2 crashes are the same ,I had a 700 class drop 10 feet into the ground on 1 arm the ground was soft so it just stick the prop into the ground did snap the arm or carbon prop , had the same thing on 525 frame an aluminium armed frame it snapped 2 arms and 3 motor mounts but to be fair it was a little higher and the ground was hard with short grass

I have nearly totaled my aluminium frame a few times, I have found the channel I use to be really good about keeping it's structural integrity after being bent pretty good, but aluminium tube would break on trying to bend it back.