Aluminium arms.

[sausageroll]

So I started off with carbon. Too damn strong, and with the hex, too expensive - 90 quid in carbon each hex, so I thought id try aluminum.

I got two 2m bits of 20x20mm box section for about 6 quid each (cheap!) Each bit will do one hex, with the arms at 320mm long each.

The whole bit weighs 600g, so I did some maths and they come out to 96g each, seems very heavy, 500g+ just of arms.

I then worked out how much the wood arms weigh (a sensible person would have weighed one but Im lazy and so i calculated it based on the density figure of 560kg / cubic metre) and they came out to 85g each (the wood ones are longer, im cutting two inches off caus at the moment its too big to sit on the table in the dining room and that is very annoying)


So aluminium, not much heavier than wood, but stiffer and cheap and looks nicer tahn wood. Ally also tears nicely so im gonna cut some V shapes into it as stress points to fracture.


This means the entire quad will be 100 percent aluminium, no carbon, no wood. A bit of brass and plastic and some stainless steel in the screws. Man materials, none of that carbon fibre crap! :-P



Pete.

[Gaza07]

I suppose we will need to see new pictures now   

[sausageroll]

Yeah, gonna take the bar to my machine shop friends and cut it up on their big bandsaw. Then will bead blast to give it a nice texture (gonna paint them) and then fit and drill them.

Gonna paint with bbq paint i think, and blast it with the map gas torch to cure it. That sticks pretty firm.

[sausageroll]

Cut my arms up, gave them a light bead blast. Gonna drill holes in a bit.



Also got some more of my superlight bolts from my nut and bolt man. This bag contains 30 M5x30 bolts, 30 nyloc nuts and 60 washers, whole bag is only 80 grams. Not bad eh ;-)

[sausageroll]

Looks nice. Heavy though.