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graydog View Drop Down
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Direct Link To This Post Posted: 24 April 2011 at 8:29am
My main supplier was in Cardiff originally call C G Rees back have change name now so google. Usually very goi. On price ( in my experience)

I find much like others it is better to drop in and get off cuts in terms of price. But take care as some times you buy more then you need and it may have been cheaper to just order the cut size.

I have no good supplier in north Wales yet.
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SteveArmstrong View Drop Down
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Direct Link To This Post Posted: 26 April 2011 at 2:58pm
Thanks Crossie. I came across aluminium warehouse, but pfa metals I hadn't, and is more what I had in mind. It is a bit more expensive so I will have to juggle cost / benefit on performance here, given that it's the first build.
I think its time to get some quotes and then check some local firms for off cuts, then at least, I'll have a bench mark price to work from. Thanks graydog.
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Shiner View Drop Down
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Direct Link To This Post Posted: 26 April 2011 at 9:36pm
Post theft!!
 
Shoulda called it ''new to this alu sheet''
 
LOL Wink
Stranger things have happened!
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martinbguk View Drop Down
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Direct Link To This Post Posted: 27 April 2011 at 11:00am
5251 (NS4) is also good for doing riveted tub work.

HRSO2 No 59

www.mbg-recumbent-racing.blogspot.com
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SteveArmstrong View Drop Down
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Direct Link To This Post Posted: 28 April 2011 at 10:47am
Thanks Martin, I'll look into that.

Haha, you can always Steel it back again, Shiner.
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Shiner View Drop Down
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Direct Link To This Post Posted: 01 May 2011 at 6:05pm
Hay, been a while and had the bike out and about for testing.. But now I think its time to make the racer I wanted!
 
If anyone wants my bike for what ever reason Ill gladly sell it for a reasonable price! Just need a 3 speed shifter fitting for about £16..
 
Open to offers, now watch this space for my next project!
 
Thanks, Paul
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GeoffBird View Drop Down
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Direct Link To This Post Posted: 27 May 2011 at 8:09pm
martinbguk wrote: "5251 (NS4) is also good for doing riveted tub work."

I'm told you should cover it in soap where you intend to bend it and heat it until the soap turns black, which anneals it, making it easier to bend. Bending it will work-harden it. Have I got this right Martin??

I think you should buy it in the 'half-hard' condition for folded sheet structures.


Edited by GeoffBird - 27 May 2011 at 8:11pm
Right Time - Right Place - Wrong Speed
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martinbguk View Drop Down
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Direct Link To This Post Posted: 27 May 2011 at 8:22pm
Hi Geoff, sorry I missed you on FB.
Soapy black bit is correct.
1/2 hard is also the best condition for fabricated bits, but be careful as it can still crack (see black soapy bit above). Half hard is also known as H4 condition (or H14, H24, H34 just to be difficult)
5251 is also know as N4, for sheet material NS4.
You also can't tell from this that I own a BIG book on aluminium which I bought about 20 years ago. Wink 
HRSO2 No 59

www.mbg-recumbent-racing.blogspot.com
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GeoffBird View Drop Down
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Direct Link To This Post Posted: 27 May 2011 at 8:25pm
Thanks Martin - tricky stuff, Aluminium...
Right Time - Right Place - Wrong Speed
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