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 Post subject:
PostPosted: Wed Sep 05, 2007 1:56 am 
Retro Guru

Joined: Sun Oct 22, 2006 5:15 am
Posts: 331
Location: TriState
I went for the cheaper specialized Ti stem. Less than $20 US shipped.


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 Post subject:
PostPosted: Wed Sep 05, 2007 3:29 am 
BoTM Winner
BoTM Winner
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Joined: Sun Oct 23, 2005 7:22 pm
Posts: 742
Location: Wooster, Ohio
Kokies,

Anodizing Ti is easier than Al, however, still requires a professional/experienced touch to produce consistent results.

The color spectrum is controlled by the voltage and the time the part is exposed, producing a darker colors with more power. Black, however, is not attainable...the darker colors are more consistently blues and purples.

If you want black, paint or powder is your best bet.

cheers,

rody


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 Post subject:
PostPosted: Wed Sep 05, 2007 9:41 am 
Retro Guru
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Joined: Mon Jan 29, 2007 2:14 pm
Posts: 373
Location: Oxfordshire
blimey, I stand corrected (and cursing my poor memory :roll: )
that's the one new thing I'll learn today so i might as well leave work now!


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 Post subject:
PostPosted: Wed Sep 05, 2007 10:05 am 
Retro Guru
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Joined: Mon Jan 29, 2007 2:14 pm
Posts: 373
Location: Oxfordshire
okay! i've found out how to anodise Ti at home - seems very simple although to achieve different colours you'll bneed a higher voltage battery (I don't advise using mains :lol: )

the colours achieved depend onthe voltage (see picture below) and the following link shows how to do it (achieving a purple colour from 9V

http://www.popsci.com/popsci/how20/3f178ca927d05010vgnvcm1000004eecbccdrcrd.html

intersetingly enough Al anodized coatings have a much lower thermal conductivity and coefficient of linear expansion than aluminum. thus as a result, they will crack if exposed to temperatures above 80°C - something to be aware of in hot countries if you leave your bike in the sun maybe?


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 Post subject:
PostPosted: Fri Sep 07, 2007 5:19 pm 
Retro Guru

Joined: Sun Oct 22, 2006 5:15 am
Posts: 331
Location: TriState
Like a mad scientist,
http://www.mrtitanium.com/anodizer.html


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 Post subject:
PostPosted: Fri Sep 07, 2007 5:23 pm 
Old School Grand Master
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Joined: Tue Jul 05, 2005 3:14 pm
Posts: 13407
Location: Warwick
Im thick at electronics.

Someone set up a rig please! How awesome!


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 Post subject: So I did it
PostPosted: Sat Sep 08, 2007 6:37 pm 
Retro Guru

Joined: Sun Oct 22, 2006 5:15 am
Posts: 331
Location: TriState
not to bad for my first time, with some batteries and cola.


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