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 Post subject: Re: T-handle now available! The best handle for Airstyle
PostPosted: Sun Aug 03, 2014 1:18 pm 
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Hmm - school sure has changed...

I'll be original and call it The 'n' handle for my Noob boardoffs :)

The Rail Grip can be bought from Clark Rubber in Oz... and cut and sanded to suit etc


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 Post subject: Re: T-handle now available! The best handle for Airstyle
PostPosted: Sun Aug 03, 2014 2:00 pm 
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old school is cool


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 Post subject: Re: T-handle now available! The best handle for Airstyle
PostPosted: Sun Aug 03, 2014 10:26 pm 
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davesails7 wrote:
plummet wrote:
Aluminium to stainless in a salt water environment is a very very very bad idea.


Aluminum and stainless steel isn't too bad. They both form inert layers on the surface (which is why they don't corrode in general). So even though they have galvanic potential, they mostly insulate themselves.


I'm afraid to say Dave that you not entirely correct. Do aluminium and stainless steel have passive oxide layers? Yes they do. Does that mean they will not corrode when placed together? Not exactly.

Corrosion is an electrochemical process. It relies on voltage potential difference and a suitable electrolite solution.

For harsh enviroments (salt water) you want less than .15v difference in potential. The difference between aluminium and stainless is a minimum of .25v difference.

So the potential for corrosion is high. The next thing that needs to be considered is temperature. The higher the temperature the faster the corrosion. The temp in the sea isn't too bad. But then imagine placing a wet salty board in a hot car. Temperatures can be 40+ Deg C. That will dramatically increase the corrosion potential.

The next thing that increases corrosion speed is a crevice. The handle/bolt joint is a perfect crevice. The salt water gets in. Then the water evaporates leaving the salts. The next session brings more salt water which increases the salt concentration. The increased salt concentration increases the corrosion rate............ At temperature and you have a recipe for high corrosion.

Now in normal enviroments you can get away with .25v potential difference and in controlled conditions up to .5v difference.....

So to stop or slow corrosion insulate as masisback states. Also washing down with fresh water after every session and remove the salts.


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 Post subject: Re: T-handle now available! The best handle for Airstyle
PostPosted: Mon Aug 04, 2014 9:12 am 
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Is this the result of that million page thread that went on for ages? How did you manage to discuss a bent piece of ally wrapped in neoprene for like 50+ pages? Probably more like debating how you're gonna get away with charging 50euros for it :lol:


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 Post subject: Re: T-handle now available! The best handle for Airstyle
PostPosted: Mon Aug 04, 2014 11:18 am 
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Sure, we gonna get really rich with that!

We are not doing that for money, and the one producing it needs his work to be paid.
I am sure you work for free...

No one needs to buy it, you can do it yourself.
Those who want this piece of quality and happy to spend some money can order it.

Simple as that !


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 Post subject: Re: T-handle now available! The best handle for Airstyle
PostPosted: Mon Aug 18, 2014 6:08 pm 
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Toby wrote:
No one needs to buy it, you can do it yourself.


Here is my 3D printed handle. How long will it last, I don't know.

Attachment:
20140818_193719.jpg
20140818_193719.jpg [ 2.85 MIB | Viewed 721 times ]


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 Post subject: Re: T-handle now available! The best handle for Airstyle
PostPosted: Mon Aug 18, 2014 6:42 pm 
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Plummet, true there is a potential and the faying surface between the handle and the bolt can make things worse.

The other big up side though is that there is a lot more aluminum than stainless. The aluminum gives up material to the stainless, so a very small percentage of the aluminum will be lost to corrosion. A small amount of aluminum contacting a large amount of steel is a much worse problem.

In the marine industry, aluminum boats have lots of stainless bolts in the aluminum structure which are not isolated and it isnt a problem.


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 Post subject: Re: T-handle now available! The best handle for Airstyle
PostPosted: Mon Aug 18, 2014 6:53 pm 
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I had former alloy handles breaking on me, so now it is thicker alloy which should never break.
I wonder about the plastic ones how long they will last.

I guess we will see ;-)


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 Post subject: Re: T-handle now available! The best handle for Airstyle
PostPosted: Tue Aug 19, 2014 3:45 pm 
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joriws wrote:
Toby wrote:
No one needs to buy it, you can do it yourself.


Here is my 3D printed handle. How long will it last, I don't know.

Attachment:
20140818_193719.jpg


Mind throwing that model up on Thingiverse if you haven't already?


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 Post subject: Re: T-handle now available! The best handle for Airstyle
PostPosted: Wed Sep 03, 2014 11:32 am 
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Update:

To avoid corrosion the T-Handle is coated with a 2-component clear varnish, which is used as well
for alloy car rims.
Additionally black PVC countersank washers are enclosed.

Please check the depth of your inserts, the delivered screws will fit 11mm deep inserts as industry standard. In case your inserts are less than 11mm, the delivered screws may be too long and you will have to shorten them or use different M6 screws!

Preorders will ship next week.


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