Homebrew PCBs

On Sat, 12 Mar 2005 16:33:07 -0000, Leon Heller  
<leon.heller@...> wrote:

>
> I just checked Delrin's properties, it's no good in acid or alkaline
> solutions:
> http://www.upchurch.com/TechInfo/matDelrin.asp
> It's a pity, as it's otherwise a very good material.
>

Thanks a lot.
I especially like that:
" It is best to use Delrin with neutral pH aqueous solutions or organic  
solutions for guaranteed best performance."
As if i could choose the liquid to suit their plastic, silly people...

>>
>>
>> I also would have a carbon fiber tube from model building with 8mm dia  
>> for
>> a shaft that could easily take the load, but i don't know how i would  
>> make
>> the bearing if i use that. It is carbon fiber in some resin, probably
>> epoxy, wall thickness is about a mm.

> Carbon fibre uses a similar epoxy resin to fibre-glass.
> Leon

Seems so.
But i have not the slightest idea how i could make bearings for the carbon  
fiber tube...

ST