> H. Karsten wrote:
>> And one more detailed
>>
>> Holger
>>
>>
>> ------------------------------------------------------------------------
>>
> 

> hex object, on the pipe work, is for. If it is a connector it should 
> look something like the one I just threw together, attached below.
> 
> 
> ------------------------------------------------------------------------
> 
There ARE real one piece, solid, connectors just like those. I personaly 
saw a soem on actual working machinery. The thread is normal for one 
half, and inverted for the other. You insert both pipes and just screw it.

It's the kind that you sugest that I have seen the less.



Alain

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