[TheForge] tig setup

[David E. Smucker]

Rick, All good ideas except watch your pump pressure.  Most small coolant 
pumps don't put out the required psi for the water cooled torches.  Most 
require at least 30 to 40 psi to get the required flow through the small 
passages and small lines in the welding leads.  Most coolant pumps I have 
see will only 5 or 6 psi (10 to 12 feet of head).

Depending on were you might use the welder consider attaching it to you 
household water supply and using the water only once.  Waste water I know, 
and it isn't portable but it is easy to do.  One real danger is forgetting 
to turn on the water -- you can melt the torch real quick without water 
flow.  (Or at least do serious damage.)  I have a small tag that I hang on 
the welder power switch to remind me to turn the water on -- then move the 
tag to the valve when I do.

Dave Smucker
----- Original Message ----- 
From: "RICK KORINEK" <rickkorinek at rcn.com>
To: "Sponsored by ABANA" <theforge at mailman.qth.net>
Sent: Tuesday, September 07, 2004 7:43 AM
Subject: Re: [TheForge] tig setup


>I am also looking to get into TIG welding.  Here is the set-
> up I have been thinking about until I can purchase a bigger
> rig:
>
> I would use my 250 amp stick welder and buying a water-cooled
> torch. For the cooling unit, I thought I could use the
> condensing coil and fan from an old window air conditioner.
> For the pump, I would use a small coolant pump from a band
> saw.  As for shield gas, I would need to buy a regulator and
> use a gas solenoid controlled by a foot switch.
>
> The 2 down-sides I see are: the scratch start and the need to
> crank the amp adjustment handle on top of the welder to
> increase/decrrease the arc current.
>
> I would appreciate any criticism on this approach. Thanks.
>
> -Rick
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