[PSUBS-MAILIST] Welders

Sat Jul 29 14:28:51 EDT 2023

 I have an Longevity 250 stick welder that has been pretty reliable and works on single phase 240v.  I did have a situation where it would power up but not weld after just sitting around for awhile.  I took the cover off and found that the standoffs for the circuit board had crumbled…I replaced then and it started welding perfectly again.  
I am looking at the Everlast 255EXT for a tig welder which is also a 240v single phase unit.   I will also say that I find acetylene gas welding indispensable in some circumstances.  
Jon

    On Saturday, July 29, 2023 at 02:10:00 PM EDT, Sean T. Stevenson via Personal_Submersibles <personal_submersibles at psubs.org> wrote:  

 Meaning I either need three phase service (cost prohibitive and often unavailable in residential areas anyway), or need an engine / generator driven machine? The multimatic claims to handle up to 3/8" material at its limited duty cycle. For the amount of time I would ever need to weld thicker material, I figure I could farm out those jobs. I wouldn't be comfortable doing my own pressure boundary welds in any case. I'm a designer, not a craftsman, and that seems like an appropriate time to engage a professional. I was just thinking structures and hobby projects (trailer frames) etc.

If the multiprocess machine won't perform to the published specs though, that's another matter entirely.

Sean

-------- Original Message --------
On Jul. 29, 2023, 11:51, via Personal_Submersibles < personal_submersibles at psubs.org> wrote:

Sean,

Most professionals do not use multiprocess machines. However, Stick welding option is included in most TIG machines.

I consider 220 Volt MIG/MAG machines as a bit too light for submersible work. Should have at least 250 Amps and can handle 1 mm wire to weld hull material.

BR, Emile

Van: Personal_Submersibles <personal_submersibles-bounces at psubs.org> Namens Sean T. Stevenson via Personal_Submersibles
Verzonden: zaterdag 29 juli 2023 19:10
Aan: Personal Submersibles General Discussion <personal_submersibles at psubs.org>
Onderwerp: [PSUBS-MAILIST] Welders

Curious to know what welding machines our members are using (those of you doing your own welds), and what your impressions are?

I am considering purchasing a Miller Multimatic 220 AC/DC machine, which will do GMAW (MIG), GTAW (TIG), and SMAW (stick). The unit is well reviewed, but pricy. Does anyone here have experience with these sorts of multiprocess machines?

Sean

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