255EXT Cooling fans

[christian]

OK, thanks.

[Rambozo]

AC will create a tone at the frequency the machine is set for. The arc directly vibrates the air like a Tesla coil. Also the arc length has an effect as that causes the voltage to change. A long arc length will be louder. In theory you could modulate your weld frequency with music and the arc would play a tune while you're welding. Not very practical, better to use hearing protection when doing AC TIG , especially over an extended time. You will get a similar effect when using hi frequency pulse settings on DC.

[labmaster02]

The 255EXT manual Highly Recommends wearing ear protection while using high AC frequencies and high pulse.

[christian]

OK, thanks, I'm not hallucinating! Ha, ha, ha...

[christian]

Gee, maybe I was hallucinating, as I ran a few beads on the same piece of aluminum tubing today and it seems quieter somehow. I mean, nothing like DC quiet of course.

[performance]

Change the frequency or the wave form and the sound will be a different pitch and a different decibel level.

It can be more than uncomfortable to listen to at times.

[christian]

Yeah, I think that's what it was. I was trying all the wave forms and speeding up the Hz frequency to 250.

Man, I'm really diggin' this 210EXT. And I think I'm settling on the typical square wave at 120HZ for the moment. I won't be doing too much aluminum, but I dig being able to add another material to projects, beyond stainless steel, that is able to give an unpainted, brushed finish and be lighter too.

I'm likin' that CK SteadyGrip hand amptrol with it also.

Rock On, Everlast staff!

[Rambozo]

[Grizzly1944]

Good stuff Rambozo.

Happy Thanksgiving to all!