On Tue, 6 Aug 2002, Nolan Penney wrote:
> With my old fashioned unit I set the tension correctly on the unit to
> where it stays up, but with a nod of my head falls into place. This
> allows me to see what I'm doing very well, and without moving my hands
> drop my shield in place.
I used an auto helmet briefly at work and I'm not sure I liked it. but I
found that using the above method never quite worked right either. either
I had to nod hard enough that my hands moved or the helmet always fell on
its own.
> By using an old fashioned unit I don't get flashed. The auto-darkening
> units have come a long way in their rapid response, but there is still a
> time lag. That is something I don't like. It especially matters if I'm
> doing many restarts, as I would get a flash from every restart.
this was my problem too. my solution was to close my eyes for a long
blink, strike an arc, then open. yes, I couldn't see, but I couldn't see
when slamming my head to my chest to drop the helmet either. I was always
paranoid though that I'd open my eyes and the shade wouldn't have
darkened.
> of auto darkening shields are much lighter then their ancestors, they
> still have a good bit of weight. This matters to me when I'm spending
> hours on my back holding my head up, or hanging head down.
I'm having just the opposite problem. the first helmet I ever used was
probably 25 years old and made of thick fiber-reinforced plastic. pretty
stout and hard to flex or bend. I can't find another like it anywhere. I
don't like that new helmets flex out if you breathe on them too hard.
either I'll come off the money for a good auto-dark or do something I
read on the list--use halogen lights to get the work area bright enough
that you can see what you're doing on a regular shade before you strike
the arc.
scott
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