'Gas saver' for 9 and 29 series

[BillC]

What luck! Welding some aluminum, had one of the 'gas saver' set-ups on the 20 series torch with the nice Pyrex see through cup. It's a good set-up but I didn't cinch down on the collet to hold the tungsten so it just slipped out onto the floor - which I did not notice! This el-cheap-o self darkening helmet lens was dark when it shouldn't have been so when there was no visible arc I just put the hammer down - peddle to the metal. The high frequency arc found the little screens in the gas saver and made them into little blobs of stainless steel where the screens used to be. The collet is a wedge tip instead of a split collet so takes considerably more pressure to hold the tungsten. Ho-hum...

Point is - when three things are screwing up at the same time - something is going to be destroyed...

Thanks,
BillC

[zoama]

What luck! Welding some aluminum, had one of the 'gas saver' set-ups on the 20 series torch with the nice Pyrex see through cup. It's a good set-up but I didn't cinch down on the collet to hold the tungsten so it just slipped out onto the floor - which I did not notice! This el-cheap-o self darkening helmet lens was dark when it shouldn't have been so when there was no visible arc I just put the hammer down - peddle to the metal. The high frequency arc found the little screens in the gas saver and made them into little blobs of stainless steel where the screens used to be. The collet is a wedge tip instead of a split collet so takes considerably more pressure to hold the tungsten. Ho-hum...

Point is - when three things are screwing up at the same time - something is going to be destroyed...

Thanks,
BillC

I prefer the wedge collets over standard. I've never had a slippage problem.

[performance]

I received some information that the "pyrex" lenses are just cut up test tube material. hmmmm.......

[rick9345]

Quartz, works fine,real fun to cut to length need good diamond impregnated wheel,not glued to steel back stuff. The dust

[BillC]

I received some information that the "pyrex" lenses are just cut up test tube material. hmmmm.......

Nope, test tubes are not a third the thickness of these Pyrex lenses.