[TheForge] Oxy/Propane reprise

[williamsiron at comcast.net]

Since Frosty is back on-line, we could ask him about oxy/propane rigs. He has one sold out of Idaho, All State Distributers, I think. 



Mark Williams 

Snow Hill, Maryland 
----- Original Message ----- 
From: "Paul N" <crosspein at sbcglobal.net> 
To: "Blacksmithing List Sponsored by ABANA" <theforge at mailman.qth.net> 
Sent: Sunday, November 15, 2009 5:44:05 PM GMT -05:00 US/Canada Eastern 
Subject: Re: [TheForge] Oxy/Propane reprise 

I uploaded a few photos to www.photoaccess.com (see bottom of message 
for details). 

I believe I've labelled them accurately. The "oxidizing Flame" was 
getting noisy, so I'm pretty sure that ones right. 

The one labelled neutral, may have been a bit toward the reducing side, 
as the cones are a bit fuzzy. (No cutting jet yet) 

The last one was with the cutting jet blowing. I cut back the mixture 
until the preheat cones were less fuzzy. I noticed that the preheat was 
uneven, so my tip probably needs some cleaning. 

The torch cut nicely at this setting. 

Observations: 
While running just preheat gas, things were fine. But on some cycles 
(not always), if I preheat, then cut, then backed off the cutting jet, 
I'd get some popping in the tip, even with the tip well away from the 
work. Opening the fuel valve a little more always remedied it. 

All connections were tight. But if you notice, I'm left handed, and I 
still hit that gas valve with the heel of my hand on occasion. I need to 
turn that handle around to get the valves away from my hand. 

Again, thanks for help. Feel free to educate me further. Hopefully the 
photos will help someone else. 

**Paul 



Marc Godbout wrote: 
> Thanks, Paul. I look forward to seeing the very first photographs ever 
> taken of an oxy-propane flame. You'll be breaking new ground, never 
> before attempted. 
> 
> Seriously, though, also try taking pictures without the filter. 
> Cameras have a pretty good ability to filter by themselves. With a 
> dark background, it may adjust around just the flame. Auto-focus might 
> still be a problem, but maybe a metal background near the flame would 
> work. 
> 
> --Marc 

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