Thread: Who has an oxy cutting torch ?

Originally Posted by Grahame Collins

Gday Mick
A fresh thread is posted.
I have been playing around trying to do a photographic thing, but the cant' get pics right at the flame.I don'tseem to have the right equipment.

I would appreciate if any photographic tecchy type could clearly photograph the hand held torch head showing a macro shot neutral flame flame with the blue cones just above the plate surface.
:

A camera with a point or spot exposure meter that will expose for the exact point on the flame you wish to see is what you need. Most consumer digitals will perform some kind of average exposure across the image and the sensor simply cannot handle the dynamic range of an oxy flame. A digital SLR camera with a macro/telephoto should be able to do this I would have a crack although I am very nervous about exposing mine to such an environment. If no one else does it I will ask the photo techy guys at work - they love this sort of thing - photography, sparks, noise etc.

Cheers

My BIL talks about a trick he does where he heats up the edge of plate and then pushes the oxygen cutting jet and starts cutting then he turns of the acetylene and keeps cutting - he says if you do it smoothly and slowly enough it will keep cutting! Apparently the heat of the burning metal is enough to keep heating the metal ahead of it - kind of like a metal firestorm!

I've done this. Bloody hard to get everything just right but a real good trick to do when showing Yr 11 students Oxy Cutting.

My camera is at work, but I'll bring it home on Tuesday and do it, if no one else can do it sooner.

Well I am not as smart as I thought!

I have tried to take clear pics with my camera, but I can't seem to get it right. I was using a happy snappy camera from work, as my MIL bent the card interface pins on my digi slr. If someone will foot the $425.00 bill for the camera repair, I can take the pics and send them to Graham. Any takers?????

Originally Posted by Wood Butcher

I've done this. Bloody hard to get everything just right but a real good trick to do when showing Yr 11 students Oxy Cutting.

Yep always good for a demo, its like using an oxy lance, now thats an experiance