Printable View
Oxy-fuel cutting a sprocket.
<video controls autoplay loop> <source src="https://s3-us-west-1.amazonaws.com/hmt-forum/oxyfuel_cutting_sprocket.mp4" type="video/mp4"> Your browser does not support the video tag. </video>
Previously:
https://www.homemadetools.net/forum/...048#post191332
https://www.homemadetools.net/forum/...477#post162263
https://www.homemadetools.net/forum/...735#post128966
Don't need no stinking plasma, or LASER's with Frikkin sharks :)
Plasma is about the worst thing to use when cutting thick metal and needing a perfectly perpendicular cutQuote:
Originally Posted by mwmkravchenko
Yep. Since the plasma stream is spinning it tends to run to one side. This leaves a pronounced bevel on one side of the cut.
Yup. Even waterjet cuts a wedge. Some of the higher end machines can tilt the head so that the finished side of the cut is perpendicular to the material (at the expense of the other side).Quote:
Originally Posted by Frank S
I made a CNC flame cutter years ago. It was just a 2 axis machine though. It didn't have any of the fancy stuff like the ability to tilt the torch.
Actually I should have said a near perfectly perpendicular cur as even the kerf of an oxy fuel flame will show some variation in very thick metals such as in making cuts through metals over 6 or 8 inches thick. But with a properly cleaned tip and the correct mixture and pressure settings the variation is negligible
Unbelievable what a "clean" tip does, I worked with a welder who was a fanatic about having a clean tip. When he cut 1/2" plate you could cut yourself on the edge if you were not careful.
Ralph