On Fri, 24 Feb 2012 13:52:52 -0500, "Jim Wilkins"
wrote:


"Ned Simmons" wrote in message
.. .
...
The chips coming off my 36" saw at 6000FPM were hot, with a just a
few
dull red sparks. More a case of softening the material in the kerf
and
dragging it out rather than burning it. The saw in the pic on that
page must be running much faster....
Ned Simmons

I was saber-sawing an opening in a stainless steel industrial oven
door and didn't notice immediately when the teeth stripped off and the
blade began cutting by friction. The blade kept cutting at about the
same speed, without throwing hot sparks. When the blade wore down
unevenly I turned it backwards and continued.

jsw


Yup, when everything is working right, you apply pressure to the cut
and there's a slight delay while the kerf heats up. Once there's some
movement, it doesn't take much force to keep the cut going. If too
much force is required it means the blade speed isn't high enough. At
1500FPM my DoAll works, but is less than ideal, on 1/8" SS.

--
Ned Simmons