DIYbanter - View Single Post - Burke Millrite Spindle Bearings Access Plug

In article ,
wrote:

On Tue, 03 Aug 2004 02:41:01 GMT, (Dennis van
Dam) wrote:

I was first told of the wood resin abrasion phenomena by a tool and die
maker who really knew his stuff. (Got his mechanical engineering degree
*after* a couple of decades working as a tool and die maker.) That fact
not withstanding, it does occur to me that there might be a wee bit of
"machinist arrogance" (uttered with the utmost of respect for the man and
the trade) embodied in the information, in that the purist machinist/metal
worker might be inclined to frown on using a mill to process wood, metal
working being more "technical", woodworking being more "craft", hence
processing wood on a machine tool is "an abuse" of the machine tool.

I cant say Ive ever seen a wood working machine with worn parts that
could be attributed to such a phenomenon.

Gunner,

Good point, however I would contribute that wood working machinery
wouldn't be expected to hold the same tolerance that metal working
machinery holds, my point being that in so far as there is any credance to
wood resin wearing on the machinery, the effects would be less apparent on
wood working machinery than on metal working machinery.

On the other hand wood working machinery would realize a much greater
exposure to the (alleged) phenomena than metal working machinery, which
tends to bear out your implied conclusion (that wood resin abrasion is not
a problem) indicated in your observation that you've never noticed any
acute wear on wood working machinery that could be attributed to wood
resin abrasion.

This would bring me back to my hunch that some part/all of of the
phenomena is/may be attributable to "metal working tools being appropriate
to metal processing only" per metal working purists.

(BUT I'm still going to keep ALL chips as clear of the the machine as
possible) (-8

Dennis van Dam

Ive cut a fair amount of wood on metalworking machines..and the only
problem Ive noted is the tendency for the sawdust to turn into
cardboard in the damnedest places.

That would tend to support my observation that wood chips/dust is more
pervasive/intrusive on the machinery than metal chips.

(Also that it's more compressive) (-8

Gunner

"There is no difference between communism and socialism, except
in the means of achieving the same ultimate end: communism
proposes to enslave men by force, socialism - by vote. It is
merely the difference between murder and suicide."
- Ayn Rand, from "Foreign Policy Drains U.S. of Main
Weapons"