"Mike Marlow" wrote in news:WtdFd.140$aa6.59
@fe61.usenetserver.com:


"Never Enough Money" wrote in message
oups.com...
Charlie, You are correct about wood: that 0.002 is way past where you
need to be. However, for machining steel parts, 0.0002" is really nice.

Also, seems to me that if your stratig ege reference has an error of up
x, then your jointer can be up to square root of (2 x squared), root
mean squared (RMS). If you join two pieces that also gets RMS'ed so the
error is potentially twice the eror in the original reference straigth
edge.

Still not very much, but just for completeness, we ought to make note
of this effect -- unless this analysis is wrong -- and it sure could
be.....


It sure is an entertaining analysis. It has all the right components -
numbers, multipliers, square roots, abbreviations and a way to put all of
those together. Hell, it doesn't have to be accurate, it sure looks
impressive as a formula.

All it needs is an addendum calculating for 220/240/440V, wire gauge, and
whether we need three or four leads...

Patriarch,
who IS kidding...