"Swingman" wrote:

"Jeff" wrote

If humans were meant to face joint, they wouldn't have evolved the
capacity to make thickness planers...

... strictly for the benefit of those unsure of the difference between the
machines/operations.

Two machines/operations with very different purposes: one used to flatten an
edge or face (jointer); the other to mill opposite surfaces parallel
(planer).

A jointer won't necessarily mill opposite faces/edges parallel; and a planer
won't necessarily mill stock flat.

Both machines, used in conjunction, in a methodical manner, and in the
proper order (along with other tools like table saws/hand planes) will allow
a woodworker to mill straight, flat, and dimensioned, project stock from
rough lumber.

And to further confuse things, our English brethren have the right
(IMHO) names for these machines: A planer (Am. "jointer") creates a
surface or edge in a single plane, while a thicknesser (Am. "Planer")
creates a board of uniform thickness (NOT one in a single plane).
--
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