"Andy H" wrote in message
...
Swingman wrote:

Ive always heard to on plane one side of a board and wait a couple days
for it to acclimate before doing the other side.

Exact opposite, IME.


The opposite actually makes more sense to me too. If you are only
revealing the "fresh" cells on one face then they could expand more than
the non planed face making an expensive potato chip.

That sound right?

Actually, and IME, the newly planed cells eventually contract due to
drying/loss of moisture, causing that side of the board to become concave.

As far as the "plane one side only, let it rest before doing the other"
theory:

_Most_ of the time a planer is used in conjunction with a jointer, one
surface is "jointed" flat, and then the opposite surface is planed parallel
to the jointed surface and for thickness ...

.... therefore, the operations usually following one another, that sorta
blows the "let it rest between planing sides" theory completely out of the
water.

Just my tuppence ... I do what I do because it works for me in my shop
environment, and in my climate. YMMV

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Last update: 11/30/07
KarlC@ (the obvious)