Processing
the Wood (Milling and Drying)
Before you begin any wood processing, make sure you and the WARP
crew are working safely, and that a Safety Person has been assigned.
You should also know that much of the wood you will be rescuing
is "Urban" wood, that mean trees that have often been
planted by people in and around where they live. One of the facts
of urban wood and trees is there are sometimes bits of metal embedded
in the tree. These can be anything from nails that were driven into
the tree decades ago, to bullets that were shot at a tree, wire
that the tree has grown around or other bits of metal.
These bits of metal, depending on their size can damage saw blades,
as well they pose a risk of flying metal. It is imperative that
EVERYONE working around a milling site be properly safety equipped,
especially safety eye wear.
#1 - Buck the tree into usable lengths, the longer
the better, with ten feet often being the maximum length. Cut away
smaller branches and if the tree branches or "Ys" significantly
such as a split trunk, cut slightly below the the crotch of the
branching as "crotch wood" is valued by woodturners for
it's unique wood grain twists for bowls and other objects. This
is why it is a good idea to pool different types of woodworkers
on a wood recovery team.
#2 - Haul the bucked tree to a holding yard, or
if possible bring in a portable sawmill and cut it where it is,
if this is allowed. Often the sawmill operator can help you determine
the best way to cut wood the wood in planks for use in furniture
and other building needs. If there is no body in your club with
this experience it is wise to study the best way to cut a log into
planks. The thickness you cut the wood will be determined by whether
or not you are going to air dry or kiln dry the wood. As a guideline
we suggest cutting planks approximately eight inches wide and two
and a half inches thick by six, eight or ten feet long. This will
give a green piece of lumber that once dried will shrink to a usable
size.
#3 - After the wood has been cut into planks,
determine if the wood will be sold green or processed (kiln dried).
Clean up the holding yard and prepare to sell the milled wood or
haul it to kiln for drying.
#4 - Drying green wood can take days in a heat
drying kiln, or weeks in a solar or evaporation drying kiln. Many
hardwoods are either air dried naturally, or dried in solar or evaporation
kilns that dry the wood slowly, thus helping to reduce twisting
of the wood.
#6 - Sell the wood to wood club members, and donate
portions of it to local schools and other woodworking programs to
help out your community.
We also suggest that the members who work within the wood recovery
program be the ones given first right of refusal for purchasing
the wood when it is ready to be sold.
REMEMBER - The first time you operate your wood
recovery program things may not go as smoothly as you would like,
but each time you do this everyone learns how the process works
and subsequent events will go much smoother. Nothing good comes
without a little effort.
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