We begin sawing the larger diameter logs and remove a load from the
dry kilns.
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The first of the larger logs unloaded yesterday has been bucked
to length and the end has been sawn away. John is now moving the
log over to the saw mill.
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The log has been loaded onto the saw bed and John
is checking the measurements to ensure that it is correctly centered.
This will be the first cut of the larger timbers and everything
has to be right the first time. |
| Sawing is going smoothly even as the temperature has
just risen slightly above freezing for the first time today. It
should take John and his crew about 45 minutes to complete this
timber. |
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Both of the larger logs received yesterday have been turned into
timbers for the chapel. The next step is the dry kilns. Because
of their size, these timbers will require additional drying time
to reach the 20% moisture content goal.
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| John and his crew can be seen here unloading chapel timbers from
one of the dry kilns. Remember that each timber is cut for a specific
location in the chapel frame. That's why you see timbers of varying
sizes in this particular load. |
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John checks all of the timbers to determine their moisture content.
The device he uses is an electronic moisture meter that senses the
internal moisture still present in the timbers. The instrument passes
an electrical charge through the timber and measures the internal
resistance of the wood. We tell the instrument the wood species
and the temperature of the wood when it comes from the kiln. It
uses this information to compute the internal moisture content of
the timber. |
| In this close-up view you can see how the tangs of the moisture
sensor are driven into the wood and the cable that runs to the hand
held read-out. This timber presents an 18% moisture content which
is well within specifications. |
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This is a close-up shot of the ends of the timbers as they came
out of the dry kilns. You should notice that the timber ends are
marked MC for Missouri City. When the crew begins work on these
timbers, they will mark them with a tracking number to denote
which part of the frame is to receive a specific timber.
The slight cracks you see at the timber ends are called "checks" and are a natural part of the drying process. Checking occurs throughout the timber but is most noticeable at the ends. Checks do not compromise the integrity or strength of the timber.
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All of the timbers have been removed from the dry kilns and stacked
on skids in the yard. From here, the timbers will go to the timber
sizer to receive the initial planing that will square them and
produce the first dimensional cut.
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The next load of timbers for the chapel are being loaded into
the kilns and we will continue to produce more timbers for the
chapel in the following days.
Shop work will begin the week of 01-14-02. At that time, the
crew will begin planing the timbers and start the "layout"
process.
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