14
Tying the treadles
In hardware bag 6 you will find shorter and
longer tie-up cords for the treadles.
The tie-up cords are pre-cut in the correct
lengths. The longer cords should be used to
connect the upper lams to the treadles, the
shorter cords should be used to tie the lower
lams.
If a shaft is tied to a treadle by means of its
upper lam, the treadle will pull the shaft down,
so the tie-ups to the upper lams correspond to
the X marks of a weaving draft. If a lower lam is
tied to a treadle, the treadle will lift its shaft up,
so these tie-ups correspond to the O marks.
Tying-up a countermarch loom, using a
weaving draft for a singular tie-up, that only
shows X marks, the blank squares are the
tie-ups to the lower lams and the other way
around, if the weaving draft is showing only O
marks, the blank squares are the tie-ups to the
upper lams.
First make the tie-ups to the upper lams. Loop
the cord around the lam and pass one end
through the last loop (see page 2) in the other
end. Tighten it after the cord is positioned in the
groove in the lam, right above the treadle to be
tied.
The tie-up cords of the upper lams have to pass
the lower lams. As a rule these cords pass
behind of the lower lam, associated with the
same shaft. That will help you to avoid the error
of tying-up both the lams of a shaft to the same
treadle: In front of each cord passing the lower
lams, the groove in the lower lam should not be
used for a tie-up.
The cords should be tied to the screw heads on
a treadle in a sequence, corresponding to the
shafts.
Tie the lower lams to the treadles: Each groove
in the lower lams that is not past behind by a
cord should be tied to the screw head on the
treadle right below.
When all the tie-ups are made, check if all the
cords are about the same tightness. If there are
big differences, you probably misjudged which
loop was the last loop of one or more cords.
Another cause may be that one or more lam is
not fixed to the right level (see next subject).
All shafts will be tied to all treadles used, some
to rise and some to fall. If you want to change
the tie-up, only unhook the cords from the
screw heads and slide the cord over the lam to
the groove where you need it. On some lams
you will need to add more cords, on some lams
they will be left over. You may leave that cords
looped over the lams at the sides.
Adjusting the shaft bars and lams
Shafts and lams are already adjusted of the
correct height. They may need a correction
after some time.
You can check the correct level after putting the
locking pin into the hole at the top of the castle
and through the marked loops of the parallel
cords. Now the whole system is locked in its
neutral position. If the marks on the cords fade,
mark them again with a felt pen.
The adjustment of shaft bars and lams can be
done in steps of 12 mm, by clicking them into
next loop of the cord. For finer adjustment you
have to turn the white nut that adjusts the hook,
attached to the cord.
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