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Weaving Instructions Rug Loom User’s Manual
Page | 90 Warping The Sectional Beam
and serve the same function as the apron on the Plain Beam. They give you
“reach” from the Warp Beam and allow you to weave every possible inch
until the end of the warp touches the last Harness you are using. Make them
out of a strong non-stretchable linen or cotton cord. You will need to make
one Extension Cord for each section in your Sectional Beam. For each
Extension Cord:
1) Measure a piece of cord long enough to reach from the axle of the
Warp Beam, at least one and a half revolutions around the Beam
and then reach to the back most Harness.
2) When measuring the length of the cords, take into account that,
when the warp is attached to the Extension Cord the knot
between the cord and the warp needs to fall between the
Crosspieces of the Sectional Beam, not on them. This will keep
the warp smooth on the Beam so it doesn’t go over the knots
created when attaching the warp to the cords.
3) Now double that length and cut it. All Extension Cords should be
exactly the same length, so cut them all at the same time.
4) Take the two ends of the cord and knot them together, using an
overhand knot.
5) Wrap the cord around the center bar of the sectional beam with a
larks head knot. You will also use a larks head knot to secure the
warp threads to the extension cord.
Using a Tension Box
The Tension Box is an essential tool for Sectional Warping, which:
1. Puts threads under even tension.
2. Spreads threads to the proper width of the section.
3. Makes a thread-by-thread cross.
Sectional Beam Calculation
First, you must calculate the number of spools or cones of yarn you will
need. Each section is wound onto the Sectional Beam separately; therefore,
you’ll need to have one spool or cone for each end in that section. For
example, if your section is 2” wide, with sixteen E.P.I., you would need
thirty-two spools or cones of yarn.
To prepare for Sectional Beam warping, we need to calculate: