Schacht End-Delivery Shuttle
"The best thing since sliced bread!"This shuttle has been designed especially for
the handweaver.
It will make weaving easier and smoother and will help you improve your selvedges.
The Schacht End-Delivery Shuttle
easy to thread
lightweight
designed for handweavers
comfortable to throw and catch
adjustable to a variety of yarns
15" shuttle uses standard 8 pirns
12" shuttle uses standard
6" pirns

How the end-delivery
shuttle works
The end-delivery shuttle has a pirn which remains stationary, instead of a free-spinning
bobbin. The weft yarn unwinds off the pirns tip when the shuttle is in motion and
stops unwinding when the shuttle stops. It comes off the pirn and goes through a set of
tension pads and comes out of the shuttle at a constant tension, which you can adjust
using the enclosed Allen wrench. This even delivery of weft causes less draw-in, which in
turn makes better selvedges.
Resist the temptation to handle the weft yarn at all. Simply adjust the tension to suit
the cloth you are making and allow your shuttle to do the work, making your weaving go
more rapidly than ever.
How to wind weft yarn on the pirn
It is important to wind the pirn so the weft yarn unwinds smoothly. A double-end bobbin
winder which holds the pirn firmly at both ends works best. Single-end winders can be
used, although you may need to wrap the winder spindle with a little paper and tape, so
that it holds the pirn firmly.
The weft yarn must be wound very tightly. Begin winding at the funnel-shaped end of the
pirn. Follow the funnel shape as you wind the weft, winding a series of concentric cones
along the length of your pirn. You will be moving the weft yarn back and forth in a
criss-cross motion over about 1 1/2, moving gradually toward the tip of the pirn at
about a scant eighth of an inch at a time. Once the yarn has almost reached the tip, stop
winding. The wound pirn should be cylindrical in shape and approximately 1 1/8 in
diameter, tapering off at the tip. Do not go back to fill in any uneven areas along the
length of the pirn. Your technique will improve after you have wound a few pirns.
Positioning the pirn in the shuttle
Push the spindle up from the bottom of the shuttle (the spindle only comes up about 30
degrees and locks in place). Slide the pirn all the way on until it is fully seated on the
spindle. Lower the pirn back down into the shuttle. The pirn should be level.
The position of the pirn spindle has been set at the Schacht factory. Over time you may
need to adjust the pirn position slightly up or down. Find the spindle-adjusting screw on
the bottom of the shuttle. It is inside the hole directly beneath the pivoting end of the
spindle. Raise or lower the spindle by turning the screw clockwise or counterclockwise
respectively, using the Allen wrench which came with your shuttle. This adjustment rarely
needs to be done.
Adjusting the weft yarn tension
With the pirn correctly filled and positioned in the shuttle, pull out a few inches of
weft yarn. Hold the yarn with your finger at the tip of the pirn. Lay the yarn over the
tension pads and pull it down into the tension pads and curved slot. Now pull the yarn
slightly to the left. It will automatically go over the angle pin and be captured.
Test your tension by weaving a few shots across the beginning of your warp. If you have
loose loops at the selvedges, you need to increase the tension on the weft yarn by turning
the tension-adjusting screws clockwise. If the selvedges are drawing in, you need to ease
off on the tension by turning the screws counterclockwise.
The tension-adjusting screws are located in holes on both sides of the yarn-feed end of
the shuttle. These screws have small springs in their ends which press against the tension
pads. Use the Allen wrench to adjust these screws. In practice, very little adjustment is
necessary. (Be careful about loosening the tension pads more than a few turns or the
springs will fall out.) Once the tension is adjusted for a particular weft yarn, it will
probably not need further adjustment for the entire length of the warp, unless you notice
loops or draw-in at the selvedge.
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