Principle of RailReed shown by Marilyn 

Samples woven on a weave hacking course in Sätergläntan, Sweden. We used wool, cotton and linen for the warp.  

How to attach to the beater

Weaving with RailReed

So here are some notes about using RailReed:

When prepairing the warp I have noticed that

1) bulky yarns for warp are difficult, as when you push the warps
together then the shed can not open, the warp gets tangled 

2) do not thread only one warp yarn through each slot of the RailReed: this
does not give enough "fabric". You need more crossings between warp and
weft to make the warp lines stay.

3) I have used up to 8 warps in one reed slot, the latter was some
smooth cotton; also sewing thread for warp has worked well. Then I would
have to push the edge weft down sometimes (with fork or thingers), when
it starts to rise. One weaver said that she invented a solution for
that: she had two pieces of ordinary reed and she threaded the edge
warps at first through the reed and then through the RailReed. cool!)

4) thread some warps between the modules also, then you can make use of
moving the modules away from each other and some warp still supports the
long weft floats

5) to make for instance some sections of warp of different colour (one
module, or the edge slots of each module), then the fabric shows the
wavy floats of colour

6) as to how to move the modules while weaving, I grab the module from
the sides and push it along the rail. I usually do not use the fixing
pins at all, or I use them only where the tension of the moved warp
tends to move the module.

7) It is cool to use heavy weft (even stripes of wool), so it is
possible to play with the outer form of the fabric: heavy stiff weft
holds the altered form

8) And of course as you can remove the modules, then it is possible to
turn modules upside-down, or 180 degrees and make twists in warp groups,
but I have not experimented with that too much. Rigid heddle modules I
made work better in that.

Endless Possibilities

Adjustable width enables shaping of the garment on the loom. Idea: Marilyn Piirsalu

Woven by Anneli Säre with RailReed Small on Saori

Kadi Pajupuu with 5-module RailReed. Cotton warp, wool weft.

Marta Tuulberg wove this fabric with 12-module RailReed.
Design: Anneli Arro.

RailReed consists of five modules that enable the user to adjust warp density while weaving. 

Look how they move! 

This sample is woven as a double-weave tube. Warp is cotton and weft is paper-yarn, adjusting the width of the fabric while weaving makes it possible to weave wavy forms. 

RailReed can be fastened to a handloom. (Table loom is too small for this RailReed model)

Woven by Juula Pärdi with 5-module RailReed

With RailReed you can utilize warp density as an extra creative avenue, create new structures and even change the width of fabric while weaving.

Making twill-lines dance. 12-module RailReed

Woven with 5-module RailReed. Cotton warp, wool weft.