The linen warps are threaded on shafts 1 and 2 and make the plain weave ground, so this structure is heavy on those two shafts. Shafts 3 and 4 are only used for the cottolin pattern warp.
With 4 shafts, there is only one pattern block; that is, the pattern area works together as a unit when controlled only with the loom. There are only two things you can make it do using only the loom: weave the pattern floats on the front/top of the fabric, or weave the floats on the back/bottom side. This is how the weaving will start out: weave the floats on the back for a while, then on the front making a red rectangle in the corners of the towel, then float on the back again. Then we'll start the patterning, which is done with pick-up. By picking up the pattern, we will cause select pattern warps to float on the front while the rest float on the back.
That's the basic flow of the draft; we'll go over it in more detail when we get to each step.
Weave along and get a chance to win the Towel of the Month! If you are weaving along, please leave a comment to let us all know. Put a link or url in the comment to a photo (on your Flickr, Picasaweb, Photobucket, your blog etc.) of your work in progress. Deadline is midnight GMT Feb 28, 2014.