Tuesday, October 16, 2012

Converting a Weaving Draft to Double Width

This post came from a discussion at today's meeting.  Further explanation was in order and sometimes drafts make things a bit clearer when you are battling out details.  The question arose about whether or not this lap robe of Igor's could have been woven on two shafts in one layer or four shafts double width.  Igor originally designed his draft on four shafts and then converted it to double width using the magic of a PCW weaving program. The reason he designed on 4 shafts was so that the warp would be spread over all eight shafts in the double width version.   He calls it modified basket weave and I believe another term is half basket.  The single layer drafts would have been 36" in the reed. The double width warp was 18" in the reed.
First of all, here is the draft on four shafts the way it was designed. Notice there are areas of plain weave along with two and three thread weft floats.
Next we have the completed double width draft - now eight shafts. Don't even bother to look at the floats in this draft.  Being double width, you are looking at two layers at once here.
And now to the question that came up in the meeting.  Could this same draft be woven double width on four shafts. The next draft is a two shaft version.
And through the computer magic of double width draft conversion, here is the double width draft for four shafts.  Double weave and double width drafts are always confusing because they don't reflect the true appearance of the woven cloth.

1 comment:

heather said...

thank you for this informative well written post!i often struggle with understanding a (new to me) weave structure until ive actually attempted it.double weave is a yet untried weave structure for me and this post tapped straight into my minds eye. a little sigh escaped and i thought "yes i get it now" :)