I would like to make a scarf from an undulating twill draft from Handwoven.net:

http://www.handweaving.net/PatternDisplay.aspx?PatternID=61537

How many threads extra should I add on each side for a plain or flat twill selvedge? And where do I thread them, and then how to tie them up? and then will they just treadle with all the other threads? 

I just cannot visualize how to make this work?

I have 8 shafts and 10 treadles and want to use 8/2 tencel.

I read, but don't understand, about adding selvedges on Dorothy Stewarts's blog. She quotes someone about using 12 extra threads on each side, but would that be true for all kinds of yarns?  Did anyone else see this and try it and can explain it? 

http://dorothystewart.blogspot.com/search?q=selvedge

 "Janet uses a special selvedge threading for all of her projects. She uses 12 or 18 threads on either side of a scarf for the selvedge. If, for example, you thread at 24 ends per inch and sley 2 to a dent you would perhaps use 12 selvedge threads and thread them from the right edge, 2 in the first heddle, 1 in the second heddle and repeat for a straight draw until the 12 threads are used up. You would repeat that sequence on the left edge finishing with 2 threads in the last heddle."


Comments

ReedGuy

Note that, that draft is rising shed like on a jack loom. On the back side your going to have 6 end wide weft floats. Seems like something for jewelery to catch on easily. However as to tie-up for the selvedge, it is as is, if you want the pattern to come out in the body. Two of your treadles are not going to be used. The number of extra ends used at the selvedges depends on sett, desired width, and whether the last end can get caught every other pass of the shuttle. Without a floating selvedge, I don't see how the outter ends aren't going to have a 3 weft long float every 5 picks.

laurafry

At 24 epi, a three thread float really isn't going to be a problem. I am at this time weaving an undulating twill in silk. If you want to see the draft, I blogged about it a few days ago Http://laurasloom.blogspot.com Scroll down until you see the draft S roll down further to the post showing the selvedge. Cheers Laura

laurafry

selvedge

This is the selvedge on my silk scarves - 4 shaft undulating twill draft as shown in my blog.  The yarn is 2/20 silk and the photo is larger than life so you can see it clearly.  If you can't be perfect, be consistent.  :)

cheers,

Laura

ReedGuy

The thing is, this draft is not the same on the back side, there are 3 one one side and then 2 floats on the reverse. And you will not avoid scalloped edges. It may or may not make a difference to the OP. I had looked at the draft linked to and played around so that the ends of the twill would flow out to the edges on 12 ends, but there was no way to get away from the floats with out using a couple extra ends for a floating selvedge. However, scalloping can have an interesting look, and may be just fine and dandy to some. ;)

Bonnie Inouye (not verified)

What Dorothy wrote is that she threads about 12 ends in a straight draw at each edge of the scarf, instead of the undulating threading sequence. Also she sleys these ends a little closer than the rest of the piece, but not twice as close. Using a straight draw threading (1-2-3-4-5-6-7-8 or the reverse) helps eliminate the longer floats at the edges. It is worth a try.

Many weavers thread some basket weave at the edges when weaving twill. This has been discussed on Weavo. It is easier if you have additional shafts for the edge threads.

Bonnie Inouye

planttapestry (not verified)

Thank you all for your replies. I am studying up on what you all have said so that I can express the questions which are coming to my mind with a bit more intelligence.

ReedGuy

I never saw a difference in floats with the straight draw myself. Just looking at the tie-up will tell you your going to get 3 floats anyway.