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You are here: Home / Archives for network drafting

January 11, 2009 by Tien Chiu Leave a Comment

More doodling with network drafted huck lace

Following Bonnie’s advice, I tried playing with interleaved drafts and block substitutions in Fiberworks PCW.  I couldn’t get interleaved drafts working since the interleaving would be A-B-A-A-B-A (where A is one draft and B is the other) and I couldn’t figure out how to do that in PCW, but the block substitutions worked great.  So I drew some semirandom lines (a set of circle-like curves, a set of jumpy (“flea”) lines, fiddled around and got it into the huck lace network, and produced the following (all treadled as drawn in, for the sake of simplicity):

First I used the standard “straight” tie-up that came with the block substitution:

random-lines-24-shaft-block-substitution-se-nw-tie-up(Here is the .wif file, if you are interested in examining it more deeply, since the tie-up and threading/treadling are nearly impossible to see in the photo).

And then I tried it by modifying swaths of the tie-up to produce a black-and-white double curve:

Network drafted huck lace, tie-up in double curve
Network drafted huck lace, tie-up in double curve

You can see here that the basic design line remains the same, but the way it’s filled in is much more complex and exciting.  (Here’s the .wif file.)

And then I tried it with the random tie-up I used in my last post:

Network drafted huck lace, random tie-up
Network drafted huck lace, random tie-up

You can see that the design line is radically different, not too surprising since the line of the tie-up is also quite different.  I’m still trying to figure out the influence of , say, diagonal lines vs. horizontal/vertical lines vs. curves in the tie-up – I imagine knowing this will come in handy in later experiments in network drafting.  At any rate, here’s the .wif file.

I have been making rapid progress on the last of the color-change shawls – about a foot and a half woven so far – and am hoping to finish it up today.  Later today I will also dye the yarn for the samples for the cashmere coat – which will be next on the loom.  I’m also going for a bike ride – a short one, since training season is just beginning!

(I have not yet decided whether to do AIDS Lifecycle, but have decided to train – and sew – as if I am, since otherwise I’ll have no hope of finishing either training or sewing in time.  If things get too intense in the spring, I can always drop out.  I’ll do my fundraising later, I’m not seriously worried about raising the minimum since I have a large donor base (I hope!).)

Filed Under: All blog posts, textiles, weaving Tagged With: network drafting, weaving drafts

December 21, 2008 by Tien Chiu Leave a Comment

Hot off the loom

Here is the latest shawl, the slow color progression from one end of the shawl to another:

Third gradated-color shawl, before wet finishing
Third gradated-color shawl, before wet finishing

It’s a hideously bad photo (the colors are NOT true), but it gives you some idea.

This shawl represents a turning point for me: it is the first shawl I’ve produced that is (I think – still need to look it over closely) technically flawless, that I don’t feel the need to apologize for in some way.  I’m not sure I like the colors (too much yellow, I think) but in pattern and in weaving it’s pretty darn good.  I could enter it in competition, or sell it, without reservations.

Next up on the loom will be the precision dyeing “faux weft ikat” using a knitted blank.  This will be interesting.  I calculated the exact number of inches in a single shot of weft by weaving 10 shots, then carefully unweaving them and measuring the length.  Then I divided by 10 to get the average length, far more accurate than measuring a single shot.

Then I asked Nancy to knit me a blank with each row exactly the length of a single shot.  She returned the blank to me a few days ago, so now – at least in theory – I can dye the blank in patterns, unravel it, weave it up, and the same patterns will appear in the finished cloth.  Weft ikat without the frame and tying.

In practice, of course, I expect the numbers to be slightly “off” in one direction or another.  If it’s too long, the patterns will drift slightly diagonally (at least in theory; I have to do some tests to understand exactly what will happen).  If it’s too short, I can either live with drifting patterns OR cut off a few warp threads at the edges to make the piece a little narrower.  There will also be some variation in the length (even a knitting machine is not 100% constant) so the image will be somewhat fuzzy, even if it turns out to be an exact match.  Finally, the image will be much longer on the machine knitted blank than it will be woven, because of the taller rows that knitting produces.

Because of all this, I think I’m going to try dyeing a sample first (always sample!) and see what happens before committing the rest of the blank.  I think I will do big yellow dots on a deep orange background (though I haven’t decided for sure yet), and change the weave structure to something very simple, probably the 4-shaft goose-eye pattern.  With so much color going on, a complex weave structure would be pure chaos.

Filed Under: All blog posts, textiles, weaving Tagged With: gradient colors, network drafted shawls, network drafting

November 19, 2008 by Tien Chiu Leave a Comment

Reprise

I finally managed to twist the fringes, wet-finish, press, etc. the changing-colors shawl today at lunchtime, so I couldn’t resist posting a new set of photos.  I’ve Photoshopped them in an attempt to get the saturation to where the shawl actually is, but it’s just about impossible to capture the sheen of the silk in a photo, so if you really want to know what it looks like, you’ll have to come have tea with me.  🙂

I am actually pretty pleased with this shawl, though I consider it more of a hasty sketch than a carefully painted study.  It has some flaws, not fatal ones, but on the whole, it’s beautiful – especially close up, where the yellow stripes aren’t as pronounced.  Crumpled randomly into a pile, it is a collection of ever-changing colors, no square inch like another, flowing into each other gracefully – which was, of course, the point.

I have also figured out how to correct my warping problem that was creating the stripes.  The problem lies in the threading – I got the cross twisted somehow when I did my initial threading – and if I just rethread those sections removing the twist in the cross, I should be just fine.  I had thought this impossible because I am used to working with a plain beam – but with a sectional beam, I can easily identify the precise thread at which the incorrect section starts, and use my handy AVL treadling-the-threading trick to rethread the section quickly and accurately.  Hopefully that should fix it.

Tonight I am going to cut and dip caramels, tomorrow is a guild meeting.  Friday is date night, so no candy until Saturday…when I start in on fudge.  Yum!

And now, the photos….

Shawl, in loose folds
Shawl, in loose folds
Half the shawl
Half the shawl
Close-up showing the pattern
Close-up showing the pattern
Shawl, rumpled
Shawl, rumpled

Filed Under: All blog posts, textiles, weaving Tagged With: gradient colors, network drafted shawls, network drafting

November 13, 2008 by Tien Chiu Leave a Comment

More pretty pix

I got up this morning and took some photos of the shawl.  I have mixed feelings about it.

Close up, the colors are gorgeous.  But when you stand back five feet it looks like a series of stripes, and almost like a plaid in the places where I got the warp wrong and there are visible stripes in the warp.  There is a strong value contrast between the yellow and the red, which makes the yellow stand out more, and there are uneven spots where you can see a clear distinction between two of the yellows.  The pattern does not stand out in most of the areas.  So there are definitely flaws in the piece, though the overall idea is sound.

I think I’m going to weave another piece with the same colors, only this time:

  • Make each of the diamonds a single color, so the pattern shows up clearly.  Or do a gradual fade across the diamond, keeping more or less the same value.
  • Be more careful to get gradual color transitions.
  • Tone down the yellow and only go to gold, instead of fading to the lemon yellow.

This piece is pretty, but I think it could be more!  Advice on what might look nice would be welcome, I haven’t played with color theory much.  I think perhaps some more Photoshop simulations are in order before I do the next round…

The pix:

View of the full shawl.
View of the full shawl.
A somewhat closer view
A somewhat closer view
And an even closer look at one of the color transition areas
And an even closer look at one of the color transition areas
A rumpled photo, showing off some of the great iridescence.
A rumpled photo, showing off some of the great iridescence.

Filed Under: All blog posts, textiles, weaving Tagged With: gradient colors, network drafted shawls, network drafting

November 12, 2008 by Tien Chiu Leave a Comment

Woven, but not wet-finished

If I’ve been pretty quiet the last few days, it’s because I’ve been busy with Weavolution: frantically writing specs to feed to our newly-hired technical consultant.  Also prepping wireframes to go to our soon-to-be-hired graphic artist.  But mostly writing pages and pages of specs.  Not done yet, either, but I’ve made a good enough start that I think our consultant will be able to produce a technical spec out of it.  Necessary work but not very glamorous, so I haven’t been writing, or indeed doing much else.

Except weaving.  I have been weaving during my lunch hour (a bonus to working from home: you can actually do stuff on your lunch hour!) as a break from schedule analysis, the bane of every project manager.  And the shawl is now complete.

Unfortunately, the light in the evening is poor enough that it doesn’t show off the colors well, so I haven’t been able to take a good photo.  I haven’t even been able to get what I would consider a good look at the shawl, though some of that may just be mental exhaustion (I’m pretty brain-dead right now).  So I will wait until tomorrow morning to pass judgment on it.  Tentatively, I like it, although there are a number of glaring flaws in the color transitions, and I’m still not sure whether the lemon yellow was a good idea. There are definitely beautiful colors in it, I’m just not convinced whether it comes together into a harmonious whole.

Off to bed!  I can barely think straight.  Tomorrow I will take and post pix.

Filed Under: All blog posts, textiles, weaving Tagged With: gradient colors, network drafting

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