Weave Study -- Third Quarter 2018
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Joined: August 05, 2010
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Location: Bar Harbor, ME, USA

Weave Study -- Third Quarter 2018
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Posted on Sun Jul 01, 2018 11:11 am
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Weave Study Threads
Purpose:
Go more in depth to specific weaves as a community.
Add information to weaves, including:
    Tutorials
    AR limits
    Related Weaves
    Pattern Information


The next 3 month (July 1 to September 30) we will be/are/were studying:
2 in 1 Captive Parallel
Iguanascale
Hikaru

Additional Links:
Link to interest/discussion thread


while(!project.isFinished())
project.addRing();
// Maille Code V2.0 T7.1 R5.6 Eo.n Fper MFe.s Wsm Caws G0.8-1.6 I2.4-8.0 Pn Dcdejst Xw1 S07

Joined: August 05, 2010
Posts: 599
Submissions: 28
Location: Bar Harbor, ME, USA

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Posted on Tue Jul 31, 2018 10:44 pm
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I've been thinking about where to start with Iguanascale for the past month...

The only info we got is that it uses 3 ring sizes.
Picture also looks like at least 2 WDs as well.

There appears to be a grain of European 4 in 1 Thrice that is bolted between chains.
Come to think of it, I can't seem to find the chain that I thought existed in the library. I initially thought it was Japanese Bullseye, but that definitely isn't it. Maybe we have a basic gap here that needs to be filled: A single 2 in 1 Chain (Japanese version) that is "doubled" in the sense that European 4 in 1 Thrice achieves.
Do we have/need a term for this type of variation? It's a specific type of scaling that doubles the weave at a 50% translation shift.


while(!project.isFinished())
project.addRing();
// Maille Code V2.0 T7.1 R5.6 Eo.n Fper MFe.s Wsm Caws G0.8-1.6 I2.4-8.0 Pn Dcdejst Xw1 S07

Joined: March 26, 2002
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Submissions: 552
Location: Chainmailland, Chainmailia

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Posted on Sat Sep 15, 2018 1:54 pm
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I’ve spent a bit of time examining the picture for Iguanascale. I don’t even know where to begin. It certainly appears to be worth the effort. Big help, eh?

Question though: what is a “translation shift“, and what makes this one 50%?


Chainmailbasket.com (2019-01-01) - 376 + 79

Joined: August 05, 2010
Posts: 599
Submissions: 28
Location: Bar Harbor, ME, USA

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Posted on Sat Sep 15, 2018 4:10 pm
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Chainmailbasket_com wrote:
Question though: what is a “translation shift“, and what makes this one 50%?


In short, I see something, and am not quite sure how to describe it.

It's the kinging change where you knit together the kinged rings to make the weave again. 50% translational shift probably is the incorrect term, in fact it's difficult to find why I was describing it that way before. Maybe this some highlighting to show.
For E4:1Thrice: Link.
For Iguanascale: Link.
Red and blue are the 2 repeated "base weave" alternating sizes. Green are the "bolted between chains".


while(!project.isFinished())
project.addRing();
// Maille Code V2.0 T7.1 R5.6 Eo.n Fper MFe.s Wsm Caws G0.8-1.6 I2.4-8.0 Pn Dcdejst Xw1 S07

Joined: August 05, 2010
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Submissions: 28
Location: Bar Harbor, ME, USA

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Posted on Sun Sep 16, 2018 6:11 pm
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I despise multiple WD examples that don't have their sizes listed. Makes it super difficult to reproduce.

In any case, making a 2 in 1 Chain "thrice" works with AR of 7.8 and AR of 4.5. I'm not a fan of how it's turning out, because it's not laying nicely. It works, though. Single AR guesses for next test are ~10, 5, and 5.6.

Pixel measurements on the weave image suggest that the ring sizes are AR of 6.5, AR of 5, and AR of 5.5 with the WD ratios at 1.4, 1.0, and 1.0.

--
Edit:

I've made an unappealing sample of Iguanascale.
Using the same WD, I used 2 ring sizes: AR of 9.0 and AR of 5.3.
It's floppy. Shrinking some of the rings may stabilize it.


while(!project.isFinished())
project.addRing();
// Maille Code V2.0 T7.1 R5.6 Eo.n Fper MFe.s Wsm Caws G0.8-1.6 I2.4-8.0 Pn Dcdejst Xw1 S07

Joined: March 26, 2002
Posts: 1877
Submissions: 552
Location: Chainmailland, Chainmailia

Hikaru
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Posted on Sat Sep 29, 2018 4:34 pm
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A small sample of Hikaru in a single wire diameter: .048" (1.2mm).

Three ring types present:

  • Large, horizontal rings, as in Japanese 6 in 1 (stainless steel):
    21/64" (8.33mm) mandrel
    .378" (9.60mm) ID
    AR of 7.9
  • Small, vertical rings, as in Japanese 6 in 1 (bronze):
    .115" (2.92mm) mandrel
    .126" (3.20mm) ID
    AR of 2.6
  • Small, horizontal rings (brass):
    .115" (2.92mm) mandrel
    .131" (3.33mm) ID
    AR of 2.7

The large rings in the sample could stand to be a little bit smaller.

Front and back are different:

"Front" displays the layer of small ring triangles.



The "back" better shows the Japanese 6 in 1 underlying structure.



Two wire diameters, as displayed in the weave entry sample picture is more ideal for:

  • A lower, more reliable large ring AR.
  • A higher, more accessible small ring AR.

The weave goes together fairly quickly.


Chainmailbasket.com (2019-01-01) - 376 + 79

Joined: August 05, 2010
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Submissions: 28
Location: Bar Harbor, ME, USA

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Posted on Sun Sep 30, 2018 12:56 am
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Every time I look at Hikaru, I think that it should have small rings on the front and back, as most of the other japanese weaves are front-back symmetric.

That being said, I think it would be slightly more loose (geometrically) if this weave was front-back symmetric, since the small vertical rings would need to increase in size to accommodate the added small horizontal rings.

--

Hopefully tomorrow, I can finally pull out my camera and add in my sample of Iguanascale to the library (with ring sizes).


while(!project.isFinished())
project.addRing();
// Maille Code V2.0 T7.1 R5.6 Eo.n Fper MFe.s Wsm Caws G0.8-1.6 I2.4-8.0 Pn Dcdejst Xw1 S07

Joined: March 26, 2002
Posts: 1877
Submissions: 552
Location: Chainmailland, Chainmailia

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Posted on Sun Sep 30, 2018 2:43 am
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Interesting, I thought the same thing regarding Hikaru. I may try this at some point.

I eagerly await to see a clear picture of Iguanascale. Smile


Chainmailbasket.com (2019-01-01) - 376 + 79

Joined: August 05, 2010
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Location: Bar Harbor, ME, USA

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Posted on Mon Oct 01, 2018 2:01 am
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After staring at my sample of iguanascale more and more...
On one hand, I feel like that one chain should be a standalone weave.
Bolting them together yields Iguanascale.
Knitting them together yields European 4 in 1 Thrice.

On the other hand, I feel like it's a rather unexplored existing weave modifier (like kinging, scaling, mobizing). Makes me want to see if it's possible with other weaves. Maybe some experiments next month...

--
Late-night math time!

According to maths, this chain's ARs are easy to calculate.
Ring sizes are AR of 2 and AR of 6 minimum.
Small ring fits 2 of the large rings in. Large ring wraps around an entire small ring + passes through 2 more (the 2 large rings it passes through are inside the small ring), thus its minimum is 4 + small AR.

For Iguanascale and European 4 in 1 Thrice, these minimums increase a bit, because they're being pulled into a european-like sheet. Their minimum are going to be closer to E4:1's minimum, which is 2.8 (let's round that to 3).

European 4 in 1 Thrice should follow the same calculation as before, just with the small ring as AR of 3... making the large rings AR of 7.

The minimum single ring ARs for Iguanascale estimates are AR of 3, AR of 3.6, and AR of 7. Everything is relative to the small ring.

Large ring must be greater than (small AR + 4).
Middle ring cousin-interacts the different rows. Smallest would mean they're stacked exactly on each other, yeilding a rectangle of shape 2WD tall and (the distance from the inside of the small ring to the outside of the large ring) wide. Calculate hypotenuse and that gives 3.6.
Mid-sized ring equation: sqrt(2^2 + ((large AR - small AR)/2+1)^2)


while(!project.isFinished())
project.addRing();
// Maille Code V2.0 T7.1 R5.6 Eo.n Fper MFe.s Wsm Caws G0.8-1.6 I2.4-8.0 Pn Dcdejst Xw1 S07

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