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Last Edited: May 15, 2019, 7:42 pm
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Half Persian 2 in 1 Spine Tutorial
Article © MAIL User: Chainmailbasket_com
Note: All ARs listed in this article are based on measured inner diameter and measured wire diameter.
Minimum AR: AR of 3.8
Recommended AR range: AR of 4.2 - AR of 4.6
HP2-1 Spine is AR sensitive and gets loose very quickly above the mid 4's, however, if the AR is too low the chain has the tendency to develop a weave lock feature. It doesn't stay fully locked and rings can "click" in and out of positions starting around AR of 4.2 where whole thing can be manually placed into a spiral. At the minimum AR, the chain is forced into a spiral, but still has considerable flexibility. If you are expanding the weave into a sheet or tube, ensure your AR is high enough (refer to table at end of article). If not, experiment with different ring sizes for the outside edges of HP2-1 Spine.
Rings used in tutorial:
.080" (2.0mm) aluminum (5356)
5/16" (7.94mm) mandrel
.341" (8.66mm) ID
AR of 4.3
Construct a 2 in 1 Chain.
Notice how you can make a Persian arrangement of the rings. This HP2-1 is only a theoretical weave.
Add 2 rings, each using TE connections with one on each side of the chain. These rings are added the same way that rings are added to European 4 in 1 when expanding by row. The red dots in the first image below illustrate where these rings connect.
Close both rings. The red dots in the image show which rings the next added will pass through.
Twist the 2-1 Chain section at the top into position and make the through the eye connection. The red dot and red arrow show where the next added ring goes.
Add the next ring to the bottom of the chain and close both rings.
Another repeat picture with red dots to show where the next rings are added:
By now you should have an idea where the next ring goes:
Optionally, you can assemble the chain by adding all the rings along one half:
Flip the chain over:
Align the AE connections properly since they are still in an unstable state:
The next ring is added:
Complete the row of TE connections:
Add a single ring to the top right:
Lengthening the chain:
Flip the chain over so it's right side up again.
Add a TE ring to the end:
Add an AE ring to the end:
Add a single ring under the previously added ring:
Close that ring and add a TE ring and a single one above it.
Repeat these last few steps until the chain is the length you want.
When picked up by one end, HP2-1 Spine will naturally spiral.
This chain can be expanded or transformed into:
|Weave||Recommended AR range||Assembly|
|Persian 4 in 1 Sheet/Half Persian 2 in 1 Sheet 4||AR of 5.2 - AR of 5.7||Half Persian 2 Sheet 4 in 1 Tutorial|
|Tri-Force||recommended AR of 4.4 - AR of 4.6||HP2S4-1 Tutorial to Step #4, then apply 1 less connection per ring than demonstrated in How to Join Half Persian 3-1 Sheet 5 to Make Square/Trianglemaille article.|
|Power Tower/Half Persian 2 in 1 Sheet 4 Box||recommended AR of 4.2 - AR of 4.4||HP2S4-1 Tutorial to Step #13, then apply 1 less connection per ring than demonstrated in How to Join Half Persian 3-1 Sheet 5 to Make Square/Trianglemaille article.|
|Ulu 4 in 1 Chain||circa AR of 5.4||Transform HP2-1 Spine by opening each ring on one edge and adding an AE connection to the corresponding rings in the opposite edge row.|
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