Sixth Sense

Sixth Sense
 
1.1 w x 0.9 d x 1.1 h in cm |

Size 8, 18.54 mm inner diameter. This six-part puzzle ring is a design by Bram Cohen. Bram writes: "This six-banded design is a straightforward extension to the traditional four-banded design which somehow never occurred to anybody before me".

Watch the YouTube video
Read at the Shapeways Forum


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Dear Ignakano,

The concept of puzzle rings is already very old. Bram's design is special because of its specific weaving pattern, which is quite different from the classic many-band weaving. Bram Cohen design is also significantly harder than the classic designs.

Oskar
Fri Jul 23 12:43:51 2010 by Oskar_van_Deventer
Not sure when Bram Cohen had the idea, but if it was after 1997, I know for a fact that the idea was not new.

Back in 1997, I bought two 7-band ring from Orb Silversmiths (we use them as wedding bands), and they had rings up to 17 bands, if I recall correctly. They seem to have gone out of business, but http://www.puzzlering.com/ has quite a few designs, although not the exact 7-band models we got.
Fri Feb 12 01:32:48 2010 by lgnakano
See YouTube clip at
http://www.youtube.com/watch?v=EdjWlmrYu1k
More info at Shapeways Forum
http://www.shapeways.com/forum/index.php?t=msg&th=1109&start=0&S=d5011dbedb9705a809887e6a3677f35a
Oskar
Sun Jul 12 18:58:27 2009 by Oskar_van_Deventer
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