Robert J. Lang - Scorpion HP (CP)

chesslo · Post by **chesslo** » August 30th, 2008, 3:46 am

has anyone folded this cp:
http://www.langorigami.com/art/insects/ ... _hp_cp.pdf

picture here:
http://www.langorigami.com/art/gallery/ ... corpion_hp

And may i ask what does all this coloured lines mean?

Diopside · Post by **Diopside** » August 30th, 2008, 6:08 am

Hmm, quite interesting a cp..

Those colours are annoying a bit, i couldn't even count how many grids does it have

Maybe they mean the principal folds you have to fold first then the grid, but im not sure, it's just a guess

chesslo · Post by **chesslo** » August 30th, 2008, 9:13 am

ok thanks Diopside, we will need a master to answer this one

Diopside · Post by **Diopside** » August 30th, 2008, 10:18 am

Unfortunately i don't have much time to do origami at all, if summer just began, i would give it a try, but now, school begins.. maybe next weekend i fold that scorpion, or at least try it!

Oruhito · Post by **Oruhito** » August 30th, 2008, 2:05 pm

Yes, I recently looked at Lang's new editions to his website - some incredible pieces. The scorpion is of ridiculous complexity. I'm not sure what all the colours mean - I'm actually annoyed by his new method of drawing CPs - I'm overwhelmed with an array of colours. I would try to look at a simple version of the CP and with a ruler, measure how far in a landmark reference point is and divide that by the initial width of the square: that will give you a decimal number which you can plug into reference finder.

Diopside · Post by **Diopside** » August 30th, 2008, 2:42 pm

I measured my printed cp with a ruler, and i got 98 grids!

Nice a work!:D And to make those 60°s and 30°s, really ridiculous, as Oruhito said!

ftangdude55 · Post by **ftangdude55** » August 30th, 2008, 2:50 pm

Wow. Thats a model I'll never fold. CP=Too dang confusing

Max · Post by **Max** » August 30th, 2008, 5:44 pm

I think the cp is not that complex because of its symetry...though much work to fold a large grid

Jonnycakes · Post by **Jonnycakes** » August 30th, 2008, 8:36 pm

Hex-pleating looks very interesting. It's more efficient (in theory) than box-pleating, thus it should give thinner flaps. There are also the possibilities of including 60 degree tessellation patterns and different methods of segmentation.

BluePaper · Post by **BluePaper** » August 30th, 2008, 9:17 pm

as far as I can tell, the blue and red lines are for the circle/river packing; the green,purple, and yellow (3 colors for some reason), and the black lines seem to be for squashes and other little folds. And yes, the grid is 98.

It also seems that it could be possible to have a design with both hex and box pleating.

chesslo · Post by **chesslo** » August 30th, 2008, 10:00 pm

ok cool thanks

Diopside · Post by **Diopside** » August 31st, 2008, 9:20 am

Can someone tell me what's circle/river packing? I haven't understood them.
I folded crease patterns ignoring these, but probably it would help me along a hard cp.

Post by **origami_8** » August 31st, 2008, 9:59 am

Here is a short talk by Robert Lang explaining the main prinicple of Circle Packing: http://www.ted.com/index.php/talks/robe ... igami.html

Diopside · Post by **Diopside** » August 31st, 2008, 11:12 am

Thanks for the video Anna!
Still, i won't use this type of packing, there's to much maths involved!

Since my native language isn't english, i can't udnerstand such geometric-expressions used in that tree maker, and reference finder.

That 98 grid is very bad (for me at least) 2x7x7, i can't even divide paper into 7ths, just only 5ths and 3rds..(among the prime numbers, or how do they call it in english

)
Can somebody tell me how to divide into 7ths accurately?
I don't want to divide it into more and just cut it off. It would be a waste of paper at the expense of the paper's size.
And i don't have and use larger squares than 60cm

Max · Post by **Max** » August 31st, 2008, 12:12 pm

Here you can learn how to divide into xth's:

http://origami.gr.jp/People/CAGE_/divide/01-e.html

It involves some math though its not hard to unterstand if you take some time to read it carefully