i finished sketching up the crochet patterns last week but i was at a loss for description. i have resolved to
steal use the illustrated instructions from my japanese craft books.
the hexagon is crocheted in the round. the double circle you see at the center is the adjustable center ring. as for 'triple cluster,' i don't know if it's the right terminology but the stitch sort of consists of three double crochets.*
unlike the hexagon, the halfagon is crocheted back and forth. chains should all be made the same way even though they are sketched in various sizes. so are the slip stitches (in the hexagon).
i regret that i can't offer a more descriptive step by step pattern. i'm not very well versed with crochet lingo. plus, these patterns are pretty straight forward. there isn't much i can add to make them clearer.
as for joining the hexagons, i have no good method to offer. i joined mine all willy nilly using single crochet. i hope to find a better piecing procedure. if you have suggestions, please share with me.
and if you have questions or comments, please don't hesitate to let me know, especially if you've made a granny 'square' afghan. i would love to see it, square or otherwise.
some stats on the afghan:
yarn: lace weight wool from handpaintedyarn.com
hook: us6 (4mm)
hexagons: 419 (under estimated by 115)
halfagons: 26 (over estimated by 8)
afghan size: 47 x 71 inches (unblocked)
(enough for at least two more afghans)
*more official names: bobble or puff stitch.