Tuesday, April 17, 2012
Saturday, February 12, 2011
Saturday, September 4, 2010
Spent this Saturday adding much donated yarn to the Giant Yarn Ball- thanks to everyone for the leftovers!
The GYB now weighs 60lbs, and is difficult for me to lift, although still relatively easy to roll and rotate as I'm winding.
Among the bags of yarn I was using, I came across a small number of handmade yarn balls wrapped so that they could be pulled from the center, like commercial skeins of yarn. I unrolled one to see how it was made, and it seemed that the yarn was simply wrapped in alternating bands always at right angles to one another, with the center strand left long so it could hang out of the finished ball. I've never seen this trick before, and it works well!
Saturday, July 3, 2010
Wednesday, June 30, 2010
There's a great story about a giant string (and yarn) ball contest in Robert McCloskey's "Homer Price", which I re-read last year.
The GYB is maintaining it's sphericality well so far, but I'm worried: other really big balls of string I've seen on the internet are all lopsided; I don't know if it's due to unequal wrapping as the thing gets too heavy to turn easily, or the force of gravity.
Poolside consulatation with Rod, engineer extrordinaire, raised the possibility that the yarn ball flab I'm trying to avoid is due to crushing; according to Rod, when steel cable is wound on drums the inner layers can wrinkle up under compression from the outer layers, behaving like a fluid unless the tension is graduated carefully from inside to outside of the coil.
Wednesday, June 23, 2010
Sunday, May 30, 2010
Assuming the density will remain constant as the GYB grows to it's full 9-foot diameter, it will eventually weight about 5275 lbs, which seems believable.
Yarn comes in standard 4 oz. skeins. The GYB will require 21,100 of these skeins to reach its maximum size.
Wrapping these skeins at 20/day will require about 1000 days, or 3 years.