For 2 grams(net) x 20" the formulas I use show 2880 turns max and .87 in-oz max.
---In Indoor_Construction@yahoogroups.com, <indoor_construction@yahoogroups.com> wrote:
Hi Kang.
I think I found the motor she was using.
It weighs 2.116 grams including 2 #3 rubber o-rings. It is actually a 20" loop, 0.043" thick by 0.079" wide.
Regards.
Mike Kirda