I am a frequent Ponoko user and current Prime member.
Among the things I create, I make and sell jewelry, including a lot of rings and pendants. Unfortunately, the jewelry does not meet the minimum volume requirement to be fabricated by ponoko in steel or steel/gold plate. Instead, I use Shapeways to fabricate in metal, but I have been very happy with the customer support here at Ponoko and would like to get my fabricating done all in one place. I'm wondering if you'd consider reducing the minimum volume requirement. Perhaps, if necessary, you could create a minimum charge for low volume items so that it would still be worth your while financially to produce them.
Thanks very much.