[MattKellett]

Hi Gil

I'm a cnc programmer and machinist for a prototype shop in the bay area.

It sounds to me that the programming of this ring would be an hour, most shops would charge by the hour. Let's say the ring is 16" in diameter and you machine from 1/2"stock without facing, otherwise you're going to have to buy 5/8" stock. So let's say a piece of aluminum 17"square, 1/2"thick is going to run about $200, and then you have to pay for machine time and set up, so lets say set up of an hour and machine time of probably an hour, so your looking at maybe 4-5 max.

So not knowing what the shop charges for there hourly rate, but I'd say that you could more than likely get these cut for $700 - $800.

Hope this will help.

OF course without actually seeing exactly what you want, the cost could be higher.

Cheers

Matt