On 2005-07-20, K7ITM wrote:
Cool, Ben. Thanks. I'm wondering what part you put in to get 13 cents
each at 1000 parts.

That was just an example. I just made a quick 3" diameter rotor with
center hole, laser cut from 6061T6 .047 and 1 is $103, 10 are $123,
100 are $264. It's not quite as steep a curve as the other parts I was
playing with. Since that's laser cutting you can group parts, so if I
throw on a stator too it only goes up to $404 for 100. If I go to slightly
thinner mild steel it's $254 for 100 pairs. Not sure how much difference
Al vs steel makes for this application.

I bet the turret punch would be cheaper, but it can't make the convex
curves.

If you make a die for the rotor it looks like the tooling is about $1k
but the per-part cost can go down to 15 cents each at quantity 10k (for
a net price of about 27 cents each). On the other hand, the lead time
is 72 days!

--
Ben Jackson

http://www.ben.com/