On 9/6/11 2:08 PM, David Jordan wrote:
> PPM's are great if you have $4,000 for one...
>
Exactly... seems you could find an off the shelf collection of parts
that get you there, perhaps with a bit of bracket fabrication (mind you,
where I used to work, the words "all you gotta do is fabricate..." were
guaranteed to result in giggles if not outright guffaws)
But these days, $300 gets you a brand new 2HP TEFC motor, another couple
hundred gets you a variable speed drive for it. The gearbox is going to
be a bit tricky, because you need several stages if you're doing
standard planetary gears to get down to the 1 RPM sort of speed you want
from 1750. But even so, I don't see it being more than $1000-1500 all told.
I suppose the market is SO tiny that it's not worth it for someone to do
anything more than a custom one-off. The existing products from M2 or
AlfaSpid or whoever are sufficient for 99%, and for the 1%, you're going
to be cobbling up something custom anyway.
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