Precise spindles

Andrew Werby wrote:

>
> Depending on the model, they may need an external cooling blower. If
> yours didn't have an integral blower, that's why it smoked.
>
> [These did have the integral blower and filter, actually, but I guess nothing lives forever. Maybe an external blower would have helped, but I'm not sure how the plumbing would interface with the existing blower/filter assembly. I also bought a Precise water-cooled spindle (also on ebay) but it turned out that the pipes were clogged solid...]
>
>

Yup, this is a classic problem on water-cooled spindles that were run on
city water rather than recirculating systems. On some of them the tobes
can be rodded out or removed and replaced, on others it can't be done.

>
> [I've still got a Precise 2-phase converter I never used from my days of collecting this stuff on ebay. I'll sell it to you if you want, but no guarantees...]
>
>

Oh wow! What kind is it? The MASSIVE motor generator jobs from the
60's might not be what I'm looking for, and cost a fortune to ship. If
it is an electronic one, can you give me the specs?

I did spin mine up on a Gecko stepper driver, and was amazed at how well
that worked. I have designed a sine PWM generator for one of my FPGA
boards that would run a pair of my PWM servo amps to generate the
2-phase power, with effective voltage proportional to frequency. But,
it is one of those projects that would still take substantial
engineering to actually get it running. So, let me know what you've
got, if it is compatible with my motor, I am sure interested.

Jon