Re: Power Supplies for Geckos

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "machinist24540 <ace@d...>"
<ace@d...> wrote:

> Hello,
> I am upgrading my BOSS 3 with 210 Geckos.
> I plan to use the origional steppers.
> The power supply is messed up. (I replaced all the bridge

rectifiers

> but to no avail.)
> I was looking for power supplies but am not sure what to get.
> I found some 65 V 15 Amp from TTI for $300 ea.
> Any other suggestions?
> Thanks,
> John

On several machines I've used variable transformers. You can find
them on Ebay for $25-$80. Just add a rectifier & 1000mfd/amp in
capacitors and your ready to go.

As a bonus you can "fine tune" the supply voltage to anything you
like within your motors ratings.

For larger supplies I've also used 3 phase ganged variacs & rewired
each phase for a different axis. This way each axis has it's own
independant power supply.

Add a cooling fan to the variac and you could push it's ratings a
little higher.

Chris