Re: Power Supply Questions (Wattage?)

Thanks VERY much, Dave. I'll keep the leads short. Tough to keep
this all straight when submerged in the process.

Jim Hamilton
a jeweler in MA.


"turbulatordude" <davemucha@j...> wrote:

> The resistance calculates out to 23,000 ohms.
>
> 22,600 is a standard or a pair of 11,500 would do as well.
>
> a 1/4 watt is fine as it is only for reference, not power.
>
> I would put the transformer, caps, Gecko's, relays, et-al in a

single

> enclosure. I try to keep the wiring distance as short as possible
> between the Gecko's and power supply.
>
> If you are concerned about blowing a cap and gunking up the works,
> there is no reason not to enclose that in it's own enclosure. I
> would install that in the main power supply enclosure and just

feed

> the wires out.
>
> I would not put the power supply seperate from the Geckos. If I

was

> doing a large machine, I think I would considder putting

individual

> caps at each Gecko for a few reasons. one is that smaller caps

would

> be used and that would keep the remote box small.
>
> I have a HUGE transfomer for small steppers. WAY WAY oversized

and

> needed to put it in an old PC tower case to fit it. (photos

section-

> dave's unit) you can see the 68,000 cap and 2 gecko's on a tray in
> front of the transformer. I'm running 4 steppers at a total of

9.4

> amps. And I am in the process of making a new enclosure with a
> properly sized power supply.
>
>
> Dave