What Power Supply?

[JavaDog]

Ok, as I am getting into the construction phaser of my CNC router - I have been putting off this part.

I am using Gecko G320s and Servos from Jeff @ HomeCNC. I need to find a powersupply that will work with this set-up. Sadly, I am not savvy enough to build my own. So, any help/recommendations would be greatly appreciated!

Here are the specs on my Servos:

[2muchstuff]

Building one is not hard at all.

[ViperTX]

Darn those are "pee wee" servos......so 36 VDC at 3 amps for each......so what you need is a 36 VDC power supply with a 10 amp rating and surge capability of double that......can you wire stuff?

[JavaDog]

Originally Posted by ViperTX Darn those are "pee wee" servos......

What do you mean?

Originally Posted by ViperTX so 36 VDC at 3 amps for each......so what you need is a 36 VDC power supply with a 10 amp rating and surge capability of double that......can you wire stuff?

Jeff that sold me the servos also sent a PDF with some schematics for making a power-supply. It looks pretty straight-forward, but I'm only used to working with DC...

[ViperTX]

JavaDog....well the only problem with working with AC is to wire the Line and Neutral correctly to your AC power switch. I suspect that Jeff sent you a schematic of a power supply built with a toroidal transformer?

[DieGuy]

JavaDog they are dead easy, Have a look at the whitepaper @ gecko site.

[JavaDog]

Originally Posted by ViperTX JavaDog....well the only problem with working with AC is to wire the Line and Neutral correctly to your AC power switch. I suspect that Jeff sent you a schematic of a power supply built with a toroidal transformer?

Yes, I believe so. I would post the diagram he sent, but it is something he includes with his auctions - so I don't want to post it unless he says OK.

Originally Posted by DieGuy JavaDog they are dead easy, Have a look at the whitepaper @ gecko site.

I'll take a look.

So, where does one source a toroidal transformer? How do I know what one is the right one?

[ViperTX]

Toroid search on ebay.....you'll need something in the 25 to 27 VAC Secondary at 15 to 20 amps.

[DieGuy]

Here is a link to the PILTRON rating tables. Got no idea on price for these YET!

http://www.plitron.com/pages/Products/Std/ratings.htm

[2muchstuff]

If you click on "order" then "prices" you will find everything needed. For a 625 va and 750 va torroid you are looking at almost $100. -OUCH-
Maybe I'm too much of a tightwad, I would rather find a surplus one and rewind it.

[lerman]

I got my 1200VA toroid from: http://www.avellindberg.com

Plitron wanted $112 dollars for the toroid that I got from avel lindberg for around $80.

Plitron also quoted 4-5 week delivery -- Avel Lindberg had it in stock. I also saved shipping because they are here in Connecticut.

Just a happy customer.

Ken

[Bubba]

Javadog,
For my transformer, I re-wound the secondary of a microwave and it does just fine. You will find a "how to" on the Zone at:
http://www.cnczone.com/modules.php?n...warticle&id=27

Easy to do and cheap