Re: [CAD_CAM_EDM_DRO] Cheap Power Supply was Re: low cost drivers

Hi... I thought I check out the 56 volt transformer, was it at the
skycraftsurplus web site? I went there and couldn't find it.....

thanks
RC

----- Original Message -----
From: mariss92705 <mariss92705@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Friday, May 31, 2002 3:53 PM
Subject: [CAD_CAM_EDM_DRO] Cheap Power Supply was Re: low cost drivers


> Hi,
>
> I went to this link and noticed a 56 volt AC, 8A transformer for $20.
> Add a 10,000 uF / 100VDC cap (DigiKey # P10040-ND $15.25 each), a
> 25A, 400VDC bridge rectifier (DigiKey # GBPC1506-ND $2.88 each) and
> you have a nice 75VDC @ 8A, 600W power supply for about $38. You
> could do it for less if you got the cap surplus somewhere.
>
> Mariss
>
> --- In CAD_CAM_EDM_DRO@y..., "rekmac" <rkonnen@t...> wrote:
> > Thank you for the feed back, it is being very helpful. I still
> > haven't firgured the higher voltage ,power resister thing yet
> though.
> > A couple of other things to ask or add. I found out the steppers I
> > have are Bipolar if I understand it right, 4 wire. What ideas on
> > drivers for these? Also found a place that may hay a good source
> for
> > surplus and a good selection for power resistors. You have to call
> > though, they don't list much on their site.
> > http://www.skycraftsurplus.com/
> > Thanks,
> > Richard
>
>
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