Re: [CAD_CAM_EDM_DRO] Power Supply Box's

Thanks for taking the time Darren, I hope I'll have it even easier than yourself due to no plasma cutter supply adding noise. I'm not sure if a VFD is worse or better, but time will tell. I plan to mount the box on the side of my machine on a rail so I can position it anywhere down the length of the unit, that way I don't need a huge/long pendant cord or have to walk to the opposite end of the machine to do some little tweak or program start etc..

Jarrett
[Btw, you get all this snow down in ND? I woke to a 4ft drift in my driveway this am.]

----- Original Message -----
From: Darren Lucke <oneluckeboy@...>
Date: Tuesday, November 28, 2006 8:38 pm
Subject: Re: [CAD_CAM_EDM_DRO] Power Supply Box's

> Jarrett,
> Not sure what others will say but I did exactly this
> on my plasma table and it's been working for me.
> Couldn't get the hi freq plasma (almost 14 yr old
> machine which was very electrically noisy) to work
> consistently on it but now that I bought a new plasma
> machine (now using Hypertherm 1000 which is NOT
> electrically noisy) it's working quite well!
>
> In troubleshooting the hi freq plasma, we determined
> that my enclosure was actually better at reducing the
> hi freq problems than the original comp case (steppers
> were being affected) by removing all components,
> testing, reinstalling, etc (a LOT of work).
>
> I did make certain to isolate all of my comp boards /
> power supply boards with nylon bolts / standoffs to
> hopefully ensure I didn't get any ground loops as well
> as using all suggested wiring techniques by this group
> and others with twisted pair wires w/ drain wire
> connected at power supply board.
>
> I perhaps could have gotten the hi freq to work
> consistently if I would have shielded / partitioned my
> enclosure separately from power supply / mobo, etc. I
> installed everything in a filtered pressurized
> enclosure in order to seal out (attempt anyway) the
> plasma cutting dust!
>
> I use CandCNC.com's MP1000 THC (Thanks again Tom for
> all of troubleshooting help w/ hi freq) and their
> associated cards for breakouts, limits, power control
> modules, etc. hooked up to 69vdc powersupply
> (homemade) with Geckodrives.com's G201's driving the
> steppers.
>
> Darren Lucke (very satisfied customer!)
>
>
> --- Jarrett & Heidi Johnson <hjjohnson@...>
> wrote:
>
> > What is the implications of building a power
> > supply and computer box
> > together?
> >
> > I've been tossing around the idea of building
> > a dedicated power
> > supply box which not only houses the power supply
> > but has the needed VFD,
> > G100, drives and spindle control interface card [
> > Digispeed?] as well as
> > any other little relay's etc. In addition to this
> > I'd like to mount my
> > computer components right into this same box, MoBo,
> > Drives, Video card and
> > have a touch screen and industrial keyboard. Is
> > having all of this in 1
> > control box asking for problems? Should I be
> > segregating the computer
> > components from the rest of the power supplies and
> > VFD [ partition the box
> > to help eliminate RF and other gremlins into the
> > works]? I'd beening
> > thinking about just buying a bare bones kit from
> > TigerDirect.ca [or the
> > like] and using the guts outta it, not the case
> > [well maybe switch out my
> > old plane Jane case on my home comp. for the new one
> > if it was fancy].
> >
> > Crazy?
> >
> > Jarrett Johnson
> >
> >
> >
>
>
>
>
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