RE: [CAD_CAM_EDM_DRO] CNC interface PCB

Thanks -

Now I just need to know what the finished thickness of 1/2, 1, and
2 oz copper is with final finishing, such as tin plating. Is
there a standard for this, or is it only for corrosion resistance?

TIA,

Carlos Guillermo
VERVE Engineering & Design

-----Original Message-----
From: jimmy staton [mailto:jhstaton@...]
Sent: Monday, February 11, 2002 10:32 AM
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: Re: [CAD_CAM_EDM_DRO] CNC interface PCB

Do a search on www.google.com for a old dos based program called
amptrack it will give sizing info for PCB tracks for Amps.

>I'm wondering what it would take in terms of trace geometry to
>handle the same ratings going from screw terminals to relays and
>back on my PCB. Has anyone fried the traces on their Gecko's?
>
>Another issues is actually finding relays that can handle 80VDC
>and 20A (no, I don't plan on actually using this much power out

of

>the Gecko's...). What components are others using for estop
>relays? Are you cutting power to each drive individually, or

just

>cutting off the power supply?

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