Re: [cad-cam] RE: [CAD_CAM_EDM_DRO] Re: newbie

On Fri, 5 Dec 2003 09:27:36 -0700, you wrote:

>> Well, one very important thing (to me) is opto isolation
>> between the driving computer and the motor controllers.
>
>I have been using home built CNC machines for about 4 years now. Plenty
>of them have not had any opto isolation and they worked just fine. I
>have never fried a computer or a drive. So while some people consider it
>essential, others are very successful without.

I am a paranoid engineer/software programmer/systems designer (yeah,
done all three at various times).

I will over-engineer, and put in protection, be it in software or
hardware. It's a matter of personal choice, but I don't regret doing
it this way.

Harvey

(sometimes the diagnostic LEDs and stuff really make life easier, and
that's over-engineering, too...)

>
>Tim
>[Denver, CO]
>Visual Mill 5.0 Basic at a price too low to post!
>
>Sherline & Taig products at Deep Discount
>Mach1 & DeskCNC with credit card ordering
>www.KTMarketing.com/Sherline
>Timg@...