I've bought from them and am very satisfied with the products. The owner has
answered all of my e mails. I've never tried to call him. I think it is a one
man
operation so there would not be any one there all the time to answer the phone.
He
even offered to replace a breakout board if I thought it was defective. But
after a
couple of e mails I determined that I had blown an opto so I purchased some.
John
On 26 Mar 2008 at 19:55, [EMAIL PROTECTED] wrote:
> Hi
> I have provlem with www.CNC4PC.
> ehere is those company?
> Are they in USA or where?
> Every US company has a phone to call and ask questions CNC4PS doesn't.
> i send e-mail with same question and he send me phone 772-6215525
> number but nobody answer those phone. Does any one purchased any think
> from cnc4pc? thanks Aram
>
>
>
>
> >> When it comes to electronics I need all the help I can get. So the
> >> MPG puts out 4 pairs of signals and the LM399 converts that to 4
> >> outputs? Lots of googling going on... and EMC needs? I'm just
> >> looking at a MPG spec sheet and they only have 6 connections so I
> >> assume one is ground, one is power in and the other 4 are the
> >> signal coming out. Now I'm really confused. The LM399 has 8 inputs
> >> and 4 outputs. Can you explain just a bit more for me please.
> >
> > The cnc4pc jogwheel has A and B outputs ('single-ended' if you
> > like). These plug directly into the A and B channels of a hardware
> > encoder counter (m5i20, pico-systems, vital, etc.). If you don't
> > have a spare encoder input the jog-wheel could be read by two
> > general purpose I/O pins (e.g. parallel port) since you are not
> > likely to spin the jogwheel very fast.
> >
> > Some jogwheels use differential signals, which means instead of just
> > the A and B signals you get A+, A-, B+, and B-. If you have I/O to
> > spare you could wire all four of these to EMC. If you want to
> > condense these four into just two A and B signals you can do that
> > with an IC. I did that with a DS3486.
> >
> >
> > AW
> >
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