Re: Homebrew DROs

Hi Neil

I too have been looking at home brew DRO's and posted a question
(No.17790) in December. A belated thankyou to those who replied - the
same people as replied to your posting.

I spent a lot of time over the last month or so trying to find
sources of encoders in the UK at reasonable prices. I found nothing
even remotely comparable. pricewise, to those offered by
usdigital.com.

To make matters worse, I was unable to find the LS7266R1 chip in the
UK. So I shall use the scheme detailed by Art Eckstein and use the
parrallel port of an old PC.

Pity because it would have been nice to use a couple of the Mac
SE30's I have available - that is unless someone's got any ideas.

Paul Norton

--- In CAD_CAM_EDM_DRO@y..., "Neil Gillies" <neil@s...> wrote:
> Hi DROers :-)
>
> I wonder if anyone has a definitive link list of homebrew DROs
either using
> PCs/Macs/Palm or microcontrollers. Also, a CHEAP UK source of
encoders
> (about 4k steps/rev is about right for me, with 5V outputs).
>
> I have managed to find only 2 PC based DROs in my searches, I
assume that
> there _must_ be more than this in the world =:-? Even the yahoo
> CAD_CAM_EDM_DRO groups links produced squat.
>
> I'm considering designing my own around an old Palm Pilot, but I
assume that
> someone somewhere has already been there, printed the tee shirt and
done it
> (I hope :-)
>
>
> TIA
>
> Neil
>
>
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