Re: [CAD_CAM_EDM_DRO] Looking for scale interprolator circut

Trevor

Not a great cheap issue , sorry , I had the same problem
with 2 glass linear scales from heidenhain + the need for
an extra Z.
I found a used Metrologic DRO wich work with sinus scales
and send the data through the RS232 to the pc (configured as terminal)
Metrologic today ,are more interested with the laser barecode devices ,and
it could be an idea to contact and ask for an "old" used unit sinus
compatible ?
(CMM =MMT in french)
Check for Metrologic group , MMT and directly to a technician.
They send me the connectors data , the setting , and the protocole
description !
(a setting for signal multiplier is included)

2/check Ebay for a heidenhain dro , more common ,(I found my Z for 220
Euros.)

3/Heidehain provide also some converting magic box (Ebay ?)

4/ checking the sinus dro input (for to act as you) , I found the trick but
,to
cut all the analogic input part ,shorting the hooking and connect directly
to
the appropriate CI pins was too tiedous (but possible !)

I suspect (maybe I'm wrong) you plan to hook your sin rulers to Mach2/3 ,
as me , I suggest an other issue , keep your rulers as original and through
a dro interface , send the datas when the rs232 input protocole will be
fully enabled ..?

thierry

----- Original Message -----
From: "protman16" <protman16@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Tuesday, September 06, 2005 7:54 PM
Subject: [CAD_CAM_EDM_DRO] Looking for scale interprolator circut


> Group,
>
> Does anyone have information where I can find an interpolation
> circuit
> for converting a sine-cosine linear scale signal to square wave
> quadrature signal?
> Ideally the circuit would also have selectable multiplier for the
> output.
>
> Trevor
>
>
>
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