[simpits-tech] phidgits + Building Gauges
Joseph Daigle
simpits-tech@simpits.org
Sun, 27 Oct 2002 14:14:41 -0500
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I would guess the stepper motor would be slow to catch up, but how =
responsive were the servos?
Joseph Daigle
<original>
From: "Rod Dale" <rodd@castle.net.au>
To: <simpits-tech@simpits.org>
Subject: Re: [simpits-tech] phidgits + Building Gauges
Date: Sun, 27 Oct 2002 21:16:37 -0800
Reply-To: simpits-tech@simpits.org
>Yes, that's John Dunkley at http://www.senet.com.au/~dunkleyj/menu.htm
>It's his setup that I tried. As I said it works well except for the =
speed of
>the altimeter.
>Rod
----- Original Message -----
From: Ben Jones <bjones@pipecomp.com.au>
To: <simpits-tech@simpits.org>
Sent: Saturday, October 26, 2002 6:34 PM
Subject: RE: [simpits-tech] phidgits + Building Gauges
> rod ,
> there has been a aussie who is making a 747 sim or something in =
australia
out of a ford car shell,
>
> i cant think of the site at the moment i'll have to look for it, but =
they
used a standard radio controlled servo running of a basic stamp board, =
with
a PI hanging off the shaft to report a zero point , aparently it works =
well.
>
>
> BEN JONES
> -----------------------------------------
> bjones@pipecomp.com.au
> ------------------------------------------------
>
>
> -----Original Message-----
> From: Rod Dale [mailto:rodd@castle.net.au]
> Sent: Saturday, 26 October 2002 11:35 PM
> To: simpits-tech@simpits.org
> Subject: Re: [simpits-tech] phidgits + Building Gauges
>
>
> There's a small electronic device called a Photo Interrupter (PI) that
could
> be used. This consists of an IR LED (Infra Red) on one side and a
> photo-transistor on the other. These are used in printers to indicate
where
> the carriage is. All you need to do is put a small piece of plastic on =
the
> shaft of the stepper motor and each time this plastic piece passes =
between
> the two parts of the PI it cuts the IR to the transistor and signals =
the
> controller (PC, Basic Stamp, Phidgit etc) that the motor has turned =
one
> revolution. If you could set up a counting program then you keep track =
of
> the revolutions and hence the start point and any number of other =
points
> too.
> I got hold of a heap of old printers and stripped them of these =
devices
and
> the stepper motors - ready for this sort of thing.
> Can anyone add to this theory ?
> Rod
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<DIV><FONT face=3DArial size=3D2>I would guess the stepper motor =
would be slow=20
to catch up, but how responsive were the servos?</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=3DArial size=3D2>Joseph Daigle</FONT></DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV><FONT face=3DArial size=3D2><original></FONT></DIV>
<DIV><FONT face=3DArial size=3D2>From: "Rod Dale" <<A=20
href=3D"mailto:rodd@castle.net.au">rodd@castle.net.au</A>><BR>To: =
<<A=20
href=3D"mailto:simpits-tech@simpits.org">simpits-tech@simpits.org</A>>=
<BR>Subject:=20
Re: [simpits-tech] phidgits + Building Gauges<BR>Date: Sun, 27 Oct 2002 =
21:16:37=20
-0800<BR>Reply-To: <A=20
href=3D"mailto:simpits-tech@simpits.org">simpits-tech@simpits.org</A><BR>=
<BR>>Yes,=20
that's John Dunkley at <A=20
href=3D"http://www.senet.com.au/~dunkleyj/menu.htm">http://www.senet.com.=
au/~dunkleyj/menu.htm</A><BR>>It's=20
his setup that I tried. As I said it works well except for the speed=20
of<BR>>the altimeter.<BR>>Rod<BR><BR>----- Original Message =
-----<BR>From:=20
Ben Jones <<A=20
href=3D"mailto:bjones@pipecomp.com.au">bjones@pipecomp.com.au</A>><BR>=
To:=20
<<A=20
href=3D"mailto:simpits-tech@simpits.org">simpits-tech@simpits.org</A>>=
<BR>Sent:=20
Saturday, October 26, 2002 6:34 PM<BR>Subject: RE: [simpits-tech] =
phidgits +=20
Building Gauges<BR><BR><BR>> rod ,<BR>> there has been a aussie =
who is=20
making a 747 sim or something in australia<BR>out of a ford car=20
shell,<BR>><BR>> i cant think of the site at the moment i'll have =
to look=20
for it, but they<BR>used a standard radio controlled servo running of a =
basic=20
stamp board, with<BR>a PI hanging off the shaft to report a zero point , =
aparently it works well.<BR>><BR>><BR>> BEN =
JONES<BR>>=20
-----------------------------------------<BR>> <A=20
href=3D"mailto:bjones@pipecomp.com.au">bjones@pipecomp.com.au</A><BR>>=
=20
------------------------------------------------<BR>><BR>><BR>> =
-----Original Message-----<BR>> From: Rod Dale [<A=20
href=3D"mailto:rodd@castle.net.au">mailto:rodd@castle.net.au</A>]<BR>>=
Sent:=20
Saturday, 26 October 2002 11:35 PM<BR>> To: <A=20
href=3D"mailto:simpits-tech@simpits.org">simpits-tech@simpits.org</A><BR>=
>=20
Subject: Re: [simpits-tech] phidgits + Building =
Gauges<BR>><BR>><BR>>=20
There's a small electronic device called a Photo Interrupter (PI)=20
that<BR>could<BR>> be used. This consists of an IR LED (Infra Red) on =
one=20
side and a<BR>> photo-transistor on the other. These are used in =
printers to=20
indicate<BR>where<BR>> the carriage is. All you need to do is put a =
small=20
piece of plastic on the<BR>> shaft of the stepper motor and each time =
this=20
plastic piece passes between<BR>> the two parts of the PI it cuts the =
IR to=20
the transistor and signals the<BR>> controller (PC, Basic Stamp, =
Phidgit etc)=20
that the motor has turned one<BR>> revolution. If you could set up a =
counting=20
program then you keep track of<BR>> the revolutions and hence the =
start point=20
and any number of other points<BR>> too.<BR>> I got hold of a heap =
of old=20
printers and stripped them of these devices<BR>and<BR>> the stepper =
motors -=20
ready for this sort of thing.<BR>> Can anyone add to this theory =
?<BR>>=20
Rod</FONT></DIV></BODY></HTML>
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