[simpits-tech] F-111 update

Rod Dale simpits-tech@simpits.org
Mon, 14 Apr 2003 08:21:18 +1000


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MessageHi Chris,

>Hey Rod, looking really great!

Thanks :-)

>tell us..... there is often much talk about servo gauges are too =
jittery to be useful. >Do you find this? or do you find that since your =
not really concentrating on them >alot that they are just fine?

No, there's no jitter at all, at least not on the servos driven by the =
DSC's. I have the rate set at 200 - 250mSecs and this gives a nice even =
update speed for the needles. They always return to the same positions =
too. The RPM gauges have a bit of play in them, this is due to gears =
that have larger teeth. The others use finer toothed gears (from old =
printers) and have no play at all. I'm going to change the RPM gears to =
finer ones.
The servos driven from the Epic Gauge module via the 555 timer circuit =
(diagram uploaded a while back) tend to jitter a little. There the ones =
I'm using for the Fuel indicators. It's not too bad though - something I =
can put up with.
Rod

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<META content=3D"text/html; charset=3DWindows-1252" =
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<DIV><FONT face=3DArial size=3D2><SPAN class=3D529395020-13042003><FONT =
face=3DArial=20
size=3D2>Hi Chris,</FONT></SPAN></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><SPAN=20
class=3D529395020-13042003></SPAN></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2><SPAN class=3D529395020-13042003><FONT =
color=3D#0000ff=20
face=3DArial size=3D2>&gt;Hey Rod, looking really =
great!</FONT></SPAN></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><SPAN=20
class=3D529395020-13042003></SPAN></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2><SPAN class=3D529395020-13042003>Thanks =

:-)</SPAN></FONT></DIV>
<DIV><FONT color=3D#0000ff><SPAN=20
class=3D529395020-13042003></SPAN></FONT>&nbsp;</DIV>
<DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN =
class=3D529395020-13042003>
<DIV><SPAN class=3D529395020-13042003><FONT color=3D#0000ff face=3DArial =

size=3D2>&gt;tell us..... there is often much talk about&nbsp;servo =
gauges are too=20
jittery to be useful. &gt;Do you find this? or do you find that since =
your not=20
really concentrating on them &gt;alot that they are just=20
fine?</FONT></SPAN></DIV>
<DIV><SPAN class=3D529395020-13042003></SPAN>&nbsp;</DIV>
<DIV><FONT color=3D#000000>No, there's no jitter at all, at least not on =
the=20
servos driven by the DSC's. I have the rate set at 200 - 250mSecs and =
this gives=20
a nice even update speed for the needles. They always return to the same =

positions too. The RPM gauges have a bit of play in them, this is due to =
gears=20
that have larger teeth. The others use finer toothed gears (from old =
printers)=20
and have no play at all. I'm going to change the RPM gears to finer=20
ones.</FONT></DIV>
<DIV><FONT color=3D#000000>The servos driven from the Epic Gauge module =
via the=20
555 timer circuit (diagram uploaded a while back) tend to jitter a =
little. There=20
the ones I'm using for the Fuel indicators. It's not too bad though - =
something=20
I can put up with.</FONT></DIV>
<DIV><FONT =
color=3D#000000>Rod</FONT></DIV></SPAN></FONT></DIV></BODY></HTML>

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