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On 7/15/2011 6:03 PM, Roy Coates wrote:
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cite="mid:CAPe297YU5aKJYS2-RhfarvFN0JDJtTR=vC9qCG8f8fp_Z0UC-w@mail.gmail.com"
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<div class="gmail_quote">On 15 July 2011 18:50, <span dir="ltr"><<a
moz-do-not-send="true" href="mailto:dabigboy@cox.net">dabigboy@cox.net</a>></span>
wrote:<br>
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<div class="im">Ahh yes, a Traumahawk. From your instrument
description, I'm guessing you are using "hacked" servos and
potentiometers to measure the position of needles that need
more than the meager 180* or so that servos usually provide?</div>
</blockquote>
<div><br>
Correct! I'm using Phidget servo drivers to make em move, and
Bodnar boards to read the positions. <br>
<br>
</div>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt
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<div class="im"> I'm facing the same situation, but I recently
found out about winch servos that do 2, 4, or even 8 full
turns before stopping. The main problem is acquiring them,
the only small ones I found are Chinese specials (ostensibly
GWS) on ebay for around $30. If/when I can get some, this
will probably be my route. Of course for non-limited
instruments like the HSI and (sorta) the altimeter, I'll
need to use geared steppers, or just stick with my current
glass-cockpit setup for these instruments. My only "real"
instruments at the moment are the airspeed indicator and the
turn coordinator, the latter being from a real plane.<br>
</div>
</blockquote>
<div><br>
Winch servo's are fairly cheap over here if memory serves but
talking to my local RC shop guru, something he said put me off
using them. Damned if I can remember what it was though :(<br>
<br>
With free access to rapid prototyping gear though, it's
relatively painless for us to make custom stuff and the
simpler gauges like RPM, Turn/Slip, Vacuum et al will be made
in-house in ABS. I'll post pic's as they progress.<br>
<br>
Just ordered a Butt-Kicker too for some subtle 'feeling' in
the cockpit. This is in addition to a powerful sub-woofer
bolted under the seat ;-)<br>
<br>
The list so far... <br>
<br>
2 Bodnar boards (pitch/roll/yaw/throttle/trim/carb
heat/mixture/flaps/read servo pos/switches)<br>
2 Phidget servo boards (to drive instrument servos)<br>
2 Phidget Analogue-4 boards (to drive real gauges such as fuel
qty, oil temp etc)<br>
1 Phidget Interface Kit (starter engaged light/tpndr ident
light/etc)<br>
3 GoFlight panels (most cost-effective solution I could find)<br>
</div>
</div>
</blockquote>
Why dont you buy your radios from ebay?? most of them use ARINC410 2
of 5 code..<br>
(<a href="http://phoenixcomm.wordpress.com/projects/airinc-410/">http://phoenixcomm.wordpress.com/projects/airinc-410/</a>)
<blockquote
cite="mid:CAPe297YU5aKJYS2-RhfarvFN0JDJtTR=vC9qCG8f8fp_Z0UC-w@mail.gmail.com"
type="cite">
<div class="gmail_quote">
<div>
1 Bendix King KT96 (dead, gutted, lights up and Ident
button/light works)<br>
<br>
</div>
</div>
Roy.<br>
<br>
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<br>
Regards<br>
Cris H.<br>
phoenixcomm.net/phnx2000/sim<br>
phoenixcomm.wordpress.com<br>
Enjoy <br>
<br>
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