<div class="gmail_quote">On 15 July 2011 18:50, <span dir="ltr"><<a href="mailto:dabigboy@cox.net">dabigboy@cox.net</a>></span> wrote:<br><div> </div><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<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 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<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>
1 Bendix King KT96 (dead, gutted, lights up and Ident button/light works)<br><br></div></div>Roy.<br><br><div style="visibility: hidden; left: -5000px; position: absolute; z-index: 9999; padding: 0px; margin-left: 0px; margin-top: 0px; overflow: hidden; word-wrap: break-word; color: black; font-size: 10px; text-align: left; line-height: 130%;" id="avg_ls_inline_popup">
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