[simpits-tech] Force Feedback
Keenan Akin
simpits-tech@simpits.org
Fri, 24 Jan 2003 20:31:21 -0600
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Craig,
Tell me more about these transducers. If you vary the input voltage,
the outlet pressure varies proportionately?
Keenan
Craig Rochester wrote:
> No I haven't built it yet...but I think it's a great idea!
>
> For a prop fighter, I'd like to simulate something close to the real
> forces from the stick and rudder. So much of the experience of flying
> a pre fly-by-wire plane would be the physical part of pushing back on
> the forces from the control surfaces. I've read these forces are 100's
> of pounds during heavy maneuvering. I've thought that a real
> force-feedback system where stick and rudder forces are reproduced
> would be a tremendous improvement in immersion and SA. You could get
> an aerobic workout while dogfighting. :)
>
> I have worked on the pneumatics that could drive such a rig. I'd use
> electronic pressure regulators("I/P" or E/P transducers) I've bought
> them on eBay for as little as $10:
> http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3308016001&category=11806
> <http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3308016001&category=11806>
>
>
> I've also modified a standard regulator to work with a R/C servo and
> phidget. I send a proportional signal(voltag or PWM) to the regulator
> and drive a pneumatic cylinder with the regulated pressure. The
> beauty of the regulator is that it maintains a constant pressure
> regardless of the cylinder motion: i.e.. when you push back the
> regulator relieves the increased pressure due to the stroke. It feels
> very natural.
>
> You'd only need 3 sets for stick(x & y axes) and rudder(1 with
> switching valve).
>
> Craig R.
>
>
> -----Original Message-----
> From: simpits-tech-admin@simpits.org
> [mailto:simpits-tech-admin@simpits.org ]On Behalf Of Akin, Keenan L
> Sent: Thursday, January 23, 2003 2:28 PM
> To: SIMPITS
> Subject: [simpits-tech] Force Feedback
>
>
> Has anyone tried building their own force feedback actuators to use
> with FF supported sims?
>
> Keenan
> _______________________________________________
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> Simpits-tech@simpits.org
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> page. Thanks!
>
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Craig,<br>
<br>
Tell me more about these transducers. If you vary the input voltage, the
outlet pressure varies proportionately? <br>
<br>
Keenan<br>
<br>
<br>
Craig Rochester wrote:<br>
<blockquote type="cite" cite="mid:000d01c2c336$b72a05b0$0100a8c0@main">
<title></title>
<meta content="MSHTML 6.00.2800.1126" name="GENERATOR">
<p><font size="2">No I haven't built it yet...but I think it's a great
idea! <br>
<br>
For a prop fighter, I'd like to simulate something close to the real forces
from the stick and rudder. So much of the experience of flying a pre fly-by-wire
plane would be the physical part of pushing back on the forces from the
control surfaces. I've read these forces are 100's of pounds during heavy
maneuvering. I've thought that a real force-feedback system where stick
and rudder forces are reproduced would be a tremendous improvement in immersion
and SA. You could get an aerobic workout while dogfighting. :)<br>
<br>
I have worked on the pneumatics that could drive such a rig. I'd use electronic
pressure regulators("I/P" or E/P transducers) I've bought them on eBay for
as little as $10:<br>
<a href="http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3308016001&category=11806" target="_blank">
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3308016001&category=11806</a>
<br>
<br>
I've also modified a standard regulator to work with a R/C servo and phidget.
I send a proportional signal(voltag or PWM) to the regulator and drive a
pneumatic cylinder with the regulated pressure. The beauty of the regulator
is that it maintains a constant pressure regardless of the cylinder motion:
i.e.. when you push back the regulator relieves the increased pressure due
to the stroke. It feels very natural.<br>
<br>
You'd only need 3 sets for stick(x & y axes) and rudder(1 with switching
valve).<br>
<br>
Craig R.<br>
<br>
<br>
-----Original Message-----<br>
From: <a class="moz-txt-link-abbreviated" href="mailto:simpits-tech-admin@simpits.org">simpits-tech-admin@simpits.org</a><br>
[<a href="mailto:simpits-tech-admin@simpits.org" target="_blank">mailto:simpits-tech-admin@simpits.org</a>
]On Behalf Of Akin, Keenan L<br>
Sent: Thursday, January 23, 2003 2:28 PM<br>
To: SIMPITS<br>
Subject: [simpits-tech] Force Feedback<br>
<br>
<br>
Has anyone tried building their own force feedback actuators to use with
FF supported sims?<br>
<br>
Keenan<br>
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Thanks!<br>
</font></p>
</blockquote>
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