[simpits-tech] Simulating g

[Simon Kelsey]

Justin,

If you're going to use a mechanical linkage.... might I suggest linking it
to a variable resistor or similar setup, similar to an RC car speed
controller (except somewhat larger <G>). That way you can control the speed
of the motor.

Another method might be to have the rod (damn I hate trying to explain this
in words... much easier with a diagram, but will try my best) connected to a
contact which will switch on as you pull back the first inch or so, then off
as you continue pulling back, then on again, and so on for as many steps as
you need.

Probably method 2 would be best for what you need; that way the motor will
pull, stop, then maintain that tension if you can put a brake on it (and
probably will anyway depending on how beefy the motor is), then if further
back pressure is maintained, tighten... and so on.

Hope this helps,

Simon

----- Original Message -----
From: "Justin Messenger" <jjmessenger@yahoo.com>
To: <Simpits-tech@simpits.org>
Sent: Tuesday, October 08, 2002 7:51 PM
Subject: [simpits-tech] Simulating g


> Here's the deal, I am going to have cadets use my sim
> and know using a g suit is not practical so I want to
> simply cause the shoulder harness to tighten when the
> stick is pulled aft. I need tips to use a motor to
> gradually increase the pull as the stick is pulled
> back past the center position, How do I get a 12V DC
> motor to slowly increase tension? For now it will
> simply be a mechanical interface from the stick to the
> motor. I have a rod running from my stick under the
> seat to the rear of the pit, so I can hook the motor
> to the rod for joystick input, Is there some kind of
> pot I can use to control the motor? What should it be
> rated?  Also, where would be a good motor for this
> use?
>
> Justin
>
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