[simpits-tech] True Force Sensitive F-16 Stick

[Sukit, Sittisudjatum]

Marv,

I'm wondering if you still have this project somewhere on your workbench!  I
remembered once we had the explanation how the stick work using strain
gauge.  I and my members visited the F-16 squadron last 2 weeks
(unfortunately, they didn't open the canopy ... cause they didn't want us to
fly the viper away), we had so many topics exchanged with the viper drivers.
Then the force sensing stick came to my interest again.

He said that 'Once you think you want to roll the bird to the right, the
bird rolls right !!!'  man... I want to get my Cougar out of the box (yeah,
the cougar still sleeping in the its box) while having the force sensitive
(internal assembly) mod kit (e.g. the base with adaptor) ready for that
feeling!!!

I tried to find more information on the strain gauges.. and found some from
www.howstuffwork.com which lead me to some other sites.  Those sites are
more likely provide online catalogs, not really giving a 'how to' stuff.
Then I imagined that it has to be at least four strain gauges placed on the
opposite side of the X and Y axis. A small software and interfacing needs to
be done to compare outputs from the two gauges of one axis.. convert into
something that sending signal 0-255 for the joystick game port. A software
will compare outputs and fine tuning for 'null zone' when no force applied
(but some 'errors' caused by yield or pre-stress force need to be considered
and calibrated).  Do we need the gauges installed in a bridged circuit?  I
don't really know.

I'm not form the electronic or control school... this is all I know.. it's
all my guess.

Sukit Sittisudjatum
Bangkok, Thailand
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Thanks!