rec.autos.simulators

My "GPL" steering ratio fix

  Hi group,

   I have a possible steering fix for some people. I recently made my own wheel
and pedals and was unhappy with the performance in N2.(GPL was perfect for me)
I tried many things including upgrading my processer to a 233MMX. Believe me
when I say I tried lots of stuff.

The steering set to "wheel" was too harsh, and set to "Joystick/keyboard" was
too mushy.

  I finally added a balance pot to the wheel so i could pinpoint the wheel
center on the fly. This helped and i settled on a balance pot of 50k ohms.
That's half of the wheel pot 100k ohms.

  What finaly worked for me, is calibrating with the 50k balance pot giving the
wheel a 2:1 ratio. (Just cheeting by turning the wheel half diddn't work.) Then
I use the joystick/keyboard setting and setting the wheel lock much higher, it
give me the lesser center sensitivity of "Joystick/keyboard"  with the faster
curve off center like using "wheel".

  It's not hard to do this, just hard to explain. I wish I could type and write
better to explain this, If anyone has questions I could try to help.

  YMMV,     Dave

Question.

Did you add the balance pot parallell to the steeringwheel pot?

I am very curious, because I have tried that and it did not work so good
for me. The steering became unlinear. I would be very happy if you could
explain how you added the balance pot.

Best Regards
Mauritz Lindqvist

Homepage: http://w1.111.telia.com/~u11103812/index.htm

About homebuilt wheels to PC in Swedish.

Whenever I added a trim pot in series (out of one pot goes to in of
two pot) It would work for while but become increasingly unstable.  A
friend at work suggested connecting them in Parallel (in of one pot goes
to in of two pot & out of two pot goes to out of one pot, wires from
cable connect to one pot in normal config).  This method requires that
both pots be the same value as the end value will be VERY different from
the original.  With 2 x 225kohm pots the end value is 112.5 but with one
225kohm & one 50kohm the end value is 40.??kohm.  Weird techie stuff.
2nd pot would be trim of course.

   Hope this helps.  I haven't actually tried it yet as my local
supplier of pots dried up.

   Steve-S