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New PC's FFB



 
 
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Old May 27th 12, 10:45 PM posted to rec.autos.simulators
Mario Petrinovic
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Posts: 253
Default New PC's FFB

Mario Petrinovic:
Mario Petrinovic:
Mario Petrinovic:
Mario Petrinovic:
Mario Petrinovic:
BTW, fimaly I figured out about Centering Spring. It should be at
the same value as Overall. I didn't find it before because they both have to
be at the precise value, otherwise there is no benefit of them being the
same. Thankfully, my last Overall was at close value, so I tested around it.
My last Overall was 109% (the settings were 109/100/100/100), and the value
where they both have to be is 108% (so, "the right" settings are
108/100/100/108). With these new settings I was the first in fixed setup
sessions that I drove today, and even did my personal best without much
trouble. I aldo tried some non-default (non-100%) Spring and Damper
settings, but these were not good. I tried to lower in-game (by the same
percentage moving both, force and damper), and this is good only if you
lower (from maximum) it by little.
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Ok, this was wrong. It looks like the old formula is still working.
The formula is:
Overall x Spring/Damper = Centering Spring.
This means that with 108/100/100/108 I couldn't lower Spring/Damper
because 1.08 (CS) / 1.08 (O) = 1.00 (S/D).
But, I found out that 108/100/100/108 works well because Overall
should be 108 on my system, but Centering Spring is best to be kept at 100.
So, now I am using 108/93/93/100, because 1.00 (CS) / 1.08 (O) = 0.93 (S/D).
Also, FOV was wrong (again, so easy to measure it, yet it is always
wrong, lol), and now I say that the distance from eyes to the edge of table
is 35 cm.
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Ok, this was also wrong.
It looks like FFB now on my system works like it should.
First of all, you balance FFB by the way of Centering Spring.
Then, you adjust Damper/Spring and Overall to your liking, and then
you rebalance FFB with Centering Spring. Easy, and it works like it should.
Future days I will see if Damper and Spring have to be at the same
value. Also, I'll see if you can balance wrong FOV with Centering Spring.
BTW, it is advisable to first put Damper/Spring somewhere where you
like, because it is hard to set Centering Spring if Damper/Spring are too
high (100% is too high on my system, 97% works alright).
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Ok, forget Centering Spring, this should be at 100%. I am still
testing Damper/Spring position. 100% is too high, 93% is too low, so its
somewhere in-between, : ). 94% looks good, but I still didn't test 95-99%.
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Ok, it is the other way around, forget Damper/Springs (they should
be at 100%), and get rid of slack by the way of Centering Spring. At 139% of
Centering Spring I got rid of slack.
Interestingly, the 139 number I liked in the past, on my old
computer, and at that time I probably didn't have natural FOV. So, it looks
like it isn't system specific, but rather wheel (I still use that old
wheel), or possibly human specific.
So, today I am using 118/100/100/139.
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Ok, at 139% of Centering Spring I got rid of slack, which helped me
to determine the correct screen height. With slack this is a problem, since
incorrect screen hight brings its own slack, too. Actually, you determine
the correct screen height by getting rid of slack.
But, when I determined correct screen height, it turned out that the
correct value for Centering Spring should be 100%. This brought back some
slack, but car drives well. I'll see if I can get rid of this remeining
slack, or is this because of latency and you cannot rid of it.

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