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720 "Spinner Joystick"- I'll let you know

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tommyinajar:
Found this on Ebay to add to my controller collection crate-

 I Emailed him a few times mentioning this site, if he didn't know about it..

IDK if he's making more or if there are similar others, but I got mine, I'll post the results (did someone else already post it?)
if I can find my Tornado USB headder :banghead:



"720 DEGREE ARCADE CONTROLLER KNOB FOR ALTERNATE SPINNER-HAND CANDY BALL" on Ebay

bollwerk:
Is this a knob I could swap out on my TurboTwist 2?
(although I have no idea how to swap the knobs)

KenToad:
With a Turbo Twist 2 or Spintrak, the correct sensitivity settings in MAME for 720 should be 12. The big issue will be the lack of auto-calibration disc. You should be able to map the auto calibration or autocenter button if you set the machine configuration to real spinner, but unfortunately, the settings don't work very well for me because the spinner will not turn exactly 1:1 with the skater. It's close, but, if you place your finger on the edge of the spinner knob in the direction that the skater is facing, it is always out of alignment after after a few spins.

Anyway, the idea of having an angled joystick on a spinner looks cool, but I question the usability of such a thing. It's especially worrying because the guy in the video says it works well as a driving wheel or in mad planets, which it doesn't seem like it would, being almost always pointed in a different direction than the way you're facing, again because of lack of perfect 1:1 movement.

Please report back if you get the spinner joystick to work decently well. It might be worthwhile to see if you can find better settings in MAME to get the spinner to the level of precision that would require less active calibration. Maybe you can do finer adjustments in the cfg/ini files, like 11.49 for analog sensitivity.  :dunno

PL1:

--- Quote from: KenToad on February 01, 2023, 03:05:55 pm ---The big issue will be the lack of auto-calibration disc.

--- End quote ---
Very true.

For anyone who hasn't seen a real 720 controller, it has two encoder discs.
- The one on the left is the position disc.
- The one on the right is the calibration disc.



When assembled, the discs are parallel.



Every time the joystick handle passes through the 12 o'clock position, the calibration disc slots trigger the calibration.




Scott

J_K_M_A_N:
So, in theory, if the position disc was missing teeth, would the guy on the screen jump to the up position when the calibration disc hit its position? I am just wondering how it would actually calibrate if the position disc is off for whatever reason. Or does it only calibrate on a specific screen? I would think, once it knows which way it up, it would not need to calibrate again as it would be programmed for that encoder wheel. (obviously I don't really know what I am talking about or how it works)

J_K_M_A_N

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