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Pinball 2000 style - Digital Pinball/Arcade hybrid project
Xiaou2:
You may wish to reconsider the bob thing a little more...
A tilt bob, is designed to react slowly to vibrations. Its only when you move in excess and or get the thing moving from many successive pushes.. that is will react.
Even if you tighten the motion down, there will still be some reactional delay, unlike a real nudge, which happens at the exact moment you make it.
This is very critical, because in order for a nudge to work best, you want the ball to be touching some surface other than the bare playfield. If the ball is touching a post... when you nudge it, the vibration will travel from the post to move the ball. If there is a delay, you might miss the nudge, or get the timing all wrong and thus the balls angle will be off.
One of the main reasons why there is a delay, is because the pivot point on the weight is too great. If you reduced the length of the metal bar that suspends the weight, the weight will move much quicker and easier.
The slam tilt switches on arcade games are probably much more related to what you want to accomplish. Obviously, they may have to be modified slightly to react a little more sensitively... but overall, they will pick up vibrations much better than the slow reacting tilt bob.
Dazz:
Xiaou2 - I have 3 tilt bobs installed in my current digital pin. I've never had any issues with the timing of the nudge. They work perfectly aside from the occasional double strike due to bounce. I think using a more focused ground point that I can adjust will keep from double striking. Using the design above I'll have 3 tilt bobs, each with only 1 strike location which I will be able to adjust to allow less or move movement required from the tilt bob. Of course I can always move the weight up and down the rod as needed if I want a faster swing.
Xiaou2:
Honestly, every virtual table Ive played had very laggy bumping. Maybe you just dont notice the lag.
Anyways, heres a pictoral example.
On the left is a swing bob. Start position = the top most drawing (red ball).
As the cabinet moves, you can see the mount (purple) slides first.. and the shaft (now green starts to move... but the weight has not yet caught up with the action. Theres a natural lag to it. (Which is what you want for low resolution push detection)
On the right, is a slam tilt style sensor.
The weight is green, attached to the leaf switch. It rests on a small bit of foam or rubber, merely to keep from making any knocking sounds. Any tap on the right side of the cabinet will travel right into the wood, to the not very absorbant foam, and push the mass to the left... which will make the two contacts (red) touch.
If all works right, the mass shouldnt react if you tap the left side of the cabinet, because the leaf is stiff, and should pull it along without any trailing. And since the weight is touching the foam, it cant be easily put into a vibrational bounce-back situation. (where the mass goes far enough left that it then slams back right into the switch)
Ive not tested this, and the mass has to be the right weight.. but I believe its a much better and quicker reacting system than a hanging bob with a slow acceleration and return speed... with much more double-bounce action.
Xiaou2:
Edit:
I believe I figured a slightly better design by a slight modification:
Invert the slam switch, so that the weight is on top, and slightly angle the switch so that it leans towards the cabinet side. This would probably give even better action and less chance of bounce-back effects.
Picture added later.
Dazz:
Interesting... that actually makes sense.
I guess it would be something long the lines of this post.
He has this installed in conjunction with a tilt bob as well.
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