Build Your Own Arcade Controls Forum
Main => Main Forum => Topic started by: stephenp1983 on July 02, 2007, 10:18:19 pm
-
Will it matter than the wiring is hanging a little over on the quick disconnect on my ground wire like in the picture?
(http://i78.photobucket.com/albums/j81/stephenp1983/Bartop/picture17.jpg)
-
not a problem.
-
OMG !!
You're gonna have to strip the entire cabinet out and start over now.
Seriously...... NO..... there's nothing wrong with that.
(unless you are just anal about perfection or something)
-
Nope definately not a perfections thats for the info guys.
-
Just curious what is the purpose of the ground wire? What would happen if it wasn't daisy chained to all the buttons anyway?
-
purpose..... um, to make it work..... :laugh2:
Most people actually do daisy chain them all together.
With two leads, one from each end of the chain, going back to your ground.
-
The ground wire is sort of the return wire for the signals. I am oversimplifying and probably slightly misleading, but what happens is that the micro switch connects the two wires when you press the button, the encoder senses that the wire for "button x" has been grounded and acts accordingly. You could play your games by just touching the wire for the button you want to press to the ground terminal on the encoder instead of all this messy button stuff, but that would be a little unwieldy. Somebody may chime in with a little more technical answer, but while I understand what it all does, I don't necessarily get how it all does it. The reason that you daisy chain is that it is a lot less work than running a ground wire all the way to each switch.
-
Thanks for the answers I knew you had to do it for everything to work. I just wanted a technically answer explaining it :)
-
Another advantage to daisy-chaining, if you loop both ends of the chain back to ground, is that if any 1 wire/connection fails, everything beyond it still has a path to ground and all your components still work.
-
I like to have a little of the wire sticking out. This makes sure that the wire is fully in the barrell when you crimp it.
-
That's a little more than you usually want sticking out but having a bit past the crimp is the most secure way to go about it. Given that it the connector doesn't have a shield, the excess isn't long enough to create a short that the connector wouldn't already being making.
-
I Daisy-Chained my ground connections for two purposes, it's faster and you end up using less wire. It's not the more reliable type of connection though. Each button with its own ground wire would be a lot more reliable but then you need to have extra connection points for each ground wire and the I-Pac only comes with 2 ground pins. So I daisy chained and made it loop back to ground so incase one connector fails and has an open circuit it will still work going the other way. Not sure if you understand the technicality of that but it kind of means the ground wire connects back to itself on both ends of the wire.