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Nice newbie question

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MTPPC:


--- Quote from: moknitro on May 10, 2012, 07:33:16 pm ---I'm planning on starting my first Arcade control by converting a Logitech PC controller. I'll try and keep my questions to this thread as I'm sure more will arise the further I go into it. I've checked out the site and done a fair bit of research too.

First newbie question...

What size spade bit would I use for 30mm nutted Sanwa buttons? Is the 30mm an overall diameter or the size hole I need? I'd just measure it, but I'm waiting on buttons to turn up first and want to get the spade bits on the way too.

--- End quote ---
1-1/8"

moknitro:

Good thing I haven't drilled yet then!

CoryBee:

Yea I use the 1 1/8th bit too.

And not those are the shoulder buttons. The silver pads I speak of are the ones next to the maze like contact.

Here: (don't mind the saw dust)


"Button" contact plus the common GROUND equals a button press on the gamepad. Pretty simple if you have basic electronics background.



The "GROUND" connection can be anywhere on the board to solder from.

The daisy chain the ground connection to all the button switches.



Here shows only the ground connected to all button switches.




And then here is that with all the "button" contacts soldered on.



I always use terminal strips to connect everything just in case I need to change something.









moknitro:

Yeah I understand the button/ground logic. I got a piece of wire and tested the buttons and that worked. So at least I know the controller works. Got a set of digital vernier calipers onto the buttons and it appears a 28mm (1-1/8) should be right for a 30mm button. I'm in Australia so metric is more familiar.

CoryBee:

Hope your build turns out well.

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