This is the first I ever tried something like this.. It came out good although it lacks a speaker and I had issues with it so I went without it you can use usb headphones or the 3.5mm jack or Bluetooth. Besides that simple straight forward project recalbox and retropie lack trigger buttons for the gpio wiring and I didn't feel like remapping player 2 so if you wonder why two holes are on the back they are for buttons I didn't add in and a button to toggle the speaker...
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Any way the files and parts are down below feel free to modify them as you wish but give me some credit if possible.
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Protoboard 9cm by 15cm demensions " https://www.ebay.com/itm/363385925606... "
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TacSwitches " https://www.ebay.com/itm/193856277903 "
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Battery Stuff!!!!
UPS Lipo Charge Boost Circuit Does Output More Current No Yellow Bolts.. " https://www.ebay.com/itm/272716729032... "
Alternate Lipo Charge Boost Circuit Not As Good But Blinks When Battery Is Low And Is Simple To Move And Wire The Leds To The Protoboard " https://www.ebay.com/itm/264764531028... "
4000mah Battery Could Use Smaller Or Larger Battery If You Want Mathematically Can Run The Pi 3 Roughly 7.3 Hours Or So Haven't Tried To Test That " https://www.ebay.com/itm/273719210579 "
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The 3D Printable Files
https://drive.google.com/file/d/1tH5S...
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Please note I have spaces to fit perfectly in the indent's but I also got smaller ones easier to use and less chance to mess up with the measuring and drilling I used those in my build...
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