Modifying a Coin Door – With 3D Printing

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  • #107443
    LynnInDenver
    Participant
      @lynnindenver

      OK, so while I’m definitely a ways from being able to really start work on the lumber (we keep getting setbacks handed to us on platters here), we have been slowly acquiring pieces for a pincab.

      One of those is a three coin slot coin door.

      CoinDoorFrontCoinDoorBack

      It came from an arcade machine (my husband is pretty sure it was a Konami X-Men 6-player cab), and still had the coin counter attached. I got it cleaned up, relocated the two coin mechs to our existing pinball machine, and it sat around for a bit while we waited.

      And then my husband buys me a 3D printer for Christmas, to support my interests of “pimping” board games and scale modeling.

      So I got a wild hair to redo the intended modifications to the door using 3d printed parts, and get those old coin mech brackets out of the picture.

      Parts Used

      So the parts printed are the holder “bracket” to retain the LED and coin switch for each location (the reject pin presses against the switch), a blanking plate for the coin slot (because Suzo-Happ pretty much demands I order more than $100 of stuff or they won’t deal with me, ever) that I’d intended to just build out of sheet plastic, a bracket for the switch (which has pin holes for the switch, and screw holes in case the superglue turns out to be inadequate), and another blanking plate to go behind the coin return flap. Obviously, three of everything, as we have three slots.

      First Set Installed

      One of the benefits of replacing the entire bracket, is that the replacement hardware takes up much less space, and I don’t have to completely tear down one slot of the door to change an insert, which was required dealing with the coin mech bracket. I shaved half the depth of the bracket itself, meaning I can locate stuff much closer to the front of the cab if needed.

      Installing Light and Switch BracketCloseup With Blank Plate

      Ain’t no coins going into this coin door. I printed the holder bracket solid, and included a self-build of the coin blanking plate that Suzo-Happ sells.

      Closeup Before Switch

      Here’s where the coin switch will go on one of them.

      Switch Installation Complete

      And everything is now installed. I still need to solder in a new harness. The switches are held into their brackets with a bent “U” pin inserted from the top. It’s tight enough it shouldn’t come out, but I should be able to remove it to service. I also printed up spares of those little brackets and stored them in the drawer where I have many spare switches.

      I’ve attached my STL files for the build as well.

      Creator of the first PinupPlayer PostDMD mods for VPX - PostDMD for Masters of the Universe VPX and Jaws VPX.
      Head Proprietor of Pisces Pinball, a VPX table developer.
      Lead Technician of MC Chase Amusements, a private arcade in our home basement.

      Creator of the first PinupPlayer PostDMD mods for VPX - PostDMD for Masters of the Universe VPX and Jaws VPX.
      Head Proprietor of Pisces Pinball, a VPX table developer.
      Lead Technician of MC Chase Amusements, a private arcade in our home basement.

      1 user thanked author for this post.
      #107446
      randr
      Keymaster
        @randr

        Very cool project for sure! Don’t forget the soft switch buttons if you want to be able to easily adjust rom volume and change switch settings

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        #107451
        LynnInDenver
        Participant
          @lynnindenver

          We’ll see if we do that… there’s plenty of room to mount the switches directly to the coin door now (with double sided tape), and I could probably include a complete legend of what each button does on each “platform”.

          Note that I also have options in the future to repurpose the return slots. Print a new backside bracket with whatever I want, and boom, easy to install. With the old mech brackets, I would have had to resort to cutting discs and possibly duct tape to modify them.

          Creator of the first PinupPlayer PostDMD mods for VPX - PostDMD for Masters of the Universe VPX and Jaws VPX.
          Head Proprietor of Pisces Pinball, a VPX table developer.
          Lead Technician of MC Chase Amusements, a private arcade in our home basement.

          Creator of the first PinupPlayer PostDMD mods for VPX - PostDMD for Masters of the Universe VPX and Jaws VPX.
          Head Proprietor of Pisces Pinball, a VPX table developer.
          Lead Technician of MC Chase Amusements, a private arcade in our home basement.

          #107452
          Joseph
          Participant
            @tarrega1

            Its easier working with a key board !

            A key board can communicate with just about anything !

             

            #107468
            LynnInDenver
            Participant
              @lynnindenver

              OK, so when gluing the switch brackets, it’s possible for the superglue to “wick” up into between the bracket and the switch… and then into the switch itself, seizing up the switch mechanics. I wound up swapping two of the switches with fresh ones as this had happened. Pretty easy though; I pulled the brass rod pins, popped the switches free, and put the replacements in.

              If it wasn’t for trying to position the switches for actuation, I would have left them out during the glue-up. I’d figured the prints were tight enough it wouldn’t happen if I only put the superglue onto the tabs.

              Creator of the first PinupPlayer PostDMD mods for VPX - PostDMD for Masters of the Universe VPX and Jaws VPX.
              Head Proprietor of Pisces Pinball, a VPX table developer.
              Lead Technician of MC Chase Amusements, a private arcade in our home basement.

              Creator of the first PinupPlayer PostDMD mods for VPX - PostDMD for Masters of the Universe VPX and Jaws VPX.
              Head Proprietor of Pisces Pinball, a VPX table developer.
              Lead Technician of MC Chase Amusements, a private arcade in our home basement.

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