Minigun Supergun - An Open Source Supergun

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    • New

      Really foolish question, but you turn on the device by pressing the tact switches right? Not by the slide switch? I finally built a 1.7 Standard but haven't populated a few parts yet, especially the tacts.

      I wonder if anybody has made a youtube video detailing this device or any revision.
    • New

      Solved my little problem, I used the wrong size barrel connector with the power adapter. Lights up. Now I have to construct another RGB to Component Video adapter. I've made one for my integrated MVS and it works great.

      But reading a few pages back where a user bought the RGB to VGA board makes me wish I also had one. So I should make a cable from this plug if I were to go this route?

      The post was edited 2 times, last by riderigo: More context. ().

    • New

      Taking a look at this again, I'm really sad this is in a "EasyEDA" format rather than KiCad or Eagle... I can't really modify, change, or add anything in this format...

      Though, if anyone's willing to modify to spec....?
      I'd want
      • Power adapter replaced with a 2.1mm DC barrel jack with the 12v line removed completely, only the 5v line.
      • Power switch added to the 5v line
      • Kick harness (and therefore the dip for it) removed
      • All video out components and traces removed
      • All audio out and traces removed.
      • "minigun" replaced with "_____gun" (pronounced blank-gun)
      • The form factor properly scaled with removed components to a reasonable size and to reduce cost of what is sure to be an extremely limited run.
      The _____gun supergun would be a frontend for Sega Model2 boards. I have a video cable that connects directly from a Model2 filterboard to a GBS running gbscontrol firmware, and the filterboard also has a cable with dual RCA connectors for audio out.

      Theoretically, no PCB would even need to be required to run the Model2, but it certainly would be nice to have something to distribute the 5v rail and hold the DB15 connectors in place.

      I will take a look again at EasyEDA to see if I can make these modifications myself.
      My Model2 hardware interest goes back over a decade! 08/05 - Unused character found in Sonic the Fighters | 01/06 - Memory Exploration | 01/07 - All findings published on Sonic CulT
    • New

      You do know the jamma edge is an extremely poor way to distribute +5V for a Model board?

      That just leaves the digital inputs, and again, why would you go from JST NH on the filter board to jamma to DB15?

      I'm sure someone can design a product for this purpose. However, the Minigun (and anything derived from it) isn't it.
    • New

      nem wrote:

      You do know the jamma edge is an extremely poor way to distribute +5V for a Model board?

      That just leaves the digital inputs, and again, why would you go from JST NH on the filter board to jamma to DB15?

      I'm sure someone can design a product for this purpose. However, the Minigun (and anything derived from it) isn't it.
      That's extremely unfortunate I guess. Looking at the original schematics of what an original US Model2 was powered with was some fairly thin gauge wire all crimped together on a post. The only reason I'd go from JST to JAMMA to DB15 is convince. I have the JAMMA harness already, and while I do have more JST NH connectors suitable, rigging them directly onto a DB15 breakout is less than ideal. I don't understand where I would get the GND and +5V to the DB15 that wouldn't just be a painful entanglement of cables.

      Then there's the issue of what would be the best power distribution for a Model board? Should a +5V short directly across each JST connector to daisy chain power? Or should a terminal block such as this should be used?



      I assume, ideally, an entirely new filter-board with all connectors mentioned in my previous post connecting directly to the Model board through the backplane connectors.

      However, this is a discussion for an entirely different thread, and I won't cutter up the minigun thread any further with this discussion as it belongs elsewhere. I suppose my bottom line is there really isn't a great Model2 consoleizer solution unless you rig it yourself directly through JSTs.
      My Model2 hardware interest goes back over a decade! 08/05 - Unused character found in Sonic the Fighters | 01/06 - Memory Exploration | 01/07 - All findings published on Sonic CulT

      The post was edited 1 time, last by biggestsonicfan: typo ().

    • New

      imfuraisoth wrote:

      Or some reason the 2.5 versions of these boards for super expensive on eBay. I swore I saw someone selling it for $80-$90 a few months back and now it’s at $120-$130
      I sell them on ebay for 180 AUD with a bunch of extras, if you have built one of these you would know that it takes a while, requires a lot of parts and helps to have some expensive tools like a decent iron and a hot air gun, along with good flux etc. It's a very reasonable price for all the work that goes into it and the quality of the end-product. There are other people selling them for more, probably a bunch more - and those prices are still reasonable for the work that goes in / time spent.

      I also donate a % of every sale direct to Frank. Open source creators should be rewarded.
    • New

      I'm yet to build one, but I think this project is a good one to start with after you learn the bare basics.

      You don't need the fanciest or most expensive equipment... just an average to above average soldering iron and decent solder I believe?

      I know many users have built them on here with great success and posted up pictures in this thread.
      Multis: CPS-1, CPS-2, CPS-3, F3, ST-V, MVS, M72, G-Net, Naomi, TTX2
      PVMs: 2043MD, 20M2MDA, 20L2MD
      Devices: Sentinel Gold / Ultracade uVC / JAMMAizer! / XRGB-mini
      PCBs: VAPS Profile

      The post was edited 1 time, last by djsheep ().