Help me Build a Demon

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  • Maxwell
    Phantom
    • Oct 2025
    • 377
    • U.P.

    #1

    Help me Build a Demon


    For obvious reasons I need to make my X-Valved Mag shoot as fast as humanly possible. I found a comment in a different thread where a member said the RT effect comes down to o-rings being broken in, On/off pin length, air input pressure, bolt type, bolt spring type, and trigger frame geometry.

    I've got some broken in o-rings in the marker, a level 7 I can toss on with a fresh spring, and a regulator that can be adjusted to 900-1100psi. ​I also have a spare on/off pin. The main purpose of this thread is to ask if I'm going the right way about achieving this and how to properly trim down the on/off pin. Just sand it down on a belt sander little by little and keep testing a retesting it? I worry about flying to close to the sun in my quest for maximum performance and making it too short. Currently it won't RT at any input pressure.
    ​
  • Pyrate Jim
    Shi Tamajutsu Ka
    • Aug 2020
    • 688
    • The Group W bench

    #2
    Click image for larger version

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    Comment


    • Maxwell
      Maxwell commented
      Editing a comment
      Lol I just looked up a video of one of these in action. Not sure I'll be able to find one though.
  • BLachance75
    Administrator
    • Jul 2020
    • 1116
    • Western MA

    #3
    You can buy pins from AGD
    Red One

    Comment


    • Maxwell
      Maxwell commented
      Editing a comment
      I see a .750. Is sanding one down not a good idea?

    • BLachance75
      BLachance75 commented
      Editing a comment
      Yeah you can sand it. Go slow, it doesn’t take much

    • Maxwell
      Maxwell commented
      Editing a comment
      Awesome, thank you.
  • oats944
    Bunker Buster
    • Jan 2022
    • 260
    • Ewing NJ

    #4
    I second going slow with sanding the pins. I went slow knowing it doesn’t take much and I still almost took off too much.

    Not sure what asa you’re running but my RT wouldn’t RT at any pressure either. At the time I was using an older Taso I believe drop forward on/off combo deal. I swapped it out for a new CP on/off and it RT’d immediately.

    Comment


    • Maxwell
      Maxwell commented
      Editing a comment
      Interesting, I'll swap a few out and see if that changes anything.
  • Olsson
    The Swedish Chef
    • Jul 2020
    • 678
    • Gothenburg, Sweden

    #5
    Provided you have an RT-valve that can actually RT at good speeds, what you additionally want for this kind of shenanigans is a pneuframe.
    Let me assure you that it is utterly hilarious to match the pressure for the pneuframe to the pressure of the RT-valve. Basically you can simply use the LPR on the pneuframe to dial the rate of full auto you desire.

    You'll giggle like a little school girl, when you get that reliable, super high full auto chugging along as you hold the trigger. At least I do. For yet more shits and giggles, every now and again I have turned on the high BPS full auto in the staging area, let go of a couple of bursts of air, in order to hear some confused ref yell "NO ELECTROS" when he was sure he hadn't seen a single electro.

    Fun times.​
    Got Bork?

    Olsson's WTB - Shut up and take my money!

    Comment


    • Maxwell
      Maxwell commented
      Editing a comment
      I just have an X-Valve. I'm guessing not all valves are created equal in the world of RT effects.

      A pneuframe is probably outside the scope of this operation, but that does sound like exactly what I'm looking for. I'm expecting a bunch of old shockers and DMs with cheater boards to show up and would love to show up with an equally capable mech.

    • Olsson
      Olsson commented
      Editing a comment
      An X-valve has the same internal architecture as an RT-valve - that is the RT-valves that has the same air inlet on the side of the valve. So the X-valve should be able to RT just as good. However, most people agree that it can vary from valve to valve, just as you mention.

      Well, keep the pneuframe idea on the back burner. If you ever acquire one, do try it out in this hilarious configuration.

    • Maxwell
      Maxwell commented
      Editing a comment
      Will do, and will definitely share the madness that ensues. Thanks for the tip!
  • flyweightnate
    MCB Member
    • Jul 2020
    • 1905
    • Dallas, TX

    #6
    Maxwell's Demon... I like it.
    Feedback
    www.PhrameworkDesigns.com < Nelspot, Sterling, and Phantom parts, plus the occasional big project.

    Comment

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