BoomCo MA5B Modification and LED kit

Discussion in 'Halo Costumes and Armor' started by Badkitty, Jan 7, 2019.

  1. Badkitty

    Badkitty Member

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    Hey guys!!!

    So I bought the BoomCo AR MA5B from amazon and when I got it, well, it was so bright orange it burned my retina's!! No I'm just kidding but at the time I was surprised how brightly colored it was, really I opened the box and my jaw hit the floor.

    BEWARE LOTS OF DETAILED PICTURES HERE!!!

    I couldn't have this like it was, so I decided to modify it, A LOT! I took it apart, removed most of the moving parts and primered it first.

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    So after I primered it I started with cutting away the display area to put in an ammo counter led display and plastic window to make it look like it does in the game.

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    Here it is with the display on:

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    And the display is off here:

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    So the ammo counter came with a little plastic hold thing that I had to modify to get it to fit into the opening but hey that's ok since the 3D printed material was fairly easy to cut away to get it where it needed to be.

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    My BoomCo gun didn't work when I received it so I took out just about everything that could be removed in order to get all the battery packs, wiring, and switches to fit inside the weapon.

    The little flippy door seen here near the top of this picture makes the perfect place for the switches to all end up so I can get to them easily and you never know they were there!

    Oh before I forget, this is the guide I used for this build:

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    I used page 304- 305 as seen here.

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    Now for the LED's. I bought mine from superbrightleds.com. I bought green 360' viewing angle 5mm, Blue in the same type and Aqua in the same type. I also bought a 100 pack of the 1200 OHM resistors for this build along with a huge pack of 9V duracell batteries and bulk 12 gauge automotive grade wire.

    So Bad Kitty why is it that we need to put a resistor in line between the power source and the LED (light emitting diode)?

    What happens if you don't?

    Simple my friends, let's take a look at our favorite friend electricity. As you know it plays a major role in our day to day lives but do you understand how it actually works? I will make it was simple as I can here. Electricity travels from a power source such as a positive terminal of a battery (DC- direct current system) through a circuit to a ground (the negative side of the battery) to move the electrons around. This creates electromotive action and makes the LED turn on. So you have electrons flowing to and from if you take away the source or the ground the light goes out, so what actually happens here is the motion is from the negative to the positive. I know it sounds crazy but that's how it actually moves, even though you can't see it.

    Now back to resistance, why do I need this, if from what I just said thew light comes on no big deal there it is and I'm done right? WRONG!!!!

    NEVER EVER put a LED to a battery source WITHOUT A RESISTOR inline unless it's designed that way. It will pop and you will have no longer have an LED. See an LED is a light emitting diode, and I'm sure you have heard this alot too but what that translates to is this......

    A diode only lets electrons flow in ONE DIRECTION so if you hook it up WRONG- POP GOES YOUR DIODE or nothing happens if your lucky. Diodes are very fragile and if you put TOO much power to them they will literally burn up, and not enough power they will not be as bright as you would like.

    So you can put up to 2 LEDS with 1 RESISTOR rated at 1200 OHM's, if you put a lesser resistor like 1000 OHM's it might not pop right away but I did a lot of testing and found that they only lasted about 30 minutes before they popped. 1200 OHMs coupled with a 9v battery seems to work the best. It will save a lot of time and money if you want to do it this way. You could also put it one to one if you wanted but if you don't have the room or the money, well the two to one might be your best bet.

    Here are some pictures of my stuff the check out:

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    Sadly I need to get the switches for the green led's in the side of the gun before I put a picture here for you but I will soon.

    Also here is the ammo counter pic:

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    Here is where you can get yours:
    AmmoCounter V3 Kit For Foam Darts

    I also wanted to make the flashlight on the front of the gun work, so I took a mini mag light and put it inside of the pump piece of the weapon as seen here.

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    I had to do a ton of cutting to get it in there right but it looks pretty good right now and when its all done I think it will add a nice touch to it.

    Well that's all for now and maybe next time you will get to see the green led's on the sides of it working and the BoomCo Magnum build I have started as well!!

    Thanks for looking everybody and have a great day!!!!!
     
  2. Dirtdives

    Dirtdives Keeper of Con Lists Community Staff

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    Dam, that looks great. Now I want one to!!!!
     
  3. Badkitty

    Badkitty Member

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    So I didn't follow my own advice and I popped one of my LED's yesterday when I was playing with the new switch I brought. So I redact part of what I said about using one resistor for 2 LED's. DON'T DO IT! I guess the single resistor can't handle that kind of voltage after all.

    Thank you Dirt, hopefully it will look even better after I'm done!!
     
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  4. TurboCharizard

    TurboCharizard RMO & BCO 405th Regiment Officer Community Staff

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    That all depends on what values you're using. If you're using a 9V source, 2 blue 5mm LEDs (3.2V forward voltage, 20mA) all you need is a single 150 ohm resistor to keep things in check. If you go with a lower resistor value the LEDs will start off brighter and as the battery follows it's voltage curve it'll dim.

    Did you possibly have a short or have one of the LEDs reversed to pop it?
     
  5. Dirtdives

    Dirtdives Keeper of Con Lists Community Staff

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    And you just gave your lecture on the need for resistors Badkitty............what happened?
     
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  6. Badkitty

    Badkitty Member

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    No I don't think so. I might have had the resistor turned the wrong way since these are polarity sensitive, I really don't know. :confused::confused::cry::cry::cry:
    It's okay though I ordered some more.(y)(y)
    I will have to play with these on a bread board and see what the hell I did wrong. Anything is possible.
     
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  7. Badkitty

    Badkitty Member

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    I wish I knew. But I probably hooked it up wrong, oh well it's all good. We make a mistake, learn from that mistake and continue on!
     
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  8. zachturner009

    zachturner009 Member

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    Actually little curious, how big is that rifle? Is it full size or like a carbine, or kiddo size?
     
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  9. xXDashIVXx

    xXDashIVXx Active Member

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    That's what I was thinking. I really want to do a mod with all boomco props but they all seem small but the magnum, especially the shotgun!
     
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  10. TurboCharizard

    TurboCharizard RMO & BCO 405th Regiment Officer Community Staff

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    Standard resistors are non-polar so I'm not convinced that those are the issue. Are you using a potentiometer or a photoresistor? Those are the only common resistor types that have a possible polarity or mixed up pinout.
     
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  11. Dirtdives

    Dirtdives Keeper of Con Lists Community Staff

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    It's a Boomco kid size rifle....
     
  12. zachturner009

    zachturner009 Member

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    Lame
     
  13. xXDashIVXx

    xXDashIVXx Active Member

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    But we "adults" want to have fun too!
     
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  14. Badkitty

    Badkitty Member

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    Oh no I'm sorry to confuse you, I think I might have gotten the LED in reversed. The LED's I am using are polarity sensitive but I don't think that the resistors are. But while we are on the subject.. yes some resistors are polarity sensitive so you have to be careful when you buy them. They are sometimes referred to as mother or father resistors but that name also comes in to where they are located within the circuit too. When you start going that far into it can very complicated and the math can vary depending on what your end goal is going to be.

    I hope that helps some.:)
     
  15. Badkitty

    Badkitty Member

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    What do you mean lame?

    Come on now, we "adult" humans, can take this little kiddy toy gun thing and make it so much better then what it started out as. Sure the weapon is smaller, about 6 inches shorter to be exact, but that isn't going to stop me from stretching it out and giving it some height to make was good as it can be. The overall size at finish should be 34.5" or at least close to it.
     
  16. Badkitty

    Badkitty Member

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    Hey Turbo,

    (About the shotgun....)

    Yeah I was going to use that one too, but the amount of time you would have to put into it would make it almost not worth it due to the small size. I picked the magnum and the AR since they weren't 'as' small but even now it's going to take some more work to get them to where I want them to be. It's not as bad as starting from scratch but with the shotgun it would be pretty close.
     
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  17. Badkitty

    Badkitty Member

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    I'm a toys 'r' us kid I NEVER want to grow up!!
     
  18. Dirtdives

    Dirtdives Keeper of Con Lists Community Staff

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    Unfortunately Toys-R-Us went belly up. So where do you get your toys now? Amazon!!!! You’re and Amazon kid..... that would make you an Amazonian. Or a South American pirate. You are in the wrong Regiment. Or you live in the wrong place where you should be living due to your Amazonian status. There that makes everything clear as mud. I am happy now. SOMEONE GET ME A SCREWDRIVER!!!!!!
     
  19. PaiganBoi

    PaiganBoi Sr Member

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    In the States yes... In Canada it survives.
    :p:p:p:p
     
  20. Dirtdives

    Dirtdives Keeper of Con Lists Community Staff

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    You’re only happy because the toys are still your size...... Is kids-r-us still there to? If not where do you shop for clothes?
     
  21. PaiganBoi

    PaiganBoi Sr Member

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    *grumble*
    :cautious::cautious::cautious::cautious:
     
  22. TurboCharizard

    TurboCharizard RMO & BCO 405th Regiment Officer Community Staff

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    Agreed that LEDs are polar as a diode but mother and father resistors is a new term for me. I never encountered it through my electrical or computer engineering courses.
     
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  23. Badkitty

    Badkitty Member

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    Well maybe the 'father and mother' diodes only apply in my line of work. I work in the radio communications division so we deal with crossover platforms and crystals and that sort of thing every day. So I will try to explain these and although I'm not the best at explaining this maybe it will help you understand what they are and their uses.

    So here goes.....

    If you have a DC circuit from battery to unit device its not a problem at 12v. You can use a normal diode and that why it doesn't drain the battery when the machine is not in use for several days. Now these come into play when you have a DC unit, aka desk mic or tape recorder, on an AC circuit like a 120v wall plug system. (Well sort of but I will explain as this goes on) So the desk mic or tape recorder must have DC to operate at its given value and if AC is what it gets the circuits will fail or not function. Now a father diode will go between the unit of DC control and the AC source, it will not have a pot put it can be physically adjusted to control the power flow to the unit and then that couples to a mother diode that converts it to DC through another circuit that is usually connected to a strip terminal. So it goes from 120v AC to 48v DC in this example, since most industrial tape machines and desk mic typically run on 48v DC systems. It makes it an easy pathway when you can't run DC wiring through a build due to interference it would cause with the machines in the area.

    I hope this makes it easier to understand. :)
     
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  24. Badkitty

    Badkitty Member

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    Well if I'm correct isn't an amazonian the people that wonder woman hails from---and I'm not a South American pirate either. *ARR!!!*
    So I guess I'm an ebay 'r' us kid since I buy a lot of this stuff on ebay. Heck I don't know, I just exist and my favorite place just happens to be... the Twilight Zone.

     
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  25. Badkitty

    Badkitty Member

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    Did some work on the gun today!!! Here are the paints that I used for the build including the primer.

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    So the bottom half is the bumper coater paint and it looks great. I was only able to get half of the top done today so tomorrow I will paint the other side and fabricate the barrel.
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    So tomorrow....
    I hope to get the old LED's out that I burned up and wire in the battery packs and everything like that!!
    Excitement!!! :D:D:D
     

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