mateba
4/20 K AAV & Steel City Airsoft 
Posts: 426
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Post by mateba on Feb 26, 2007 17:31:32 GMT -5
Ive been looking around for answers but so far Zac's idea for a homemade tracer unit and an UV magazine light seems to be an easy modification. The BBs are a little expensive and the UV can damage your eyes but by mixing your BBs and wearing eye protection when needed this can be avoided.
My idea for an automated hi-cap is pending until further examination. I would like to hook the winder gear to a motor or a servo and make a costum magazine. If I can have things my way the profile of a 30rnd HK91 mag would be prefered over my bulky c-mag.
the idea for a muzzle flasher is complicated because there needs to be away to pickup a signal produced by the BB at a certain point down the barrel. Earbuds will work as microphones and an amplifier with increase this signal significantly but this kind of electrical stuff is over my head.
Is there an electrical enginere in the house? ;D
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Maddcow
Team 4/20 K AAV
Maddcow, the other white meat.
Posts: 13
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Post by Maddcow on Mar 5, 2007 13:02:46 GMT -5
Electrical engineer no, but a mechanical who does enough machine design and automation can make a few suggestions.
For your muzzle flasher, there are several ways that you could approach this and keep it on the fairly cheap and small. Acoustic sensors are going to be big and expensive, I'd advise against it for development and prototyping. Maybe after you are willing to spend more dough.
You can buy a small proximity sensor that detects the BB comming out of the barrel (www.ab.com). This would run you maybe 25-35 bucks. Simple LED's for light as well found at any radio shack. The dificult part will be the gate components involved of which are pretty simple if you know what you are asking for. Generally the emplyees are clueless at radio shack. All components could be conceiled inside a fire supression tip. The electronics could be run off a AAA battery and would probably last most of the day on just one. I think a bit of creativity you could hide the battery in the stock or make you a new front sight.
A second option would be to get a LED set to work as your sensor. This is a bit more difficult. You can find many home made sensors using LEDs on the net. But same principal, BB passes by LED(infrared), other LEDs (visable light) blink.
The other option you have is to wire the trigger/motor to a set of LEDs. As the motor cycles (has electricity applied to it) you have a small resistor/capacitor that will operate your flash (LEDs) in a rate similar to your fire rate (basically requiring a build up of electricity before discharging and repeating the cycle). This can be tweeked with a small rheostadt, or adjusting the resistor you have in line. These components would fit nicely into some stocks, and would be the least expensive way I can think of. All of this could be purchases at radio shack. Guestimate on budget, 20 bucks.
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mateba
4/20 K AAV & Steel City Airsoft
Posts: 426
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Post by mateba on Mar 5, 2007 18:25:18 GMT -5
Thank you for your tips. So far I have a G3 with a 14mm clockwise adapter on it. My barrel runs about half the length of the phantom muzzel and give a little bit of room. I like the IR LED idea it seems to be a durrable and compact. This is like a garage door switch right? How can I turn the light signal into a "OFF" and the absence of IR an "ON"?
thanks
mateba
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Maddcow
Team 4/20 K AAV
Maddcow, the other white meat.
Posts: 13
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Post by Maddcow on Mar 6, 2007 16:28:55 GMT -5
The way garage door sensors work is this: The sensors send a constant stream of light from a emitter to a receiver. From here you will want the opposite results than a garage door opener. If the beam is not being sensed by the receiver, then it allows current to go to the LEDs to be lit up. Otherwise the current is interupted and you get no light.
Basically you will be creating a very similar set up except on a smaller scale. The things you will need to do some researching on is the delay time of the LED or light source to react (light up) because your BB is only going to break the stream for a fraction of a second. Your light source must be able to react and display light quick enough or you will not see any results. Typically LEDs are not the fastest reacting light sources.
You may be able to find a smaller unit used for garage doors to play around with, but I think the power requirements for that size equipment may be more than you want to build into this.
To actually build a set up like this, I'd start with:
Sensors and reflector (IR emitter and matched phototransistor run you about $3.50 or some other photoresistor and other sensor)
Light source (3mm or 5mm yellow and red LEDs for instance NOT BLINKING should run you $1.50 ea)
A transistor/resistor/capacitor or transformer of some type to step up or down the voltage for the components.
Battery (I'd shoot for rechargable AAA)
Wire (Nothing biger than 18 ga)
and a bit of patience to figure out mounting and wiring.
I can probably make one up for you to show you, it would be small enough to drill holes into the flash supressor to mount almost everything. You could get creative enought to put a switch in and make the battery part of the front sight. I'd have to check to see how much drain there is on a 1.5v battery to see if you could go smaller in battery size, or to wire your lights off the main battery.
Hmmm maybey I should make a few of these up and sell them as kits.
Maddcow
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mateba
4/20 K AAV & Steel City Airsoft
Posts: 426
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Post by mateba on Mar 6, 2007 21:17:29 GMT -5
if you could make a universal kit it could be the "pet rock" of airsoft. www.zippyvideos.com/5044827285778076/flashers-all/If you look closely you can see these guys have their outside of the muzzle. I intend to use mine during the daylight and dusk so an internal flasher would be more aesthetically pleasing. If you do find the time to create one please tell me what I can do to help. i was planning to buy a 5-40w welding iron and station and wing it this summer but if you beat me to it more power to ya. |
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Maddcow
Team 4/20 K AAV
Maddcow, the other white meat.
Posts: 13
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Post by Maddcow on Mar 8, 2007 8:43:28 GMT -5
I'll see if I can't throw something together for this weekend at St. Patricksday Blood fest o'rama 2007 :-)
Hunt me down, and I'll show you what I came up with.
Maddcow
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mateba
4/20 K AAV & Steel City Airsoft
Posts: 426
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Post by mateba on Mar 8, 2007 13:19:02 GMT -5
i should be there friday night but itll be late. Who should I look for? I drive a 2001 black explorer. I use a G3/SG1 and wear flecktan. I have short brown hair, long side burns and have blue eyes.
see ya there!
mateba
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Maddcow
Team 4/20 K AAV
Maddcow, the other white meat.
Posts: 13
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Post by Maddcow on Mar 8, 2007 21:39:03 GMT -5
I stopped by radio shack tonight, got some stuff we can try it out. Cost me just shy of $11.00, big spender aren't I?
I'll be there friday night probably late as well. I have a 4 hour drive to get there. I'll be driving the Blue Nissan Xterra. I'll be in traditional camo, boony hat and weilding a camo M15. If all else fails, ask Mongo, he will know if I'm there yet or not.
Maddcow
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mateba
4/20 K AAV & Steel City Airsoft
Posts: 426
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Post by mateba on Mar 8, 2007 23:26:33 GMT -5
alright ill see there
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Maddcow
Team 4/20 K AAV
Maddcow, the other white meat.
Posts: 13
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Post by Maddcow on Mar 15, 2007 8:50:12 GMT -5
Mateba,
Well I had a chance to sit down and test the components, it seems like the response times are going to be o.k. but I'm going to have to put in a voltage comparator chip to make it work right. Currently it works backwards. This adds about 2 bucks to the over all cost (less than $13 bucks), but it is still looking like it will work well. I'll try to get some time this weekend to put it together on the barrel and maybe squeeze off a few rounds and get it on video and post a link to it here.
Now to start pondering for the next challange, a good frag grenade.....
Maddcow
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mateba
4/20 K AAV & Steel City Airsoft
Posts: 426
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Post by mateba on Mar 15, 2007 23:39:37 GMT -5
that sounds awsome! do you think you will be able to stick it into a flashhider?
I am going to get a few HK91 30 rd mags and try to modify a hicap into a side by side box mag. I would like to mount UV lights inside. Ill have to cut the hicap in two pieces and extend the half where the BBs come out with some tubing. I want to mount the UV LEDs in this extension so tracer BBs will be charging before they are shot.
thanks for the update
mateba
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Tripps
Sergeant
I'm a freakin' ninja!!
Posts: 155
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Post by Tripps on Mar 20, 2007 9:02:23 GMT -5
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mateba
4/20 K AAV & Steel City Airsoft
Posts: 426
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Post by mateba on Mar 20, 2007 17:21:07 GMT -5
i like that site. there are some neat stuff at airsoftmehanics too but they are a little over my head. I don't know jack about electrical engineering!
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mateba
4/20 K AAV & Steel City Airsoft
Posts: 426
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Post by mateba on Mar 21, 2007 13:36:46 GMT -5
how is it going madcow? have you tested it?
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Maddcow
Team 4/20 K AAV
Maddcow, the other white meat.
Posts: 13
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Post by Maddcow on Mar 21, 2007 15:46:27 GMT -5
Yeah, I did some simple testing on if it would keep up with firing rate and it kept up beautifully. I'm currently working on a good universal mounting idea or some flexability in mounting on different rifles.
I'll try to get some video of it in operation here this week or this weekend. I'll post a link here on the board as soon as I get something. I'll try to do some upclose shots and some distance shots so peeps can see it's effect in action. Been dealing with my 1 year old being sick and fussy so I haven't gotten too much done lately.
Maddcow
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