SpudFiles

My friend and I have been toying with the idea of making claymores for playing paintball. Since grape shot devices are not allowed at most fields and next to impossible to chrono. I thought why not use liquid paint and spray them as they walk by similar to a landmine that sprays paint when you step on it. These are perfectly legal and safe. We also want to use the electronic selonoid to remote detonate it. I will need to rig a battery box and remote. (that should not be that difficult)

Here is the basic concept.
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I will use a 2" T and drill some holes for some spray nozzels. (different angles perhaps) I want it to work like a super soaker basically. On end will have a cap that screws on to refill it with paint.

Do you think this can work? If not why.

Will the paint gum up the diaphram of the valve. I could always clean it after every use.

looks good. And yes, I think it would work quite well actually.

One thing I would change is the angles of the spray nozzles.
Instead of having them all facing the same direction, I would have the two outer nozzles facing outside at a .. 65* angle instead of the 90* angle...but leave the middle one at 90*. That way, you can catch them from any direction when they're running.

Other than that, Very nice blueprints.. All that's left to do now is buy parts and build!

EDIT: Oh, also...how do you plan on preventing the paint from going back to the Sprinkler valve? or don't you?

STHORNE wrote:looks good. And yes, I think it would work quite well actually.

One thing I would change is the angles of the spray nozzles.
Instead of having them all facing the same direction, I would have the two outer nozzles facing outside at a .. 65* angle instead of the 90* angle...but leave the middle one at 90*. That way, you can catch them from any direction when they're running.

Other than that, Very nice blueprints.. All that's left to do now is buy parts and build!

EDIT: Oh, also...how do you plan on preventing the paint from going back to the Sprinkler valve? or don't you?

I don't plan on preventing the paint from going back to the sprinkler valve. Will this cause a problem? I assumed water went through these when using them in irrigation systems. I just know how these vavles work on spud guns and not what they are actually intended for.....lol.

I will put the nozzles at different angles for sure. The air chamber will be designed to wrap around the sprinkler valve on either side for more stability. We will then paint camo on them.

yeah, they are meant to have water going through them and that wouldn't be a problem. But I am concerned about the paint drying inside the sprinkler valve. As long as you wash it out after and fire it off a couple times with water being in the chamber (so it passes fast through the sprinkler), you should be golden

STHORNE wrote:yeah, they are meant to have water going through them and that wouldn't be a problem. But I am concerned about the paint drying inside the sprinkler valve. As long as you wash it out after and fire it off a couple times with water being in the chamber (so it passes fast through the sprinkler), you should be golden

Cool, Thanks!

You may want a piston driving the paint out so that all the paint is pushed out and not wasted. You'd need less pressure then and the air wouldnt rise to empoty out of the nozzles without pushing the paint out.

Biopyro wrote:You may want a piston driving the paint out so that all the paint is pushed out and not wasted. You'd need less pressure then and the air wouldnt rise to empoty out of the nozzles without pushing the paint out.

Your wording is a little confusing.

I get that a piston valve would be more effective, but I don't want to go that route. I want to keep the construction simple.

Are you saying that using air alone will not push the paint out of the nozzles. Will the air just rise through the paint and escape out of the nozzles?

I'm not really concerned about wasting paint. The paint is diluted with water and is relatively cheap.

i agree with biopyro, the air is going to rise through the paint instead of pushing it out, it might sputter a little paint out, but not the stream you're thinking of

Look at that water gun. You need a solid object pushing the paint or yeah, the air will just rise through epecially if the paint isn't very thick.
Imagine the claymore as a stright pipe. Your design might just work like bubbling air through, but you need it to work more like a syringe. A sprinkler valve is perfect for your project because water is so much more viscuous than air, so it can't flow as fast. Happy trap-springing

Eddbot wrote:i agree with biopyro, the air is going to rise through the paint instead of pushing it out, it might sputter a little paint out, but not the stream you're thinking of

I want this to work similar to the fire extinguisher mod or those homemade grenade fill stations. I know this idea can work without a piston valve.

Ok, I know this design would work. I just don't know how far it would spray paint. I also need a valve I can remote detonate.

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Biopyro wrote:Look at that water gun. You need a solid object pushing the paint or yeah, the air will just rise through epecially if the paint isn't very thick.
Imagine the claymore as a stright pipe. Your design might just work like bubbling air through, but you need it to work more like a syringe. A sprinkler valve is perfect for your project because water is so much more viscuous than air, so it can't flow as fast. Happy trap-springing

At the base of the tee I could make a disk with a rubber seal around it. This would keep most of the paint from leaking back to the sprinkler valve and the air would hit the disk and push the paint up on out. This would be similar to a piston. I'm concerned the disk my crack the top of the T when it hits. I'll have to think of something fairly soft.

You could leave a sprinklers solednoid in and run wires to wherever you are. And that desing would work better, but you'dstill have some leackage.

pizlo wrote:You could leave a sprinklers solednoid in and run wires to wherever you are. And that desing would work better, but you'dstill have some leackage.

Yes, for realistic use an electronic controlled sprinkler valve will be better IMO.

Also I think the paint would definately be an issue since it will dry on the internals and diaphram.

Depending on the barrel size, I used an entire plastic grocery bag (Giant, safeway, Or the smaller 7-11 ones) for wadding in 1"barrel.
Minimal water seeps through and they seal nice and are light for all types of other stuff too.

I like the wire to sprinkler idea and think you need more barrels, because:

-A real "Claymore" land mine has a wire and the firer must be atleast 16 meters behind it or will be injured by concussion.

-Has about 160 degree kill radius (shaped like a baseball field)EDIT:Ooops that's 60 degrees.

-consists of 700 ball bearings propelled by 1.5lb.s of c-4

-Also triggered by a hand squeezed grip electric generated.

-There's a little flip open sight on top consisting of two rectangles.

Also there carried in a pouch around the firer's neck when not positioned yet!

Geez, those poor Iraqi's (sarcasm).

BTW, with 3 barrels it's more like a "Duckfoot" pistol. Cool concept though. 8)

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I could just let the paint flow through the sprinkler valve and clean it when I'm done. I will rig a 3 nozzle device to the output end. This should work better in theory than the first design. I will use two paint chambers so I can add more volume while reducing the height VS. one tall single chamber. One short chamber may be enouugh. I don't want to soak the enemy.......although that might be funny.