"Death from above": Electo-Mortar

[frop]

how about something like this?

[Rokudon]

-could work, but stability of your slider is an issue as it travels down... it could twist around and dump the balloon into the air behind it, or it can angle and let all the air flow out uselessly. make the slider piece aliiitle more stable and it should be fine.
-and the carboard splitting thing? sounds like a sabot round, they're quite accurate, not sure if it'l hurt though. thats why i say go with a set of paintballs... more like rain

[frop]

then machine 4 cruciform slots in the tube & have tabs on the top & bottom of the slider that fit in the slots. Also, the slider is supposed to be taller, I just didn't put it in the pic. Make it hold a couple hundred rounds

EDIT: Also, the bumper can act liek a choke on a shotgun.

[RiddalinJunkie08]

Seems like a good idea, but what would you use to power it? I mean, a nitro tank would only last a couple shots.
-Mark

[frop]

a regged scuba?

[Rokudon]

aahahahaa oh that would be funny... wlak into a scenario game, every1's pumpers and you walk on with yout scuba tank and mortar... oohhh fun.... anyway, arent scuba tanks already regged down to breathable pressures? or are you talking about just a tank and adding your own reg to it

[frop]

if my info is correct (it prolly aint) the tank itself is not regged, you put one in yourself or do it like a fill station

[TheTramp]

then machine 4 cruciform slots in the tube & have tabs on the top & bottom of the slider that fit in the slots. Also, the slider is supposed to be taller, I just didn't put it in the pic. Make it hold a couple hundred rounds

EDIT: Also, the bumper can act liek a choke on a shotgun.

When using paintballs in a launcher that last thing you'd want is a choke. All that would do is break all the paint that is "choked."

There is also the issue of the slider. If you do not have anyway for the air to escape, the slider will blast the top off you barrel in a dangerous shower of fast moving PVC.

The way to get around this is to use a "slider" made out of packing foam that is stuffed down the barrel before loading the balls, or grenade, etc. This foam slider will only fly about 10 feet so it'll be easy to find.

if my info is correct (it prolly aint) the tank itself is not regged, you put one in yourself or do it like a fill station

SCUBA tanks are not regged at the first stage and a fill station does not involve a reg either. When you open the valve you get all the pressure left in the tank.

You can certainly rig up a regulator between the SCUBA valve and the launcher but most common regs will not like a direct 3000Psi input.

Another idea is to have a HPA tank hooked to the SCUBA using a fill station then use a Palmers female (screws directly onto the tank's ASA threads) regulator. This is nice because you can run a line from the palmeres set at 60-80 psi and you'll get good shots and be very safe.

[frop]

When using paintballs in a launcher that last thing you'd want is a choke. All that would do is break all the paint that is "choked."

There is also the issue of the slider. If you do not have anyway for the air to escape, the slider will blast the top off you barrel in a dangerous shower of fast moving PVC.

The way to get around this is to use a "slider" made out of packing foam that is stuffed down the barrel before loading the balls, or grenade, etc. This foam slider will only fly about 10 feet so it'll be easy to find.

What you're talking about is more like a muzzle-loading rifle or cannon. My only concern with that would be the ease (or possible lack of) making ammunition. In my mind, to do it like that, it'd have to be prepackaged, like later muzzle loaders. Also, maybe a light plastic instead of foam, since it still has to slide down & actuate the firing pin.

[TheTramp]

What you're talking about is more like a muzzle-loading rifle or cannon. My only concern with that would be the ease (or possible lack of) making ammunition. In my mind, to do it like that, it'd have to be prepackaged, like later muzzle loaders. Also, maybe a light plastic instead of foam, since it still has to slide down & actuate the firing pin.

Ah, what I missed it that you're planning on the slider depressing a pin to dump the chamber. I though you were going to use a more standard valve.

I'm sure that it is technicly possible for someone to come up with a way to do it that way but unfortunatly I don't think it's really feasable to make a valve that big that's opened with such a comparably light weight/force.

What you've trying to do is like using the hammer side of a stacked blow back to shoot the round. You'd need a lot of force to depress that pim unless it was super thin. If it was super thin then there wouldn't be much flow. Basicly, it just wont work properly that way. Just think about the fact that it's the air that's accelerating the round not the slider. If it's the slider that pushing the round then it would hve to come out the end of the barrel or else the gas couldn't escape. If you had some sort of vent holes it would ruin the efficency.

You're right, the way I'm talking about is just like a muzzle-loading rifle or cannon. In fact that the way all but a very few launchers work. You use either preloader "rounds" or simply use what ammounts to wadding like in a musket.

[Kavall]

Simple Solutions

Really all your are describing is a normal air cannon with the fire controls mounted inside the tube. Hook a CO2 or HPA tank to a reg, knock it down to 100psi feed it into a air chamber conntected to an inground sprinkler valve connect the valve to a battery box and push button switch. Mount the switch inside the launch tube and bingo your done.

As for ammo, try making a simple casing. IE: Soda bottle with the top cut off and the sides slit into four or eight pedals. Or just making a similar item out of carboard works just fine.


I have built many bazooka style launchers with the fire controls on the outside, but not any with them on the inside, I don't see why it would be any trouble. Most of the ones I have built look something like this.

-000000 (air chamber)
{ (sprinkler valve)
-ooooooooooooooo (barrel)

Usually mounted between the air chamber and the barrel is a hobby box from radio shack that holds batteries, a simple push button, and a two position switch for a safety. Turn the switch on, press the button and you open the valve and dump the air from the chamber to the barrel.

[TheTramp]

Really all your are describing is a normal air cannon with the fire controls mounted inside the tube. Hook a CO2 or HPA tank to a reg, knock it down to 100psi feed it into a air chamber conntected to an inground sprinkler valve connect the valve to a battery box and push button switch. Mount the switch inside the launch tube and bingo your done.

While you're right, this is this is the most common way to build a launcher (I use a pnumatic trigger on the sprinkler instead of the electric), he's talking about a completely different "valve" style.

I do like the idea of the plastic bottle used as the sabot. I'll have to try that.

[doc_Zox]

hows about something like this:


from the top of EMR Castle Arrrgh, at a steep angle, we clear the top of the pine trees and we can rain paint onto the edge of the stilt village

its cool to watch 100 paintballs spread out at apex into a 10 foot pattern and fall like hail.

we "sabot" fore and aft with the bottom inch of a styrofoam cup

[crazedloon]

http://www.model98.net/phpbb/viewtopic.php?t=3369&start=0

in brief a missle that is guided by a electronic board.

[frop]

^^ Welcome to AO!

That's some advanced stuff you're getting into there. More power to you, but you'll understand if i have my doubts. But if hitech or BlackVCG were to get in on that...mmmm...mmmmmmmmm