Thread Tools

**olddfatbulldog** · August 3rd, 07:00 PM

Lately I've been making homemade paintball stuff with my dad. My next project will be a paintball mortar. It'll be like a bazooka with the same physics. Any ideas, has anyone done this before?

**Fastecho419** · August 3rd, 07:19 PM

Nice. Never even heard of anything like a paintball mortor in my entire life. Pics would be nice soon.

**Tanker89** · August 3rd, 08:11 PM

Take a bazooka& aim it@ a high angle

Sercit · August 3rd, 11:53 PM

Keep in mind! Physics dictate that an object going up, will come down with the same force/speed as it did when going up. Meaning, if you fire a bullet into the air, and it leaves the tip of the gun barrel at over 150 miles an hour, it'll be - at the point where it is level with the original hieght fired - the same speed.

**pbpro115** · August 4th, 12:00 AM

i dont kno about motor, but what i did is kinda interesting. Me and somebuddies (about 20) were playin paintball out at the construction sites. We gave 3 kids on my block masks and a water ballon launcher (launches a water balloon 150+ yards.) They didnt have guns buit it worked for them. Our Shop gives a discount on old paint. they have a section that is 3 boxes for $50. So three kids chipped in and bought that. ( i gave them like $10) They loaded the three-man ballon launcher with paintballs and let them fly. Like one guy got hit. But it kept people in there bunkers. About 20 paintballs flying in the same direction at once is bound to keep u hidden behind a bunker.

**pigstick** · August 4th, 12:39 AM

I find it hard to believe that anything short of a rocket could launch a water balloon 150+ yards.

**Ahmadi6490** · August 4th, 10:39 PM

Well if you search the web there's numerious different plans of making these. A good way to power it up is to use a BBQ ignighter which is used for most spud guns. It's pretty simple, just spray some hairspray into it and your good. Just make sure you use PVC and PVC cement. Cement it up good because if there's an airleak something bad can and will happen.

I use water to check for any bubbles coming out then I cement it very well. If your going to be shooting numerious amouts of paintballs then take newspaper and put about 5-20 paintballs and another sheet of newspaper in there and then fight yourself a good target. If your going to be shooting paintball grenades, potatoes, apples, pears, oranges then make sure your barrel is wide enough to hold those things.

~~~Glad to help~~~~

**Flankergeek** · August 24th, 05:52 AM

you gotta use some pretty complex maths to work out how to get the range you want. A mortar is an indirect fire weapon so there's not alot of point haning it if you're shooting at thing's you can see. So it's gonna have to be well powerfull.
It might alos be interesting to research what you're gonna fire. If you're firing at a target 300 meters away, called in by Spotter, then firing a ballon of paint is unlikely to hit anything. To you're gonna need some kind of air bursting shell, cardboard with a low explosive core which when triggered by =an electronic timer system goes off a predictable distance from the ground. I know the electronics is withing reach cos we looked at timers and stuff in school - it's not hard and most of the components cost about 2 pence each. It is feasable it's just being bothered to put in the time and resources to make it work

**lbreevesii** · August 25th, 02:37 PM

listen to flanker. a mortar is EXTREMELY hard to aim. there was a deal i think at normandy, where the krauts had these black and white striped posts in the water, every boat that went near one got pounded. they were mortar range markers. i think that i would stick to doing a compressed air powered one if u are going to do it. spud gun types tend to be somewaht cumbersome to load and prep etc.

**MikeBola** · August 31st, 09:27 PM

I made a REAL mortar cannon before, but the projectile was too unstable to use effectively. it used large scale rocket engines, like E sized

**Flankergeek** · September 1st, 05:42 AM

**HoboWithAK** · September 1st, 07:48 PM

Quote:

Originally Posted by Sercit

Keep in mind! Physics dictate that an object going up, will come down with the same force/speed as it did when going up. Meaning, if you fire a bullet into the air, and it leaves the tip of the gun barrel at over 150 miles an hour, it'll be - at the point where it is level with the original hieght fired - the same speed.

Try that with a feather.

**HoboWithAK** · September 1st, 07:53 PM

Quote:

Originally Posted by lbreevesii

listen to flanker. a mortar is EXTREMELY hard to aim. there was a deal i think at normandy, where the krauts had these black and white striped posts in the water, every boat that went near one got pounded. they were mortar range markers. i think that i would stick to doing a compressed air powered one if u are going to do it. spud gun types tend to be somewaht cumbersome to load and prep etc.

I think you are talking about the mine poles (I forget what they called them) that were just large telephone poles, not unlike Rommel's Asparagus, with mines on the top. The point of that was so that during high tide, the poles could hold mines underwater so they couldnt be detected, but close enough to the surface that anything going over with a certain keel depth would hit the mine and blow up. Most LCTs that were sunk were either from the mines or mortar fire, or from artillary positions.

**Finnkc** · September 2nd, 12:36 PM

Quote:

Originally Posted by Sercit

Keep in mind! Physics dictate that an object going up, will come down with the same force/speed as it did when going up. Meaning, if you fire a bullet into the air, and it leaves the tip of the gun barrel at over 150 miles an hour, it'll be - at the point where it is level with the original hieght fired - the same speed.

lol think you need to read up on that again ... objects returning to the ground accelerate at 9.8m/s until they reach what is know as a terminal velocity.

regardless of what speed it reached pervious to 0 m/s (top of arc) when it returns to earth via gravity it moves as fast as it possibly can, given acceleration due to gravity (9.8 m/s) and air resistance. All objects do.

**Hobo_Joe** · September 3rd, 02:10 AM

Finnkc - true, an object will return to the same speed in a frictonless enviroment... an object will accellerate at 9.8m/s2 (sorry cant do the little squared sign

). m/s is speed, same as fps.

In an enviroment with friction where you will most likely be shooting this mortar, unless you are one rick bastard, I dout that since you are makeing a mortar and not spending loads of cash for some one to make it for you.

The terminal velocity will be dependant on the shape of the object that you are firing. If you use a water balloon that will faller at a higher TV than say 50 paintballs glued together, due to wind resistance.

The ideal would be to have the paintballs loose in the "barrel" as this will have a rain type affect which wil invitable have a better chance of hitting some one than a single larger "ball".

As for a design plan, single PVC pipe +- 3 foot long, about 10 cm in diameter.
Have air vents about half way up the pipe. A base plate, inside the pipe, this should be cup shaped to hold the paint. This will alow the base plate to move put the pipe by pressure from below but wont alow it to leave the pipe.

To power it a paintball gun type system would be quite goot but very inificient.

A spud gun would work, but the whole getting air is a prob. For lighter fluid, install the refill part of a refilable lighter into the pipe near the base, this allows you to fill the chamber with an ignitable sourse. Maybe some air in a can too but its a lot more expensive than just using air. So you can try an old bike pump, make sure to make a 1 way valve over the end or that puppy will kick like a ***** on heat!!!

Have fun,
I will paint up a diagram for you a bit later

**Hobo_Joe** · September 3rd, 09:43 AM

Basic Idea

, I forgot the BBQ lighter but I am sure you can figure that one out. The problems with the pic are not my side its due to server load, you may have to wait a while

**GBRudy16** · September 3rd, 11:02 AM

yeah if you EVER want to use it in a game I don't suggest the spud gun idea (do a search for mortars) you'll find plenty of sites posted by HP. if you use an explosive gas the fields insurance IS NOT going to cover it. Also all mortars I've seen used in a game essentially were an 8 ounce cup full of paintballs at the arc they fall upon the group this was used at the d-day in oklahoma pretty sucessfully.

**Hobo_Joe** · September 3rd, 01:22 PM

In that case just grab a handfull of paintballs and throw it at the enemy's!!!

p8NtB/-\113r · September 3rd, 10:50 PM

ever heard of a spud gun? same comcept.

**MikeBola** · September 5th, 01:49 PM

um, spud guns are very prone to exploding... and I've seen it happen a few times, when I was having them developed by my team of moronic 17 year olds a few years ago. it's very possible to maim or kill the operator in a misfire.

and I used electric or spinning flint ignitors in mine, cause they were much less dangerous, and you don't need 2 people to fire it.

use a bike pump or electric car pump to power it, along with two ball valves. thet's usually the best way to do it.