Limits to maximum feed speed, and increasing?

[Jotsy]

in the name of science, innovation and development, nothing is ever enough

[TheTramp]

54 cps from that STO

I don't believe for a second that that STO was doing complete cycles such that if a ball was fed it would leave the barrel at 300fps. You can move the bolt back and forth as fast as you want but it has to stay forward long and hard enough to open the valve fully or it's worthless. Less than worthless in fact because it makes people think that 54 "shots" per second is possible with present technology.

[shartley]

[Lohman446]

You like taking little kids balloons and putting a pin through them because they don't serve any real world "useful" purpose too don't you

All in fun, all in fun

[SlartyBartFast]

How long till the thread ending realisation that if your loader could feed that fast, why do you need a marker?

Just put a 90degree bend on the bottom of a supped-up HALO and you're good to go.

Or, crank those Qpods and just point the output at your opponents.

[SlartyBartFast]

You stick jet engines on bicycles.

http://www.amtjets.com/gallery_jetbike_md.htm

[TheTramp]

You like taking little kids balloons and putting a pin through them because they don't serve any real world "useful" purpose too don't you

Now that's the funniest thing I've read in a good long time.

[AGD202]

u know what? it occured to me there's another way to find out (also since it seemed everybody just went an ignored my first post hahah).... plug your barrel with a barrel plug (the plug kind, not the condom/sock kind) then turn your velocity waaaaay down to the point where it won't break when hitting the plug anymore (if it'll even go that far down). you have then found the velocity at which it won't break when hitting a hard object. (like the breech wall)

if u wanna talk "future innovations" sci-fi talk, then how about they come up frozen (like "dry" frozen) paintballs, and then have the gun have some kinda super microwave in the breech to "cook" them so the insides turn liquid again. basically, the balls need to be hard so they don't break in the loader/gun, but they need to be soft so they break on target... sounds like they need to change in form at some point during firing

hahah, wheee i'm having fun

and when they unfreeze it will turn the shell into jello.... u ever stick frozen pizza rolls in the microwave?? the crusts on them are really soft and thats what would hapen to the paintball shells... so therefore they would not break, or shoot right let alone go down the barrel.

[AGD202]

Lol, and anymore... if the gun doesnt weight .0000000000000000000009oz nobody will even consider looking at it cuz its "too heavy" so therefore even a single paintball is getting too heavy, u can just forget about a 50lb scuba tank.


We should start making a ULE paintball, make them out of some super light liquid and shell so they can weight .000000000000000000000000000000000000000000000009o z and people can once again carry more than just 1 ball.

[personman]

We should start making a ULE paintball, make them out of some super light liquid and shell so they can weight .000000000000000000000000000000000000000000000009o z

You realise a ball like that would go like 2 feet dont you?

[shartley]

You like taking little kids balloons and putting a pin through them because they don't serve any real world "useful" purpose too don't you

All in fun, all in fun

Well I DID let it go for two pages before I posted.... And I thought you would take what I said and run with it by making a new thread. LOL

You stick jet engines on bicycles.

http://www.amtjets.com/gallery_jetbike_md.htm

Doah!

Of course if he really wanted speed he might want to turn the engine around so that he has to try to pedal away from the blast of hot air hitting his rear....

[Lohman446]

Well I DID let it go for two pages before I posted.... And I thought you would take what I said and run with it by making a new thread. LOL

Actually I earmarked it in my mind for tomorrows thread - people think these questions are easy to come up with, Im still working on the wording

[ScatterPlot]

To you who are saying use "souped up warps or halos"- do you realize the amount of power you would need to get a HOPPER to shoot paintballs? If they could do that, we wouldn't need guns.

You'd need like 120v wall outlets and a 5hp motor to do that




(yes I was exagerating, but my point was that you can't just add batteries to a halo and make it go fast enough to shoot a ball)





Find out the minimum speed a paintball will break at, with that you can determine how fast they must come down the stack.

[SlartyBartFast]

Find out the minimum speed a paintball will break at, with that you can determine how fast they must come down the stack.

The speed at which they will break doesn't give you much. It's IMPOSSIBLE to continuously feed balls. They MUST be stop and go unless you design some complicated oneway hermetic feed system. Takes a ball 5ms to accelerate to 300fps and leave the barrel. Therefor the paintball stack MUST be at rest for 5ms minimum. So, that's 200bps if the paintballs could magically "appear" in the breech instantaneously.

http://hyperphysics.phy-astr.gsu.edu/hbase/mot.html

0-10fps(0-3m/s) in .68"(0.017272m) >> 260.53728578045394m/s^2 >> 26.5g

From that you could calculate the required force from the loader.

But, to get max possible ROF you can calculate the time the ball takes to load.

1s / (time to load + time to clear barrel) = max ROF.

The same calulator gives 0.011514666666666666s to load a ball with a final velocity of 3m/s.

1/0.0165

So, 60bps MAX ROF when bolt/action return time is ZERO.

But I'm lazy, so my calculations might be way off.....

Now if you could accelerate the ball and then decelerate in a controled manner the theoretical limit may go way high. The maximum to determine would be the maximum acceleration a painball can withstand.

But all this complexity, for what advantage?

[Lohman446]

The speed at which they will break doesn't give you much. It's IMPOSSIBLE to continuously feed balls. They MUST be stop and go unless you design some complicated oneway hermetic feed system. Takes a ball 5ms to accelerate to 300fps and leave the barrel. Therefor the paintball stack MUST be at rest for 5ms minimum. So, that's 200bps if the paintballs could magically "appear" in the breech instantaneously.

http://hyperphysics.phy-astr.gsu.edu/hbase/mot.html

0-10fps(0-3m/s) in .68"(0.017272m) >> 260.53728578045394m/s^2 >> 26.5g

From that you could calculate the required force from the loader.

But, to get max possible ROF you can calculate the time the ball takes to load.

1s / (time to load + time to clear barrel) = max ROF.

The same calulator gives 0.011514666666666666s to load a ball with a final velocity of 3m/s.

1/0.0165

So, 60bps MAX ROF when bolt/action return time is ZERO.

But I'm lazy, so my calculations might be way off.....

Now if you could accelerate the ball and then decelerate in a controled manner the theoretical limit may go way high. The maximum to determine would be the maximum acceleration a painball can withstand.

But all this complexity, for what advantage?

I'm not going to question the calculations, you know the math as well, frankly better, than I do. Let me ask this - why does the ball have to be at 300FPS and out of the barrel before the next one is fired. It already has its "air charge" that is bringing it up to speed, if the bolt/valve was closed couldn't another ball be dropped and fired without effecting it?