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Lightening the rear bolt?

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SirHitalot View Drop Down
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    Posted: 28 October 2007 at 6:29am
Wouldnt it make the gun more gas efficient to have to move less weigt?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Snake6 Quote  Post ReplyReply Direct Link To This Post Posted: 28 October 2007 at 12:08pm
Yes, and no. Companies already sell lightened rear bolts, the problem is with a lighter rear bolt you require a heavier drive spring so it still takes about the same amount of gas to recoil the hammer. 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote RoboCop Quote  Post ReplyReply Direct Link To This Post Posted: 28 October 2007 at 12:53pm
Snake speaks the truth.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote rcase Quote  Post ReplyReply Direct Link To This Post Posted: 13 November 2007 at 8:03pm
would it, however, reduce recoil since there would be less moving mass?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Snake6 Quote  Post ReplyReply Direct Link To This Post Posted: 13 November 2007 at 8:25pm
Yes, it does.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote tippmannfreak Quote  Post ReplyReply Direct Link To This Post Posted: 13 November 2007 at 8:29pm
recoil is a product (the negative product) of the momentum created by firing the paintball. By lightening the bolt, hell the entire gun, you would actually increase the force of recoil (kind of).

(mass of paintball)*(velocity of paintball)=(mass of gun)*(velocity of gun)

the velocity of the gun will be opposite the direction of the paintbal.. in other words, into your body. If the gun is lightened, but the left hand side of the equation is left untouched, the velocity of the gun into your body must be increased.

It must be, or the laws of physics will completely fall apart, and you may very likely explode.

Edited by tippmannfreak - 13 November 2007 at 8:36pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote The Guy Quote  Post ReplyReply Direct Link To This Post Posted: 13 November 2007 at 9:25pm
To simplify what everyone here just said, get an RVA.

A rear velocity adjuster lightens the striking force of the main drive spring effectively using less gas per shot. The way the current velocity adjuster works, the tippmann guns use the same amount of gas no matter the speed.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote rcase Quote  Post ReplyReply Direct Link To This Post Posted: 14 November 2007 at 6:11pm

ah ive broken the laws of physics before its not so bad...I would think though that the equation would be more like this

(mass paintball)(velocity paintball)=(mass bolt)(velocity bolt)=(mass gun)(velocity gun)

assuming... 1 = mass paintball, 280 fps paintball, 3 = mass bolt, x = velocity bolt(fps), 300 =  mass gun, y = velocity gun

1*280fps = 3x = 300y; 280=3x: x=93.3; 93.3=300y: y=0.311

lightened bolt... 1=mass paintball, 280 fps paintball, 1.5 = mass bolt, x=Vb, 300 mass gun, y = Vg

1*280 = 1.5x = 300y; 280=1.5x: x=186.6(increased bolt velocity); 186.6=300y:y=0.622< ahh!! then it is increased velocity so tippfreak was right.

hmm but...1=Mp, 280=Vp, 1.5=Mb, x=Vb, 900=Mg, y=Vg

1*280=1.5x=600y; x=186.6; 186.6=900y: y=0.207(but really tripling gun weight?! poo on that)

So im thinking all we gain by lighting rear bolt is possible faster recocking? Although increasing spring tension to compensate for what, higher fps return? Im getting confused now. I know that rear spring directly effects/affects<dont know which to use> ball fps but ahhhh i think i am goign to explode.

Take all this with a grain of salt im a programmer and dropped out of engineering school many years ago.

 

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Post Options Post Options   Thanks (0) Thanks(0)   Quote tallen702 Quote  Post ReplyReply Direct Link To This Post Posted: 15 November 2007 at 2:20am
Well, here's the drawback on the lightened hammer in a stock valve situation. If you lessen the mass traveling forward to strike the valve, it take more force with less mass to keep the valve open for the same amount of time (dwell) than it would with the stock configuration. Now, if you lighten the rear hammer AND lighten the valve springs, it takes less force to keep the valve open allowing you to lower the input pressure giving you more efficiency as well as reducing the amount of reciprocating mass. Remember, the best marker systems are "balanced" systems where the input pressure, dwell time, and force needed to open the valve and achieve the appropriate dwell time are all carefully balanced.
<Removed overly wide sig. Tsk, you know better.>
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Post Options Post Options   Thanks (0) Thanks(0)   Quote rcase Quote  Post ReplyReply Direct Link To This Post Posted: 15 November 2007 at 5:37pm

hmm then where can i buy the valve springs?

 

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Snake6 Quote  Post ReplyReply Direct Link To This Post Posted: 15 November 2007 at 5:56pm
You can't. You would have to get one custom made. Unless you get the LPK which has a valve with lightened springs in it already.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote rcase Quote  Post ReplyReply Direct Link To This Post Posted: 16 November 2007 at 8:59pm

what is LPK?

 

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Post Options Post Options   Thanks (0) Thanks(0)   Quote kurieitaa Quote  Post ReplyReply Direct Link To This Post Posted: 17 November 2007 at 6:31am
LPK= Low Pressure Kit.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote rcase Quote  Post ReplyReply Direct Link To This Post Posted: 17 November 2007 at 1:44pm

ahh cool...

so then my goal should be LPK, assuming it has lightened rear hammer but if not then lighten hammer, Etrigger, and compressed air and i should get a fairly quick firing gun?

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Post Options Post Options   Thanks (0) Thanks(0)   Quote SSOK Quote  Post ReplyReply Direct Link To This Post Posted: 17 November 2007 at 3:11pm
Originally posted by rcase rcase wrote:

ahh cool...

so then my goal should be LPK, assuming it has lightened rear hammer but if not then lighten hammer, Etrigger, and compressed air and i should get a fairly quick firing gun?

Yup. The fastest 98's are E-BOLTED though. Where the rear bolt is replaced by an electronic ram. You can adjust dwell time and such by pushing a button.

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Post Options Post Options   Thanks (0) Thanks(0)   Quote SirHitalot Quote  Post ReplyReply Direct Link To This Post Posted: 11 December 2007 at 7:09am
Originally posted by tippmannfreak tippmannfreak wrote:

recoil is a product (the negative product) of the momentum created by firing the paintball. By lightening the bolt, hell the entire gun, you would actually increase the force of recoil (kind of).

(mass of paintball)*(velocity of paintball)=(mass of gun)*(velocity of gun)

the velocity of the gun will be opposite the direction of the paintbal.. in other words, into your body. If the gun is lightened, but the left hand side of the equation is left untouched, the velocity of the gun into your body must be increased.

It must be, or the laws of physics will completely fall apart, and you may very likely explode.


Well, you dont calculate with the mass of the bolt which is also pushed forwards. This will make more difference than the mass of the paintball... The bolt of my ion weighs about 10g, and it that is what making the difference between that and my A5... If it was only the paintballs and the marker that mattered, my ion would have more recoil, because its lighter... Also, people say they cant hear that im shooting at them, only the balls flying around their ears, thats not the case with my A5, but it doesnt matter, i love it more:)

(mass of paintball)(velocity of paintball)+(mass of hammer and bolt)(speed of hammer and bolt) = (mass of marker minus the mass of paintball, hammer and bolt)(speed of marker minus paintball, hammer and bolt)


Edited by SirHitalot - 11 December 2007 at 7:11am
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Post Options Post Options   Thanks (0) Thanks(0)   Quote tippmannfreak Quote  Post ReplyReply Direct Link To This Post Posted: 11 December 2007 at 10:35am
if you inclue the mass of the hammer with the mass of the marker, that is the mass of the SYSTEM! it won't make a differnence. You can't say it will make more difference than the mass of the paintball, it is because the mass and velocity of the paintball that you experience "kick."

honestly, a bumb on a month old post for this?
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