closed bolt Tippmann
Printed From: Tippmann Paintball
Category: Tippmann Paintball
Forum Name: Paintball Ideas / News From Tippmann
Forum Description: Got a new idea or a way to improve something?
URL: http://www.tippmannsports.com/forum/wwf77a/forum_posts.asp?TID=166131
Printed Date: 16 July 2025 at 6:56am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: closed bolt Tippmann
Posted By: an94
Subject: closed bolt Tippmann
Date Posted: 15 April 2007 at 4:10am
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think of the anti-chop mod with the spring, but the rear bolt is not holding the front bolt back. once the sear trips the rear bolt & fires the gun, the linkage arm (this is where I havent really thought how to make it work) will catch the front bolt & pull it back. once its all the way back, it will release it, the spring will push it back forward chambering a ball (hopefully). any thoughts how I could make this work? ------------- 1 paintball gun package=$150 1 case of paint=$50 air & entry fee=$15 lighting up newbies all day long= Priceless |
Replies:
Posted By: Yomillio
Date Posted: 15 April 2007 at 9:09am
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...
why? ------------- 
http://www.tippmann.com/forum/wwf77a/forum_posts.asp?TID=172327 - Forum XBL Gamertag Collection |
Posted By: tallen702
Date Posted: 15 April 2007 at 10:02am
Viva La Revolution!!!!!!!
 ------------- <Removed overly wide sig. Tsk, you know better.> |
Posted By: stick_boy_2002
Date Posted: 17 April 2007 at 12:19pm
why does anyone do something like this. its just wrong and original. ------------- 
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Yomillio wrote:Posted By: c4cypher
Date Posted: 17 April 2007 at 12:39pm
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I don't see what sort of benefit you'd get from this. The best thing about a 'closed bolt' system is that supposedly you'd be able to fire a shot without having a heavy bolt rock forward first, in this concept, the rear-bolt is still going to be 'open' and it's going to affect 'accuracy' a lot more than having the front bolt 'closed'. I personally see this as rather pointless.
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Posted By: tallen702
Date Posted: 17 April 2007 at 8:01pm
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Actually, the point of a closed bolt system is that when taking single or multiple slow-shots (not rapid fire) the ball settles in the breech before being fired which CAN help accuracy. Now, in a rapid-fire situation, (more than 2 or so balls per seconds) the ball doesn't have enough time to settle between shots, so that added advantage is shot to heck. The other thing is that if you are using a separate system to operate the bolt and the hammer/ram, you can get some increased efficiency since you can tune the LPR to operate the bolt at a very very low pressure. All in all however, closed bolt systems are a rarity. Outside of AKA and some 'cocker clones, there aren't really any out there. ------------- <Removed overly wide sig. Tsk, you know better.> |
Posted By: hybrid-sniper
Date Posted: 19 April 2007 at 10:18pm
| an94, it's just not that simple. |
Posted By: The Guy
Date Posted: 21 April 2007 at 12:10am
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the more complicated you make something, the easer it is to fail. The CVX Valve was designed for an open bolt gun. ------------- http://www.anomationanodizing.com - My Site 
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Posted By: an94
Date Posted: 23 April 2007 at 8:47am
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yeah, I thought about it later on & the front bolt would cycle too fast anyway.
------------- 1 paintball gun package=$150 1 case of paint=$50 air & entry fee=$15 lighting up newbies all day long= Priceless |
Posted By: c4cypher
Date Posted: 23 April 2007 at 9:01am
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Speaking from the viewpoint of modifying a 98 or other blow back marker ... I still don't see how this would help things if the back bolt still has to fall forward to fire the marker. How does the 'settling' of the paint really affect accuracy? The main benefit I saw from having a marker like a 'cocker is that there was no big hammer or back bolt to slam forward and knock off your aim when firing your marker (similar to the advantage of the H-K G3/MP series design), is there more to it? And honestly, I've made fun of your sig, but I've got nothing against autocockers. (even though I'm not a huge fan of back blocks or most other speedball style markers) ------------- 'Bring the rain!' http://www.tippmann.com/forum/wwf77a/forum_posts.asp?TID=165531&PN=5 - New to the game? |
Posted By: tallen702
Date Posted: 25 April 2007 at 1:29pm
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There's still a hammer that has considerable mass (probably the same, if not more than the '98 hammer) falling forward in an autococker. something has to open the valve after all. Now, Autocockers are inherently set up better for low-pressure operation due to their distinctly modular construction. You don't need to go out and buy a whole kit just to go LP, you already have a reg, just swap out springs and eventually move to a higher-flow valve. The energy with which the mass of the hammer is thrown forward or backward governs the "recoil" effect that you associate with a reciprocating mass in a paintball marker. The settling of the ball in the chamber means that the ball isn't in motion until the propellant hits it. Giving you optimal conditions for the ball to fly true. An open-bolt system doesn't give a ball a chance to be in a stable state before having the propellant it it as it is in motion from the moment the bolt and hammer linkage starts forward. Thus, the ball is "bouncing" in the breech as the airflow hits it which can cause unwanted turbulence and inconsistent airflow around the ball itself. The benefits of settling are minimal at best, and as I said, when rapidly firing, the chambering and firing sequences in an autococker are so close, the ball doesn't have time to stop moving before the air hits it. ------------- <Removed overly wide sig. Tsk, you know better.> |