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Old 02-19-2013, 09:44 PM #1
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Who wants to make some money?

So with almost all the EigenBolts out I'm sure people are looking for a good bolt guide with an anti-rollback. Seeing some custom made ones brings hope, but I'm sure there are plenty of people like me, who not only suck at mods, but also like everything in the internals to look nice and pretty. That said, I'm hoping we can bring interest to some of the skilled people on PBN to make a small pre-ordered run of something like this for shocker open-face bolts:
(nummech.com) Of course it will need to be a low pressure one like the NDZ low pressure one, and offer a similar tool-less handle in the back. What do you guys think? Hopefully we can convince some of the gods on this forum to help us out.
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Old 02-19-2013, 09:46 PM #2
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What about this?
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Originally Posted by jim4130 View Post
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Old 02-19-2013, 09:47 PM #3
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Yes.. while that would work, I'm more interested in one that's not so.. home-made looking. lol, also, the cone shape would give some performance gains for the airflow.
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Old 02-19-2013, 09:53 PM #4
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Lol, like this?
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Originally Posted by inmylife2415 View Post
EDIT: Using a screw on the tip makes it adjustable so that you get a balance between a straight ball stack and keeping the ball close to the bolt to avoid chops.
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Old 02-19-2013, 10:02 PM #5
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Not quite. That doesn't have a tool-less handle, and I'm thinking of a non-adjustable solid cone.
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Old 02-19-2013, 10:06 PM #6
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it would be somewhat expensive with not enough interest, just pay someone to mod your current guide
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Old 02-19-2013, 10:07 PM #7
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I'm in the process of dragging my lazy self off the computer to make essentially one of those for myself one of these days, basically an NDZ LP type guide with that ARB/flow control tip for my Hybrid guide's back cap. Buy like inmylife said, I don't have nearly enough time or overhead to do a run of full guides.
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Old 02-19-2013, 10:09 PM #8
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modding your guide is soooo much cheaper like jimmy said.

you'd have to either find someone with a mill and fund the cost of labor and material or design it yourself and put up a decent amount of money and outsource the labor at a random mill.
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Old 02-19-2013, 10:40 PM #9
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the arb can be made into cone easily, I just use the screw because i'm lazy and don't want to chamfer.

The back of a stock guide could be modded for tool-less also. there is lots of material to cut
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Old 02-20-2013, 02:29 PM #10
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To me a cone shaped arb wouldn't save as much air. I mean one of the benefits of an arb is to take up some of the space between the ball and the tip of the guide to save energy and air. If you take down the diameter of any of the arb then it won't take up as much space and won't be as effective for saving air. Other than that though I would like to see it myself even though I put an arb on my guides myself.
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Old 02-20-2013, 05:34 PM #11
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I was under the impression that just going for pure volume in an ARB isn't as beneficial as one that also directs the flow of air better, even if it doesn't take up as much volume as the other one.
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Old 02-20-2013, 06:44 PM #12
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why would an arb make any difference in volume?
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Old 02-20-2013, 06:55 PM #13
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Not talking about the volume you shoot from
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Old 02-20-2013, 08:11 PM #14
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There is air wasted on every shot because the bolt pushes the ball forward and there is an empty gap of space between the ball and the tip of the guide. That air can be cut down by filling that empty space with an arb. As for it being more beneficial to direct air flow I wouldn't think that would matter much since there would still be a gap between the tip of the arb and the ball when the ball is fired. Because of this there would be empty room for the air to disperse behind the ball evenly. I could be wrong though. Just kinda how I was thinking it would work.
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Old 02-20-2013, 08:13 PM #15
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It's about how much volume you can take up between the valve and paintball. Space you take away from the expanding air before it hits the paintball will increase the efficiency.

With that said, I believe the merits of a better flowing ARB, like what's on the 4B kit outweigh the merits of a pure devolumizer ARB. It's not so much about the air dispersing, it can do that just fine with a normal guide or one with an ARB. The point of the cone is to reduce that flat front edge on the ARB, basically making the transition between valve and paintball smoother, as well as taking up some volume. If volume was the key, then they could have just made a big cylinder on the end of the 4B guide, but they did the cone because the resultant flow of air was more beneficial.




*Edit - Just did a quick job on the lathe, and didn't want to double post. I'm going to hit it up for some slots to complete the NDZ style LP part of the guide tomorrow, then I'm going to lop off the guide part on the back cap, and attach it to the back cap much like how ccluff2's homemade adjustable guide fits the guide and backcap together.

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Old 02-21-2013, 08:02 AM #16
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Looks nice!
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Old 02-21-2013, 12:31 PM #17
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Can't wait to see when its done!
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Old 02-21-2013, 01:25 PM #18
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Andrew, i live in Clovis Calif. PM me if you need a tester.

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Old 02-21-2013, 02:06 PM #19
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Hey Hey now Andrew, I'm in SOCO, I'll be glad to test too(maybe buy a complete one when your done) =) Especially if it can have the NDZ style tool-less grip.
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Old 02-21-2013, 02:11 PM #20
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Hey Andrew, I live in Georgia, also let me know if you need another tester
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Old 02-21-2013, 02:51 PM #21
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Quote:
Originally Posted by AndrewTheWookie View Post
It's about how much volume you can take up between the valve and paintball. Space you take away from the expanding air before it hits the paintball will increase the efficiency.

With that said, I believe the merits of a better flowing ARB, like what's on the 4B kit outweigh the merits of a pure devolumizer ARB. It's not so much about the air dispersing, it can do that just fine with a normal guide or one with an ARB. The point of the cone is to reduce that flat front edge on the ARB, basically making the transition between valve and paintball smoother, as well as taking up some volume. If volume was the key, then they could have just made a big cylinder on the end of the 4B guide, but they did the cone because the resultant flow of air was more beneficial.





*Edit - Just did a quick job on the lathe, and didn't want to double post. I'm going to hit it up for some slots to complete the NDZ style LP part of the guide tomorrow, then I'm going to lop off the guide part on the back cap, and attach it to the back cap much like how ccluff2's homemade adjustable guide fits the guide and backcap together.

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