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Barrell Mod?

How much is too much?

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#1 munson20

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Posted 19 March 2006 - 08:10 PM

Hello, I recently aprehended a crossbow, and I have been meaning to mod it; However, I am not sure the correct barrell length. Please have discussions on the right size for guns you have modded! this can help new modders... Also, what is the right glue for securing the barrell into a perfectly straight barrell?
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#2 Sixo

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Posted 19 March 2006 - 08:12 PM

You might want to check out the Crossbow mod that is featured on the "Mods" page of this site. See what you think, and if you have any more questions, just ask-


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#3 munson20

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Posted 19 March 2006 - 08:15 PM

I tried however i couldn't find where he had his barrell length and the one shown in the pictures is way too short for my liking. Also, is 1/2 inch pvc good because it seems too big for micro darts.
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In war, one death is a tragedy, a million deaths is a statistic...

I know not what WWIII wil be fought with; however, WWIV will be fought with sticks and stones...

#4 NerfMonkey

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Posted 19 March 2006 - 08:21 PM

What is wrong with you? READ the damn mod before you ask for help.

Your gun is now ready, but you'll need a barrel. Because of the 1/2" coupler, you'll be able to put on any variety of barrels via 1/2" PVC. The barrel that I chose to use, because it suits my darts the best is a 3 sectioned telescoping brass barrel. To make the barrel, take 10" of 1/2" sch. 80 PVC, place inside of that 12" of 9/16" inch brass. The brass should stick 3 inches out of the back (the distance from coupler to coupler, not a coincidence) inside of the 12" brass section is a 6" piece of 17/32" brass. This should stick out the back of the 9/16" about 1/8" of an inch, as little as possible.


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#5 Black Wrath

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Posted 19 March 2006 - 09:12 PM

I tried however i couldn't find where he had his barrell length and the one shown in the pictures is way too short for my liking. Also, is 1/2 inch pvc good because it seems too big for micro darts.

12" is stamped all over that mod, as NerfMonkey pointed out. 12" is NOT too short; your liking is just stupid.

As for the 1/2" PVC, if you read even further, you'd see that it's just a sheath. The mod calls for 12" of 9/16ths brass INSIDE the 1/2" PVC. This means that it's just protecting the brass, which is a good fit for micros, and it also acts as a connector between the barrel and gun through the use of a PVC coupler.

Wow.

Was it really that hard?
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#6 bizket12

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Posted 20 March 2006 - 05:13 PM

nevermind

Edited by bizket12, 20 March 2006 - 08:43 PM.

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#7 Black Wrath

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Posted 20 March 2006 - 05:16 PM

Maybe its just me, but how is 9/16 brass going to fit inside 1/2 PVC...
9/16 is deffinately larger than 1/2, and it doesnt matter whether its inside or outside, because either way, 9/16 is bigger than 1/2.

You're an idiot.

1/2" PVC, not 1/2" CPVC is closer to 5/8" ID where the OD of 9/16ths is just that. Wow, suddenly it's all coming together; the brass fits in the PVC!

Don't believe me? Try it yourself!

Ass.
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#8 GeneralPrimevil

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Posted 20 March 2006 - 07:07 PM

1/2" PVC has an I.D. of about 37/64 of an inch. That is 1/64" over 9/16" for those of you less-mathematically inclined, and that is five? wraps of electrical tape for those of you who have no idea about what I am saying...I've had some oddball pipe before with more of a 19/32" inner, but PVC is supposed to be the same dimensions as steel and iron pipe. CPVC is copper pipe, just for random knowledge's sake.

I have metallic male adapters which go from copper thread to steel thread. I use these in air brake systems and whatnot. Seriously, they go from 3/8" steel to 1/2" copper. I can use them when making PVC guns with CPVC barrels. I might have a 1/2" steel to 1/2" copper bushing somewhere...I'll search for it Wednesday.
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#9 davidbowie

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Posted 20 March 2006 - 07:18 PM

Hello, I recently aprehended a crossbow


So you're saying you arrested an inanimate object?

One of my BIGGEST pet peeves is people who throw around "big" words to sound smart.

The word you wanted was "acquired"
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#10 Carbon

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Posted 20 March 2006 - 08:01 PM

To expand upon what the General was saying...pipe measurements are pretty much just a name by this point. Essentially, old cast-iron pipe was standardized on a half-inch ID. So, all fittings were then based upon that wall thickness. Different materials came along which all had different wall thicknesses, changing the ID. The OD remained the same, though, so same size fittings could still be used. So, you end up with .5" PVC with isn't half inch. Do a quick google if you want to read more, I got that from this site.

Edited by Carbon, 20 March 2006 - 08:02 PM.

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#11 davenelz

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Posted 21 March 2006 - 12:59 AM

Hello, I recently aprehended a crossbow...

Man, that made me laugh.

In memoriam of the South Park episode that is on...

You're one hell of a Darche
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#12 munson20

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Posted 21 March 2006 - 06:56 PM

You guys are dicks, im not as intense at nerfing as you guys so i don't know as much about it. take a chill pill. I just asked a question, thats all, and all of you pounced on it just to make fun of me so fuck you all.
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In war, one death is a tragedy, a million deaths is a statistic...

I know not what WWIII wil be fought with; however, WWIV will be fought with sticks and stones...

#13 NerfMonkey

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Posted 21 March 2006 - 07:02 PM

Actually what I did was trying to help you out, but in an asshole way. Stupidity just annoys me, that's all. The mod writeup explained everything, and you didn't even bother to read it, so I told you to, but oh wait, I used the "D" word! Oh no!

If you're going to try to start something, make sure you don't look like an idiot in the first place, because that's what makes people like me mad.

Asshole.
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#14 leftnut

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Posted 21 March 2006 - 07:09 PM

Ignore all of them, they don't seem to get enough attention in the real world and they try to make themselves feel powerful online.

Just use the piping that you feel fits your darts the best. Micros won't fit snugly in PVC so you will need CPVC or brass depending on how big your darts are. The foam tends to vary for everyone. Just experiment with materials until you find what you want.
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#15 ompa

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Posted 21 March 2006 - 07:25 PM

To secure the barrel: Try plumber's goop or JB weld epoxy. Stuff works wonders for me.

Barrel length: Depends on the tightness of the barrel. If you're going for a super-tight barrel (like a cpvc barrel), you might want to go less than 9'. If you're going with something looser, or a nested barrel, go with something around 12'. I can't give you any exact numbers due to the fact that our darts may be different. But experiment aroud those numbers. Cut the barrel long, then keep cutting down until you think you've reached optimal distance.

Enough with the flaming. Next person that starts flaming will more than likely get their ass suspended.

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#16 TimberwolfCY

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Posted 21 March 2006 - 07:54 PM

My Crossbow's barrel is nested brass, 8 1/8 inches long. Honestly, I think the 12 inch barrels and such are overkill, but I won't truly know until I get a good replacement spring for my Crossbow (hint-hint, if anyone knows where to get one (ie. online) (I've searched everywhere, can't find one) let me know).
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#17 munson20

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Posted 21 March 2006 - 09:28 PM

Thank you Ompa and leftnut for standing up for me.

Back to nerf... i tried epoxy glue, however, you have to wait too long, and this causes me to have a crooked barrell! what did you do step by stepp? does your barrell ever repostion and you have to put it back to the right place? i want to use dart tag bullets... what is the right material for these? one that has a good fit-
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In war, one death is a tragedy, a million deaths is a statistic...

I know not what WWIII wil be fought with; however, WWIV will be fought with sticks and stones...

#18 TimberwolfCY

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Posted 22 March 2006 - 12:00 AM

I would suggest you do a coupler mod, a la Rawray's Crossbow mod, here. When I actually did mine, I used Plumber's Goop to attach the coupler assembly to the chamber. To do this, I'd suggest gluing them per the directions, than using several rubber bands long-ways (parallel with the now-joined chamber and coupler assembly) to keep the connection tight. I then carefully balanced books on top of this, to ensure there was a enough pressure. It's important to properly prime the areas you're gluing as well; it's not enough to rip out the internals and glue them. First, I roughly sanded (say, 50 grain sandpaper) all the edges that were to be joined. I then cut lines on the same areas with a razor. After that I thoroughly washed them and rinsed them with hot water, to ensure there was no dust, dirt, oil, etc., to get in the way of the bond. I then glued them as described above. The whole process (including drying time) probably took 36 hours, but the bond was strong as hell when it was finished. With the coupler mod done I can use a removable barrel to breech-load the darts I fire. Bottom line is, proper modding takes time, but if you take your time and do it right, it will come out right in the end, and all the time and effort spent modding will be worth it. I'd also suggest taking a look at Ragornock's mod on Nerfhq.com, to see how he did it; his method was slightly different, but worthy nonetheless.
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#19 Guhvna

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Posted 05 May 2007 - 02:50 PM

1. I am not flaming in this...

2. I don't see how everyone here has the mindset of making everyone act "mature," but if someone new asks a question they either bitch about how stupid they are (what happened here), or tells them to read other posts. I know it is part of the Code of Conduct or whatever, but if you are going to spend your time doing that, you may as well answer their question.

3. What I think the original question was how much IS to much... Just because somebody else used a certain length doesn't make it optimal. I have been wondering what the best length for a barrel is for a Nite Finder but I am afraid to ask in case I looked over something and I get a bunch of flaming.

EDIT: I am not just trying to bring back an old topic because I didn't realize the day of posting until now, but I actually am wondering about barrel length and this seems like a topic concering that to me...

Edited by Guhvna, 05 May 2007 - 02:51 PM.

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#20 SHADOW HUNTER ALPHA

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Posted 05 May 2007 - 03:03 PM

EDIT: I am not just trying to bring back an old topic because I didn't realize the day of posting until now, but I actually am wondering about barrel length and this seems like a topic concering that to me...

You're an idiot. This topic is over a year dead. If you want to follow a write-up, then use their specs. If you want to experiment, then try different barrel lengths. Otherwise, search, because the answer is right in front of you.
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#21 Guhvna

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Posted 05 May 2007 - 03:13 PM

You are all the ones that say to search for topics, so why is it my fault that when I search, I get an older topic. If we are supposed to search before asking, it shouldn't matter when the last post is.

The answer isn't in front of me. Some people say use a 4" barrel for the NF. Some say less. I have even heard people explain how a 4" barrel isn't using the NF to it's full potential. I have searched, and found some equations to figure out the optimal length. That doesn't really help, though, because it was a picture so I couldn't read it clearly...

Like I said- Just because somebody else did it doesn't mean it is the best. Right now I am trying to use parts of different specs, so I am not necessarily following one step for step.
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#22 SHADOW HUNTER ALPHA

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Posted 05 May 2007 - 03:40 PM

You are all the ones that say to search for topics, so why is it my fault that when I search, I get an older topic. If we are supposed to search before asking, it shouldn't matter when the last post is.

That doesn't mean that you have to post in it. (Now I'll give you another hint. CLICK THE LINK--> Barrels.)
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#23 AJAQ

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Posted 05 May 2007 - 04:01 PM

You are all the ones that say to search for topics, so why is it my fault that when I search, I get an older topic. If we are supposed to search before asking, it shouldn't matter when the last post is.

The answer isn't in front of me. Some people say use a 4" barrel for the NF. Some say less. I have even heard people explain how a 4" barrel isn't using the NF to it's full potential. I have searched, and found some equations to figure out the optimal length. That doesn't really help, though, because it was a picture so I couldn't read it clearly...

Like I said- Just because somebody else did it doesn't mean it is the best. Right now I am trying to use parts of different specs, so I am not necessarily following one step for step.


I would say err on the side of short. the NF works with a short burst of fast-moving, low volume air. That means,
it dissipates rather quickly. Personally, I would say 4" or under. (also note, the ID matters also. If it is a tighter fit, I believe it would work possibly to have a 5". Loose, I would say a 3.5-4 should work just fine.)



You are all the ones that say to search for topics, so why is it my fault that when I search, I get an older topic. If we are supposed to search before asking, it shouldn't matter when the last post is.

That doesn't mean that you have to post in it. (Now I'll give you another hint. CLICK THE LINK--> Barrels.)


Do you really have nothing better to do?

Personally, I would rather have one topic dealing with barrels, than have a mass of them.

Using the same topic seems to be a nicer, more organized way to function. So that when someone actually searches Barrel lengths in the future, they find one, more composed topic, and not 15 scattered ones referring to older topics somewhere else.

But then again, searching the entire site across multiple topics may be appealing to you. To each his own, I guess.

Edited by AJAQ, 05 May 2007 - 04:02 PM.

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#24 Pineapple

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Posted 05 May 2007 - 04:15 PM

I'll say this once.


We do things OUR way here at NerfHaven. No one is twisting anyone's arm to remain here as a member or to post here.

Expect a bit of flames from some of the users who've been around the block a few times. It's in their nature to do so, and the site owners have no objections to the culture of being a little rough around the edges when it comes to digging up months-old (or even years-old) topics.

Many times, the poster of an old topic isn't even active anymore, or mods in question may have changed with materials or techniques in the times following, so digging up an old topic and discussing it is like finding a year-old Big Mac and opening it, then passing it around for everyone to smell. Figuratively, of course.



You all get the drift, I'm sure. We're tough, but fair.

Scratch that.

We're not fair, so tough it out.


Guv, feel free to start a new discussion about barrel lengths and performance. If anyone brings up a flame, the admins will see and deal accordingly. It helps to note that you've searched and only found old topics.


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#25 bigbob

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Posted 05 May 2007 - 09:49 PM

If you used CPVC or possibly 1/2" PETG or Brass you might be able to pull off 13-14" for a small boost in range because it is slightly smaller than the regular 9/16" or 17/32" in diameter. The only problem is that you will have to use thinner darts, too.
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