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Hello again. Here I am with my 5th entry to the "Toy Rods and Connecters Contest," a K'NEX gun I named "Rate of Fire" (ROF). I built this gun for two reasons:
1) I wanted a gun that I could run as many rounds through it as I wanted without worrying about it jamming, and
2) I wanted a gun with a great rate of fire = how many bullets can leave the barrel per-second.
What got me started on a ROF gun was Sharir1701's REMPAR. Seeing him shoot off all of those in that amount of time shocked me, and I was like "dad-gum-it, that is awesome!"

With all of that said, I present to you my K'NEX gun: Rate of Fire. It kinda reminds me of a mix of a Magpul PDR and Sharir1701's S1. It has a rate of fire that can empty one mag (7 bullets) in less than 3 seconds. I have not done a full range test yet, but it probably gets at least 40 ft, if not 60 - 70 ft. This is technically a second attempt at my "The TUB."

Features:
  • Great rate of fire: 2.3 bullets per second (7 rounds per 2 seconds)
  • Good range: at least 40 ft.
  • Comfortable
  • Cheek rest (see pic #5)
  • Easy to charge, even with two bands (I only have one in the pics)
  • Nice body (IMO)
  • Nice looking sights





-The Red Book of Westmarch
I love this gun. Boom. Mind. Blown.
Even though I haven't built it. I am going to go on a big gun building spree when I destroy my ball machine
This gun is quite bad.
And yet it got featured, 95% of K'NEXers like it, and it works great.
Dont listen to him, he is just your usual f**k head member off KI!
I know, I'm not listening to him. <a href="https://www.instructables.com/community/Some-Videos-I-think-You-Guys-Should-See/" rel="nofollow">Careful bro</a> (see video #4 on that link), before you hurt your self. XD
LOL xD
Because 95% of people don't understand why its bad. And it got featured because you took pretty pictures, not because of how good it is.
No, because 95% of people aren't jealous that it got featured, and it did not get featured because I took pretty pictures, it got featured because somebody at 'ibles liked it.
Looks good. Can you explain to me the magazine some more? Like, how are the rods advanced after each round?
Thanks man. Well, the rubber bands push the &quot;pusher&quot; up and this pushes each bullet into a position to fire it. I don't know if I am making my self clear...
That makes sense. The firing and reloading of these guns is fascinating and I'd love to see a straight-up detail explaining how it works.
I could provide some pics, and a video...
It would help those of us that aren't quite as experienced. I think a separate Instructable just explaining the mechanics is something that would be really beneficial. <br /> <br />There's very basic K'NEX guns, and some very advanced ones; but I don't see any documentation explaining how they work. You pro gun-builders are on another level and maybe take these complexities for granted. I'd love to see a detailed Step-by-Step that covers triggers, magazines, reloading, firing mechanism, bi/tripods, elastic types, and all other manner of accessories. <br /> <br />I'll throw down a 1-year membership and a freshly designed digital patch to the first who can make a comprehensive Step-by-Step showing me exactly how K'NEX gun mechanics work using the elements I listed as a guide.
<a href="https://www.instructables.com/id/How-to-make-a-great-Knex-weapon-Instructable/" rel="nofollow">It was already done, 6 years ago</a>
Has the method and style of construction not changed since that was written?
The basic mechanisms and triggers outlined in that instructable have not changed in the slightest. There may be new variations and new components that have been invented since then like turrets, but the core concept of a pin striking the ammo, or the ammo being slingshotted out of a gun have not changed since the inception of knex guns in 2006. Neither has the classic magazine mechanism where ammo gets pushed up into the barrel changed, there's just been many different ways people construct that same push-up magazine, either to accommodate different ammo types or for cosmetic reasons. Hoppers are kind of going out of style though to be honest. <br> <br>If I were to look at recent gun designs barring some bizarre new experimental concept gun, most would either feature a tube barrel, or a square barrel in the case of magazine fed guns. Some mag fed guns even have a tube barrel, thanks to the advent of iPod Killer's sniper in 2007. <br> <br>The short version: There may be many different new variants on magazines, triggers, and mechanisms, but the way each of them work at their core is still exactly the same.
So, you're saying that there's not room for an updated Instructable detailing how K'NEX guns work? I disagree. Though the information might be similar, I think the sophistication of the weapons I've seen has increased and there is a need to share basic information for new readers. <br /> <br />I think things can always be presented again in a fresh clear way and there's no harm in a new approach on that topic, especially if it's by a different author. <br />Luckily, 2 other members have already risen to that challenge.
I agree there's been lots of improvement and change since that guide has been posted, and weapons have gotten much more advanced. However, I think this guide would give newcomers a good understanding on how mechanisms work on the most basic level, despite it's 6 year age. <br> <br>I also agree though that a new, updated guide could be in order, preferably one with physics explaining what makes a more powerful build and maybe insight as to why the best guns are the most reliable and powerful.
I think I will split up what you said into two categories, and make them two different 'ibes. The first one will be all about the gun its self, anything from different kids of guns to their particular mechs. The second being different accessories, grenade launchers, sights, things of that sort. TAD and I are planning on working on it together.
I will add another video, and some pics of the internals, but I am not sure if I want to to another instructable just to do it.
I'll definitely take you up on that offer. :D Have been working on it for a while now.
So let me get this straight, all of the thing you mentioned in one epic ible'?! Hmmmm that would be a lot of work.
A rod with a rubberband pushing it up constantly pushes up a new round into firing position once the current round has been fired.
Exactly. What he said.
Looks amazingly smooth!
Thanks bro, could you give my stuff some votes in the contest?
Looks alright. I'm not sure yet, got to make a gun for KILLERK's knex war, but I aiming at shooting larger ammo. Just so I can find it in the grass easier. I may use your design though.
Are you gonna go to K'NEX War 2013? Sounds so awesome... Go ahead and use my design, and I'd love to see it when it is finished. Sounds awesome.
Well I may use some design off of it. I'm trying to go to war with a semi-automatic gun, but I'm still deciding. It's harder than I though to build a war gun that you can see yourself using.
Yeah, that sounds tough.
Yep, still thinking about it. Going to try to build something else here, and unfortunately I've thrown in the towel on Thunderbolt. Just to much stuff going on. I may post a blueprint though if you want to see what tree I was barking up.
What?!?! You are giving up on the Thunderbolt! No! Why? I would love to see blueprints/internal pictures!
Well I gave up because after a few tries and no success I'd really rather focus on something that works. I spent well over a week using all my free time on this thing so I just feel that I needed to move on. Here's the blue print though I think it would work given the right knowledge and time.
Ah, I can understand that. Thanks for the blue print, I read it, and you did a great job explaining it.
Thanks! I thought it might be confusing, and to be perfectly honest I wasn't even sure if it was true bolt action either. If anything it's kind of like a mag loaded breach rifle. kinda anyway =P
Yeah, its kinda just what people want to call it that matters. =D
Awesome
Thanks man. =D
Np =D
Voted
Yay!
Congratz again bro! =D
Thanks bro, means a lot.
Could someone make a flintlock pistol with relatively few parts? I've got a hidden blade (thanks to Raz1r knex Bull3t) and a tomohawk (also Raz1r ;)), but no pistol. I'm a huge AC3 fan sooooooo......yeah. Anyone ???
I would really like to try one, although, I am not sure how I would accomplish it.
Nice, and congrats for being featured again :D
Thanks for the congratulations, and I am glad you like it. =D
The handle seems a bit slanted, but I guess it makes this gun stand out. I never liked bolt actions, really, and I swear: I am practically the only guy that prefers turrets. If I ever go pro, I'm making a K'nex Turret Club to see if anyone prefers them like I do. For some reason, I doubt it. :3 Forever alone...
XD, this is not a bolt action. It is simply a pin gun that has a high ROF. I don't know weather I like turreted guns or not, because I have never really go into them, but they are fine guns all the same.

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Bio: K'NEX gun builder here at Instructables. More or less retired from the community, but I still pop in now and again.
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