How to Make a Powerful Coaxial Piston Cannon from Hardware Store Parts
Рет қаралды 2,083,152
This video shows how I make a compact 2" bore air cannon with a coaxial piston valve. To understand how these valves work examine the third animation in the following link:
www.spudfiles.com/forums/piston-valves-explained-visually-t8157.html
I also go into more detail of how these cannons function in a video I made many years ago, showing how to build a smaller version using these same principles:
kzfaq.info/get/bejne/b9Vxhaeq05q7p3k.html
Warning: It is specifically against manufacturer recommendations to use PVC to contain pressurized air. This video is solely for education and entertainment purposes.
The parts used in this cannon are as follows:
(1) 3' length of 3" diameter pressure rated PVC pipe
(1) 3'2" length of 2" diameter pressure rated PVC pipe
(1) 1/2" PVC ball valve (the cannon may benefit from a larger valve, so consider 3/4" or 1" valves and adjust the fittings on the back of the cannon to match)
(1) 1/2" x 2" long threaded PVC pipe nipple
(1) 1 1/2" to 1/2" threaded PVC reducer
(1) 3" to 1 1/2" PVC reducer
(1) 3" PVC coupling
(1) 3" female threaded adapter
(1) 3" male threaded adapter
(1) 3" to 2" PVC flush bushing
(4) 1" long self tapping screws
(1) brass air compressor tank valve
(2) 3" galvanized steel gas vent tee caps (I have not tried it myself, but a hockey puck may also work as a replacement piston according to others)
(1) 3" rubber washer or sheet rubber
(1) 3" tank to bowl rubber gasket
Other supplies and tools needed:
PVC Primer & Cement
Epoxy
Super Glue
TFE Pipe Thread Paste
Coarse and fine Sandpaper
Bench Grinder or Metal Files
Drill & Bits
Bicycle Pump or Air Compressor
Thanks for watching! #NightHawkInLight
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Check out my latest video: "How To View Invisible Air Currents With Lasers"
kzfaq.info/get/bejne/gZ9kdsZjlrGpeXU.html
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@TheKingofRandom 11 жыл бұрын
I enjoyed you video very much! Your video work and editing was superb and I was really impressed by your staging and lighting! Great project!
@Nighthawkinlight 11 жыл бұрын
It's been five years since I last showed a video of a piston cannon, I thought it was about time for an update. Thanks for hanging around so long!
@TheKingofRandom 11 жыл бұрын
Are you also color correcting in your videos? The colors in your environment really pop! It's much prettier than the 2 feet of snow we have here right now. :) lol
@sammyboy2007 Жыл бұрын
Did not think i would find one these old Comments lol.
@hardnachopuppy Жыл бұрын
@@sammyboy2007 back when tkor was actually good
@clecollins2673 8 жыл бұрын
This is an awesome cannon. The key items: #1 look inside the 3" pipe and make sure it is smooth. I got a rough piece. #2 The time consuming part will be the piston and its' seat (the end of the 2" barrel). These must be near perfect. The piston pieces need to be as parallel to each other as possible and the barrel must be cut near perfect. Once your piston is done, cut a piece of sandpaper to fit in it. Use a tiny drop of super glue to hold it to the piston, we will remove that later. Use the piston with the sandpaper and lap the end of the barrel. Mark the end of the barrel with a sharpy and start lapping carefully, lifting and looking at the sharpy mark. Once the mark is totally gone, you should be ok. Remove the paper with a little acetone. Now here is the tricky part. If your flat rubber packing is not very flexible, you will need to do the following. I took some 1/16" or near spongy tool drawer lining and cut that fit the piston. I then took some 1/32" flat rubber packing and glued that to the lining. I then glued that to the piston. Now, remember the drawer lining is porous so you must seal around the edge of the lining with super glue to keep the air from migrating under the seal and blowing out the rubber. One last thing. The less surface area on the seal at the end of the barrel, the better the seal will be. I used a regular old bastard metal file around the barrel to reduce the area in about half. Take your time.
@theCodyReeder 7 жыл бұрын
Ah I get it! its pretty much a very fast acting air valve. That is awesome!
@Nighthawkinlight 7 жыл бұрын
Yes indeed. My next video will be a cabin with a similar and improved valve
@mrtechnophile3483 6 жыл бұрын
NightHawkInLight did you mean cannon?
@stewknoles4790 10 жыл бұрын
Oh my! In my younger days I loved making potato guns. This is a much more complex design but you get an exact firing every time. I used the old can hairspray or engine starting fluid and a Coleman lantern striker. Pretty explosive. Yours looks a lot safer to use. Thanks for the plans. Great video.
@IWouldNeverTroll 10 жыл бұрын
***** How do you use lighter fluid?
@IWouldNeverTroll 10 жыл бұрын
How did you use hair spray?
@IWouldNeverTroll 10 жыл бұрын
***** Can you make a youtube video? It will help alot. I have a project coming up, and I wanna use hair spray, instead of compressed air, to compare them.
@IWouldNeverTroll 10 жыл бұрын
***** "if you blow yourself up im not responsible." Yea... I think I might stick with the compressed air... but thanks!
@VisualBasic6 10 жыл бұрын
Sir, this man is not promoting violance, at all. He is making incredible videos about home-made projects and sometimes, yes they are dangerous. but if you are inteligent enough. you know how to use them and work with them. that is why he still makes them. For our entertainment and fun of making projects. And because im pretty shure he likes making videos and projects too :D. Most of his stuff is awsome. and I have build almost all of them. they are increible. thanks nighthawk !
@electricharmonyac7354 5 жыл бұрын
A couple years ago I built one of these but doubled the length and used a 1.5" barrel diameter. I also used a sprinkler vale as the pressure relief valve. It was..... absolutely rediculas. Horrifyingly powerful and all around an awesome build.
@Nighthawkinlight 11 жыл бұрын
I believe the threads on my fill valve had a leak when I filmed this video. It was an easy enough fix with some thread paste.
@ramirezharrier 10 жыл бұрын
Man, I wish I was still in eigth grade and had time to do this stuff. I loved making the mini potato cannons and such. This looks really cool!
@qkiller 10 жыл бұрын
This would maybe take a weekend to build start to finish, I'm going to try it with my kids
@nick-ff8kk 6 жыл бұрын
in the time you took to watch this video, you could have made a potato cannon
@3035730 6 жыл бұрын
I'm going to try a hockey puck for the valve. 3" diameter, 1" thick hard rubber.
@granola661 5 жыл бұрын
I'm in 11th and how tf do I do this
@scottwillis5434 2 жыл бұрын
@@nick-ff8kk ... IF you had all of the parts and tools on hand, had done it before, ...
@Nighthawkinlight 11 жыл бұрын
I had to visit several hardware stores to find one. They are carried by my local True Value hardware, and also by Tractor Supply Co. They are available online as well.
@darthjeff3 11 жыл бұрын
I really like that you remade this type of cannon again, this one is much builder friendly, especially if you do not have alot of professional tools/dont want to spend alot. cool!
@TheAnnoyingBoss 9 жыл бұрын
im going to give this to my mom when she complains about making mashed potatos
@warchief9035 7 жыл бұрын
Would it work if I added a quick change adapter to the air nozzle so that the cannon could run off standard 12oz co2 cartridges?
@Nighthawkinlight 11 жыл бұрын
Thanks! I'm not sure when I'll make another trap video. I'll have to think up a good one.
@Nighthawkinlight 11 жыл бұрын
Yes, spring operated ball valves can work pretty well.
@TheLegoUglyDoll 10 жыл бұрын
how much did it cost to make?
@jeffgardner8103 10 жыл бұрын
I sure would like to see a cross section veiw of this thing
@Nighthawkinlight 10 жыл бұрын
The video currently on my channel homepage shows a dart gun made with this same type of piston design, but with a transparent air chamber so the piston can be seen moving.
@DialedInDIY 7 жыл бұрын
Very cool... I've been making a bunch of different kinds of PVC cannons, horns & more but none like this. I love the design!
@Nighthawkinlight 11 жыл бұрын
Thank you very much. I just use a $60 umbrella light set with a couple 300 watt equivalent CFL's, all bought from Amazon. Cheap and effective.
@ivanag1398 7 жыл бұрын
For a physics project I have to launch a potato 75m, is the barrel long enough? Would the bike pump pressure be enough to launch it that far without exploding?
@Nighthawkinlight 7 жыл бұрын
Yes, but these cannons can be tricky to get working so it might not be a good choice if you're on a deadline.
@emcjrll5158 6 жыл бұрын
How far can the potato fly?
@imagineaworld 6 жыл бұрын
The-T-in-buffet ive put 110 psi in a modified propane tank on the back of 3 inch rigid pipe with a brass ball valve to control the whole thing. Lets just say it can hit a camel in the blow hole from about 250 yards. Use steel if you want to go above and beyond. Otherwise, youll have to test air pressure and potato size. Barrel length has very little to do with it. Case and point: airsoft. Barrel length has little to no affect on range or accuracy with a blunt projectile. Its a cannon, not a rifle ;)
@ceejayc6502 5 жыл бұрын
@@imagineaworld Bahaha! Now that is more like it. I use a sprinkler valve refitted with a quick release air valve - you can actually aim with it.
@kenvadnais 10 жыл бұрын
I'm having a problem with two parts: 1) grinding off just the lip of the T-Cap evenly 2) after pouring/mixing the epoxy into the 1st T-Cap, I can't get the 2nd T-Cap to sit evenly. Either there's too much epoxy or not enough. Either way, the 2nd T-cap doesn't seem to set even. Do you have any advice?
@Nighthawkinlight 10 жыл бұрын
I used a bench grinder to take off the lip, that worked pretty well. Use more epoxy in the bottom cap and just float the top one on the surface.
@kenvadnais 10 жыл бұрын
NightHawkInLight I used a bench ginder. I picked it up for this project after snips/file and hand grinder left me hanging. After you replying to this, I gave it another try and it worked very well. When you put the epoxy in, do you mix it first, then pour it? "use more epoxy", I put enough in where it oozed out between the pistons. I think this is what caused it to be uneven. How full do you fill the 2nd piston? To the top or a little below? Thanks a lot for your help. This is brilliant.
@Nighthawkinlight 10 жыл бұрын
kenvadnais If the epoxy oozes out you have enough. The epoxy needs to be well mixed, it doesn't matter if it's mixed before or after it's poured so long as it gets done. Try to support the cap level as the epoxy cures and it should turn out fine.
@kenvadnais 10 жыл бұрын
NightHawkInLight Roger that. It's curing now. I'll report tomorrow. Thanks again for your help! I'm using a 4" chamber and 2.5" barrel. It should have a punch. I'm also going to try to use water as a projectile, by loading the compression chamber half-full of water and half of air and filling the barrel with water..Then, apply pressurized water through the fill valve. This should compress the air pocket in the compression chamber and act as a spring when the piston opens. The goal is to get a solid, short stream of water that appears as a clean projectile as it arcs to it's target. :) (I hope) Thanks again for your help.
@Nighthawkinlight 10 жыл бұрын
kenvadnais Be aware that firing that much water is going to provide so much recoil you're very likely not going to be able to hold on to the cannon.
@mr.e7756 10 жыл бұрын
Watched several, quality presentation at a good pace, interesting material, simply above and beyond what one expects. Thank you.
@Nighthawkinlight 10 жыл бұрын
Thanks! Much appreciated
@savabDAE 6 жыл бұрын
I built this last summer for our mass LARP to shoot foam arrows, and had a lot of trouble creating the piston. Hockey pucks (as suggested in the comments) were too heavy, and as I'm living in Europe where the sizes of pipes etc... is different, I couldn't use the setup in the video. I eventually made it with a pipe-endcap and some rubber, but every 30-40 shots, I have to take apart the gun and fix the piston. For some reason the rubber keeps losening, even with epoxy applied. It's an awesome design, and especially if you're into LARP and want to have something that can be made to look like an old-school cannon, this is amazing! But that piston is a pain in the ass to create :D
@ltshortcut 10 жыл бұрын
I'm thinking paintball portable mortar.
@SirEpsidufus 10 жыл бұрын
With whistling rocket... >:D
@thewhitesheep4156 3 жыл бұрын
@@georgecarmona7393 they can either just change the barrel or use wadings
@havokvladimirovichstalinov 3 жыл бұрын
@@thewhitesheep4156 use a couple of paper dixie cups cut down the sides, dont cut the sides off, just cut four slits from the lip of the cup to about an 1/8th inch off and fold the flaps outward. Refold them up, fill with bbs or paintball rounds, and drop them in.
@DennisWilson75 10 жыл бұрын
Brady Johnson you have to see this!
@BradyJohnson 10 жыл бұрын
I will watch it later
@BradyJohnson 10 жыл бұрын
Dennis Wilson that's a sweet potato cannon!!
@gone547 4 жыл бұрын
@@BradyJohnson just use standard potatoes. Sweet potatoes are much more expensive.
@cliftonsnider1520 4 жыл бұрын
Great video. I just have to watch it a few more times to get it straight in my head how it works.
@Nighthawkinlight 4 жыл бұрын
I have several other videos about piston cannons that may help. Do a search on my channel and you'll find them
@Nighthawkinlight 10 жыл бұрын
You can use a sprinkler valve instead of a ball valve and fire it with an electronic trigger, or modify it to operate pneumatically. There are lots of guides for modifying sprinkler valves online that you can use.
@Lucky_Kounna 4 жыл бұрын
I might be using this design for making a mortar for seed bombs to help plant trees
@dftdbs1010 4 жыл бұрын
I am reporting this impostor to our Cyber Crime Division, effective immediately.
@Lucky_Kounna 4 жыл бұрын
@@dftdbs1010 and who do you think you are thinking that you are one of us when you're the imposter
@nekochan1987 10 жыл бұрын
would this work if you put confetti in it instead of potato?
@minecraftserverstuff 9 жыл бұрын
As long as you put enough to plug it airtight but not too tight
@ajpollard8096 7 жыл бұрын
Goldie Neko as long as you use a sabot or fill a little cup that is a snug for with the confetti first.
@Nighthawkinlight 11 жыл бұрын
Also note, when the piston is made as tight a fit as it should be, it may be difficult to push past the chamber opening because it will want to catch on the lip of the pipe. The sharp lip of the 3" pipe inside of the female adapter may need to be sanded down to allow the piston to slide in.
@carldavidson7479 10 жыл бұрын
My grandson made it in two hours. Copied this plan... Awesome!
@franicsjrmontallana7255 9 жыл бұрын
I will report you for Potato Abuse.
@shirleywilliams2815 6 жыл бұрын
wow what a crime I will report you for pocking your nose into other peoples privacy.
@harrykuheim6107 5 жыл бұрын
It's a White Potatoe so no Democrats or Obama will care...
@gabrielleb74 11 жыл бұрын
That is awesome. Fun project to do myself. Thank you for the list of parts.
@austenbunker978 11 жыл бұрын
I love ur videos because u actually give a list of stuff needed u rock keep on creating
@TheWadetube 6 жыл бұрын
Excellent. This is the basis of a nail gun valve, but it is a series of valves that open faster than a ball valve.
@Nighthawkinlight 11 жыл бұрын
I designed the layout and what items parts to use, but cannons made with a coaxial piston design have been around for years. I just tried to make mine as simple and effective as possible.
@Nighthawkinlight 11 жыл бұрын
if you check my old video that I link to in the description i use a similar method to allow the barrel to be able to pass all the way through a bushing so that it can extend on either side of it. In this case you will simply have to adjust the length of the barrel if there is a difference in length of the fittings you use compared to the video.
@windoes98se 10 жыл бұрын
awesome video, clear instructions, device looks very durable
@Nighthawkinlight 11 жыл бұрын
No, I did not have to modify mine. Grinding the lip off will work though, or you can grind out the ridge on the inside that prevents you from feeding a pipe in from the back.
@MagicManFoli 11 жыл бұрын
I didn't thought of that at all :D I'm going to try it right now, thanks for the advice!
@Nighthawkinlight 11 жыл бұрын
Thank you for letting me know
@justin767je 10 жыл бұрын
Thank you for the video! It works great! I just made one and although I did change the piston design everything else works great! Perfectly air tight and is super powerfull! I used a heavy duty soup can that fit perfectly inside the 3in pipe for the piston. The Gas T vent caps didnt want to get air tight for me. I also used a sprinkler valve for pilot. Amazing. Thanks again!
@TopsMiah 7 жыл бұрын
Brilliant video very well explained. Left a massive LIKE
@Anarchy522XD 11 жыл бұрын
You always make interesting and fascinating items your channel was recommended through another I follow saw a vid loved what you do subscribed immediately
@minimean232 11 жыл бұрын
You sir, are the greatest engineer ever.
@lewisdoherty7621 10 жыл бұрын
I love it. I have a good idea where the idea originated. I'm a member of an association that rebuilds and operates antique railway equipment. When I saw your valve and air pressure assembly designed to charge a reservoir and rapidly release it when the air pressure in the charging line was rapidly reduced, I thought Westinghouse Air Brake. Someone thought if such a railroad air brake assembly could apply railway brake shoes with force, it could shoot projectiles.
@LeskiStation 9 жыл бұрын
Amazing tutorial. Very well done
@Tr0al 11 жыл бұрын
Whenever I see Nighthawkinlight has uploaded a new video, I know it's going to be a good day
@khellilg 11 жыл бұрын
No one makes airguns like this guy.
@blakecrayton5491 11 жыл бұрын
I watched your video and tried it and my gun works amazingly well it shoots quite hard as well, but I have to say if I hadn't seen this video I would have not known how to do this at all so creds to you
@Nighthawkinlight 11 жыл бұрын
Yes, but if the barrel were that small the chamber should also be made out of much smaller PVC. In the video description I have a link to an older video I made showing how to make a piston cannon with a 1" diameter barrel.
@Ryguy12543 10 жыл бұрын
this is really cool. I made one myself and it works great.
@kraizy1 11 жыл бұрын
hey man, good to see you are back! been missing your videos
@Nighthawkinlight 11 жыл бұрын
Is the end of the barrel smooth and flat? And the face of the piston? They need to both be very flat so they can seal well against one another. A little pipe thread paste on the rubber face of the piston can help.
@IanKimballDoctorDust 10 жыл бұрын
Exactly where I was headed with it. Many thanks. P.S.: My old 'spray and pray' works fantastic with your home made hydrogen recipe. A tiny bit of catalyst goes a long way!
@stanleydenning 10 жыл бұрын
Best design I have seen yet.
@Nighthawkinlight 11 жыл бұрын
There is a chance I will make a spear and grappling hook gun. I have thought about making those for a while. For now I already have another project lined up for my next video though.
@Nighthawkinlight 11 жыл бұрын
That is a common issue. It can be resolved by making the piston a tighter fit within the chamber. This will cause the air behind the piston to be released faster than air can leak around from the front of the chamber, creating enough of a pressure differential to slide the piston back and break the seal against the barrel. Opening the ball valve in as quick a motion as possible will also help. The amount that your piston can travel is perfect.
@Nighthawkinlight 11 жыл бұрын
Lumix GH-2. I love it.
@ZlGZ4G 11 жыл бұрын
And you have done an excellent job at that.
@mikes1031 4 жыл бұрын
I think I just found, how I am going to shoot my ham radio antenna support lines, over 60 foot and taller trees. Thanks for the great video.
@Nighthawkinlight 11 жыл бұрын
I believe tennis balls need 2.5" pipe, which is not commonly available but can be ordered online. The barrel would then not leave enough room in the 3" chamber for air, so the chamber would also have to be upgraded to 4" pipe.
@Nighthawkinlight 10 жыл бұрын
1/2" of piston movement is about right for this barrel size. If you have a lathe there are better options. You can turn a piston and give it an O ring for a perfect seal, and make a one way valve in it that will only allow air to pass when filling the chamber but be closed upon firing. A hole under a rubber flap. Keep the piston light weight by cutting some material out of the center if you're using rod stock so it can accelerate quickly and you're in business. That would be the ideal design.
@manEboh 11 жыл бұрын
honestly don't remember subscribing to you but this is pretty sick
@myvideos8315 5 жыл бұрын
Hello all! I would like to add to this KZfaq thread that I built one of these Cannon’s and it works flawlessly! I have a machine shop and built the cannon to tight tolerances. I made the piston out of two pieces of 3/8 acrylic, glued them together and fitted the piston by hand sanding the outside to fit the chamber closely to minimize air leaking past. I turned a radius on the end of the barrel where it seals against the rubber pad glued to the piston. With 80/90 psi I get about 275 to 300 feet per second (Checked with a Chronograph). I can interchange 2 barrels, one 1.5 and a 2 inch. The 1.5 is optimum because you can fire golf balls as well. My buddies and I are like little kids playing around with this cannon. To those that want to build one remember that this thing is deadly and can do some serious damage to what ever is in the projectiles path! #Fartapolooza
@Nighthawkinlight 5 жыл бұрын
I always wished I had a lathe when I was building these cannons as a kid.
@Nighthawkinlight 11 жыл бұрын
That is water vapor condensing out of the air that rapidly drops pressure as it is released from the cannon, it was pressurized with a bike pump.
@rcdude29 11 жыл бұрын
Finally, another good video from Nighthawk! I just LOVE your videos, particularly the pyrotechnical one :)))))))))
@Nighthawkinlight 11 жыл бұрын
I'll look into it.
@havokvladimirovichstalinov 3 жыл бұрын
I completely forgot this was your channel. I found this video years before I subscribed and never put two and two together
@Nighthawkinlight 11 жыл бұрын
What do you mean sit tightly? Does air leak out of the barrel when you fill it?
@Nighthawkinlight 11 жыл бұрын
Yes, I am a little bit, but it was a great day to film in general. The opening to the video was filmed several weeks ago when the snow melted for a day. It's back to typical winter here now.
@Nighthawkinlight 11 жыл бұрын
Don't worry if the threads don't screw in flush. Don't force it too hard or the female fitting may break. Is the rubber face on the piston smooth? I can't imagine enough smooth rubber surface on a bike tire to cover the whole piston. If it's not sealing properly you can apply some TFE thread paste to the rubber and that will make it seal much better.
@Nighthawkinlight 11 жыл бұрын
Yeah I would have liked to use one, but that would have required a longer video and a more expensive project overall. Perhaps I will make a followup to show how to modify this cannon.
@Nighthawkinlight 11 жыл бұрын
I wish it were that simple. Right now I do have two videos in the works, an airsoft sniper rifle and exploding airgun targets, but there's too much snow and sleet outside for me to finish filming until I get a few clear days.
@Nighthawkinlight 11 жыл бұрын
I would suggest calling first. They can also be ordered online for quite cheap.
@ramcysmerdor1289 8 жыл бұрын
definitely adding this to my arsenal
@cdrobson 9 жыл бұрын
Love the thought that went into the design. Really cool. Where'd you come up with the coaxial design?
@Nighthawkinlight 11 жыл бұрын
Home Depot. It is strange, I am having a hard time finding the precise fitting I used in the video when I search online. If you cannot find the specific one I use, you can instead use any 3x2 reducer or bushing. The only issue you will have in doing so is that you will probably not be able to flip it around backwards into a coupling like i do, so the ridge on the inside that stops the pipe from being fed in through the back side of the reducer will have to be sanded down.
@daviddyson7448 10 жыл бұрын
If you want to use it for a bunch of small projectiles like airsoft balls, most hardware or home improvement stores sell these cheap plastic caps that are designed to protect the ends of threaded pipes in transit, by cutting off the flange so it will fit in the barrel you have a perfect container to launch just about anything that will fit in it
@0paulk 11 жыл бұрын
nice to see a new video from you
@Nighthawkinlight 11 жыл бұрын
Working on it now.
@Nighthawkinlight 11 жыл бұрын
Amazon is fine. Otherwise you may find them at hardware stores near the other air compressor fittings.
@Oinikis 11 жыл бұрын
that piston super-fats opening mechanism is awesome. but i saw one dude made an air rifle, with walve, between the barrel and the tank, whitch was super fast opened with compresed spring, also the spring starts it open it only when it gained speed, so that might be less complicated, but still, very smart method.
@tacotim6434 10 жыл бұрын
WOW nice job. I'm a new subscriber and I am definitely making this gun! Thanks for the link (the first one dose not work). My dad had one when he was a kid and he shot lemons and tomatoes in the Disney Land parking lot.
@SAMSTRECKER 11 жыл бұрын
I love your videos the only thing I want is MORE!
@Nighthawkinlight 11 жыл бұрын
The cannon does not leak air by design at all. It holds pressure just as long as a sprinkler valve or any other system.
@Nighthawkinlight 11 жыл бұрын
Not from a distance because the pressure disperses shortly after it leaves the barrel, but if you hold your hand over the empty gun (don't try this! always assume the gun is loaded!) the air impact does feel like someone punching you quite hard in the hand.
@lordmattreeno650 7 жыл бұрын
cheers dude i watched this to make me feel tired..... success :)
@chrispyclean586 8 жыл бұрын
hey nighthalkinlight, this is my first time building A spud gun and I looked around f I r a while before I thought that your design was the coolest but i have a few questions. While building the cannon i had accidentally attatched the 3" Coupling to the 3" pipe before installing the rubber toilet bumper in between them. I don't think it would have caused an issue with the piston but I'm not sure. Would it? I've just finished building the cannon but while filling the chamber with air, I can feel air leak down the 1" diameter Barrel. I thought the piston wasn't seated properly on the 1" pipe and I've tried to double up the rubber on the piston. After that didn't work I put a cork sheet on top of that but the air still leaks. I've sanded the end of the 1" pipe pipe flat and im wondering if it would be a good idea to cut the 3' 2" barrel down to 3' 1" or 3' or less? I'm also wondering if there is another material I can use to provide an airtight seal or if is there another piston design I could use. Thank you ahead of time and I'm open to any suggestions. I'm really exited to shoo this cannon.
@adrienperie6119 11 жыл бұрын
In french its actually pronounced aluminium, and maybie in the uk too i'm not sure, what i'm pretty sure of is that there is no relation whatsoever between the ium at the end of elements and their radioactivity. Glad you make views by sharing your practical knowledge, this is the beauty of youtube to me, good continuation.
@Nighthawkinlight 11 жыл бұрын
What do you mean your male and female adapters are different? Do you mean the bushing? A reducer will work to replace the bushing. You may just have to extend the barrel to make up for the extra distance it will be forward in the reducer.
@Nighthawkinlight 11 жыл бұрын
Everything will melt. What temperature does it need to be good to? CPVC will resist slightly higher temps than PVC, otherwise your only options are metal. Copper, steel, aluminum.
@reyrobles1323 5 жыл бұрын
I like your design.
@SKK329 11 жыл бұрын
Yayy glad to see more videos from you. I didn't know you were partnered with Machinima. Interesting,
@Nighthawkinlight 11 жыл бұрын
My name's Ben. I have a few videos in the works but I have a lot of other work taking up my time as well. Sooner than the last one in any case.
@Nighthawkinlight 11 жыл бұрын
Be sure to watch in 1080p! I read all comments so leave some feedback!
@Nighthawkinlight 11 жыл бұрын
About 50. I've never worn one out, but the piston sometimes needs greasing.
@Discitus 11 жыл бұрын
I'm working on a coaxial piston gun inspired by this video. It is lower power, smaller bore, and a simpler design. I need to refine the design, but I think it will work...
@Chloroxite 11 жыл бұрын
This guy probably has a Nobel prize.