NightHawkInLight - 2017-03-18
Knowing how to make an air tight piston for use in PVC pipe is useful for so many projects that I decided I should have a single video that can be referenced about how to make them. Using 1 1/4" PVC fittings you can make a piston for 2" pipe, with 3" fittings a piston can be made for 4" pipe, and though I did not mention it in the video, a piston for 1" pipe can be made using 3/4" fittings. I'll be putting these to use quite soon in upcoming projects. If you are not one of my Patreon supporters and would like to help my channel to improve check out my page and please consider contributing here: https://www.patreon.com/NightHawkProjects Special thanks to my top Patrons! Syniurge, Matthew Leitzke, & TheBackyardScientist! Thanks for watching!
1:37 Would you happen to know what the o-ring’s ID and OD measurements for the 3-in piston/pipe are?
I watched this video two years ago, remembered it, and revisited it for help for an engine project I’m doing now. You helped me create a vision then, and you’re helping me finish now. Thanks dude 🤙
"Thanks for watching" keep your stick in the ice
Love it. I've always struggled with the piston when making a pump.
absolutely beautiful video as always! 👍 keep up with the high grade content ^^
Thanks!
Hello,
I was recently wondering if PVC could be used to make a cartridge that stores compressed air, similar to that of CO2 cartridges. I was thinking one end could be flat and sealed off, and the other could have an PVC with a valve/switch to open and release the air all at once to make preloaded ammunition. I think it is possible to make a bolt action cannon with this, or at least something similar to a Milkor grenade launcher.
I've been wanting to build a PVC vacuum pump for ages, but at the moment, I've got no reliable way to cut an even groove. This is exactly the video I needed. Cheers!
Exactly what I was looking for. Thanks.
I see a QEV cannon coming up :)
I'm gonna love it
I have struggled with that exact problem! The O-ring was a great idea. That really helps me out!
0:55 Nice thumb man.
Thanks. I'm learning a lot from your videos. Have you experimented with making a piston for 1 1/2 PVC, for use with a ping-pong ball?
For 1 1/2" you have to find something other than pvc parts. None fit right. You can use a lathe or a drill and a hole saw to cut plugs of the right size
I've loved watching your videos for quite a while!
Hmmmm, neat. I wonder if an easy/cheap fire piston could be made from small CPVC pipe in the same way.....
Loved it! Previous design was good, but you're right in that this one is even better for those of us without lathes.
It's these types of videos that are both of great use and entertainment, and why I will always come back to your videos
Thanks I actouly need this for an upcoming project I want to do
Could you make a bolt-action air soft rifle
John Smith or you could just buy one that's way better than you could make
John Smith id like to see that. Can't buy them where I live
+Spyder Most airguns are powered by spring, meaning the whole force come from the spring itself (and a good compression chamber). The rest is just cosmetic. You can easily make an airgun out of pvc, you don't need metal for airguns, a rifled barrel, a good compression chamber and a good spring is all you need.
good luck making something that sturdy and good looking with functional magazines and safeties
I would like to know please the tickness of the O ring and if possible you can provide a link on ebay. Thanks
Pls make a free piston stirling engine!
Literally in Lowes now with pipes and fittings in my cart only to dig a little deeper and find out I can’t get the right size orings here. 😭
"no views" 4 likes
That "upcoming video" looks crazy cool 😎
So... this is what it feels to be early?
woah!
This video was far from uninteresting, I was trying to figure a way to get rid of all that filing but this just solved my problem! The timing of this video was impecable
Oh man I can't wait to see that cannon video.
Sweet tip. I will be using this for sure. Thanks!
"Ho-Kay"?
I have seen a lot of youtubers, but you are the only one with not ONE single video i dislike! Keep up the good work!
How's the isolating alkali metals going?
Maybe you should try making the alkaline earths, since they're probably going to be less of a pain.
I haven't messed with them in a while. My first two alkali metal videos didn't get enough views to pay for themselves and I can't afford to make more right now
we'll wait, we'll see
I want to make a small excavator for a kid. I was thinking of making tubes similar to this and fill with water to give a feeling of hydraulics. I saw a similar idea for a smaller project in a video that uses a syringe at each end of a hose to get a back and forward motion.
Great idea!
Great video on a classic maker hack!
NightHawkInLight I think kingrandom has a vid like this for one of his projects
I did a quick little search on the Spudtech forum archives and found this post from 2006: http://www.spudfiles.com/spudtech_archive/viewtopic.php?p=143658#p143658 , but I remember seeing it pop up a few times earlier than that. I used it myself in ~2009. It's a good way to make pistons... better than using duct tape and petroeum jelly in any case. :D
Forgot to include the link to mine: https://www.spudstalker.ninja/images/big/piston/143kni8.jpg
Cool, that's the first I've seen of someone else using the same method. I don't use a piston face though, I've got another trick for that I'll get into in my air cannon video.
I'll be interested to see it. :)
i love your content and would love to see you make a macro lens to photograph the iris
cheers lachlan
Hey, I’m looking for that o-ring, but I can’t seem to find it. Where did you buy your’s? Greetings Skye.
Great alternative. I have been using a hot glue piston with a neoprene seal and had crap results
This is great. I made one of these pistons myself, last year, using 1/2" PVC, I don't remember the size of the ring though. Unfortunately the Airsoft gun I was trying to make, didn't work due to other reasons, including a bad spring, so I never got the chance to see if the pistons actually worked! Good to know they do! I'll revisit my project in the future, with some better equipment then what I had.
was i subscriber since the start. glad your back at again.
first view wow
Nighthawkinlight do you think it would be possible to make a pvc internal combustion engine fueled by alcohol? I've been sitting on that idea for a while but haven't tried it yet.
It would quickly melt
Was that a QEV on your spud gun?
Yep, barrel sealing piston valve using the same piston I made in this video.
Way simpler that any other designs I have seen. Can't wait!
Hey Ben, we create videos on science and for one of the videos, we require a customizable sand timer. A sand timer with a regulator attached to it's neck which can control the diameter of the neck so that the clock can be used to measure varying intervals of time. Please design such a thing and tell us the idea.
Definitely a much easier way to make pistons. A great discovery.
What 🤤
Can you take some measurement? How long will vacuum hold?
Its suprising that you have 1Mil subs and only 3k viws in 1h
dude you're so awesome
Thanks!
I have made a Cannon like the one in your video and it's a lot of fun. but I use a air compressor to use it. love the video
Very effective tip that saves a lot of time!
Great video. I think I will try making a vacuum pump with it.
sasja de vries. - 2017-03-18
0:20 Did I just see a portable vaccuum canon with a ballvalve in stead of aluminium foil?
NightHawkInLight - 2017-03-18
That's not a vacuum cannon, but I do have a very simple vacuum cannon design using this piston that I'll be working on shortly.
Qubicx - 2017-03-19
Probably a coaxial piston cannon, which he already did a video on
EDIT: apparently it is a QEV based design which basically works the same way a coaxial piston cannon.