 This is a vacuum pump and as the dad joke goes this really sucks. Oh God, that's so bad. It allows us to remove air and other gases from each space to create a vacuum And if you wait for the end of the video You're gonna see that we make our own vacuum chamber throw some things inside and see what happens to them I bet it's not what you think if you enjoy these type of informative breakdowns Do me a favor and like the video and subscribe to the channel to let the algorithm know that you enjoy seeing these kind Of things 96% of viewers don't get notified and are not subscribed to the channel So the chances of them saying cool stuff like this is very low So let's change that as I mentioned before a vacuum pump is a compact device that works by pulling air out of a sealed space To create a vacuum in this case a vacuum is not it like a vacuum cleaner It's a literal vacuum, which just means that one area has less pressure than the other an example where we constantly see this Is with vacuum sealed bags or vacuum sealed containers, you know Usually you have like a tomato can or something and you open it up and you hear that loud sound of air rushing in That's because inside the container they remove the air and remove at least oxygen the things that let bacteria grow And create a vacuum sealed container and to do that they need something like our trusty old vacuum pump In our case the vacuum pump has a 12 volt motor which is connected to the vacuum pump like Contraption piece over here so motor and then vacuum pump when you connect the motor to a power source The motor starts spinning and then inside the pump There's usually a rotor with veins or an impeller as the motor turns the rotor inside of here The blades spin and push air from inside the pump chamber towards the exhaust port So here we could see we have air in and then air out So the idea would be that it's sucking air in through here and releasing it out through there And then it has a piece in here that stops the flow going backward Which is what allows us to build up vacuum pressure over time or negative pressure I should say the cool thing about a small pump like this and relatively low power is that you can use it in a lot of DIY projects like robotics where you want to create let's say a suction arm grabber that you know Goes over something sucks the air under it and then picks it up and moves it somewhere else You would use something like this for that or just normal like vacuum sealing machines They have a really small version of this and they just suck all the air out of the vacuum bag And then it gets sealed with glue or some some sort of material One thing I would love to see and please let me know in the comments if you want to see this too Is I have a robot arm that I would love to build and then put one of these on there And have the robot arm pick up things and move them from one place to another It would definitely be a big project so I have to see if this video does well And if there's any interest around the vacuum pump itself before I make a project that big For the demo we're going to need a couple things to get started We're going to need the vacuum pump, some tubing, an electronic relay, a 12 volt power supply A microcontroller we're going to be going with an Arduino And if you want to make your life a little bit easier you can get some different crimp connectors Some glue and a glass container like this one for later on will we make our vacuum chamber Oh and a balloon or a empty water bottle would be good To start off we're going to do a couple different things We're going to connect our power supply to an outlet We're going to be connecting the power supply to a relay and then from the relay to our And then we're going to run these tubes on the in and out of the vacuum pump And one of those tubes into this water bottle right here We want the one that sucks air so in my case it's the bottom one here To be the one connected to the bottle so that it sucks all the air from inside the bottle out If you're not sure what happens I think you're going to find this super interesting Then just connect the relay to the microcontroller like we always do If you want to learn how relays work, how the code behind them works, all that I've made multiple videos about them before I'll link them all in the description below For the power supply we just have a crimp connector and our positive wire exposed over here That's because this positive wire will be going into our relay in the middle Comport and then our negative will be going directly on our little pin right here Left marked red is power and then ground Now we have our power supply positive going through the relay to the pump And negative going directly to the pump So the relay will be acting as a switch between our pump and the power supply If you didn't want to do the electronics and the code All you have to do is skip everything from here to the demo By just putting a switch instead of a relay For the relay as always we're going to run three pins One for signal, one for positive and one for ground And those are going to go The signal pin is going to go into port number two The positive is going to go into five volt And the negative is going to go into ground So technically now we can operate our pump by using the microcontroller and the relay But there's one last step I want to add since this is a video And you can't sit here and interact and smell and feel all the things that are happening We're going to be using a water bottle for a physical demonstration Of what's happening using our vacuum pump I want to make a hole in this water bottle and then stick this tube inside And maybe glue around a little bit to make sure it's a nice and tight sealed fit And then you don't have to do this but I'm just going to put one tube on that On the exhaust port and I'm just going to put it out there So now we just take our bottle here I'm going to connect it to our pump So what so air should be coming from the bottle into pump pump out to the exhaust port over here One thing I'd like to do as well is take this balloon and put it on the exhaust port and see what happens See how when I push air out of the bottle it now starts to fill our balloon And when I try to push air from the balloon it does not want to go back Into the bottle because of that one-way valve in there Since we've done so many videos on relays and how they work before We're just going to copy paste this because you should be a professional now And we're just going to change this to pin number two because that's the one we connected on the Arduino board Now what I'd like to do is run this code on the Arduino to see if the relay clicks on or off You should be seeing the light go on and off in a sound of the relay actually moving So we're just going to select the Arduino board so you can see flashes on and off The one thing I'm not hearing is the loud click so this relay might be toast Oh, it's not my relay that's toast. It's my connections are backwards So I might have toasted it, but let's see. Okay, the relay is clicking on I just put power into ground and ground into power Nice, but we're missing one thing our power supply is not powering our vacuum pump So what am I doing wrong now? I can see the vacuum pump is ticking I'm thinking maybe this power supply is too weak negative into negative positive into positive Everything here should work I'm going to plug the Arduino back in and see if it cycles on and off the relay Boom on then off on and off. Okay Now we just have to try our power supply out. So I'm not sure how this will go. Holy shit. This thing goes crazy Look at the bottle So what's happening is every time the pump turns on it's sucking as much air as it can from our bottle here And I mean look at that it's off right now and the bottle is just squeezed dry And then it's expelling it out of the exhaust port over here And what I was trying to do with the balloon is just to visually show you that air is coming out the other side And we should see that bottle just I mean this bottle is Vacuum sealed if I've ever seen it now That's super cool But the problem in this case is that our bottle is super fragile But what if the bottle was strong enough to actually maintain some of that difference in pressure? And what if we put something inside of the bottle to see how that difference in pressure affects it? That's where I was hoping we can use this This is a glass container and we're going to modify it to become our own vacuum chamber And then we're going to put some things inside and see what happens to them You can pretty much maintain this exact setup. We don't need this exhaust valve We don't need the the bottle with the input valve We're going to be modifying this to fit everything. The first thing you're going to have to definitely do is make a hole in here While that glue dries, let's talk about what we have as test subjects for our vacuum chamber I was thinking we can take a balloon inflate it a little bit and put it in the chamber and see what happens to the balloon See if it pops explodes. If there's glass everywhere, who knows? And then I was thinking we can put some marshmallows and unfortunately I don't have full sized ones But I do have a couple in this bag that we can use little ones and see what happens to them I would love to do more vacuum chamber things. So if you have something you want me to put in this chamber Let me know in the comments and if it fits I'll do it and I'll post it at a short or something. There's actually one more thing I just remembered we can try in our vacuum chamber. This is soda water carbonated water Which just means it has carbon dioxide in the water and when you shake it and open it There's a difference in pressure inside. It's higher pressure and outside. It's lower So we are the vacuum in this case whereas inside it's the atmospheric pressure in our example We're going to try and put carbonated water in our vacuum chamber and see what it does Maybe it'll make the water more fizzy or maybe it's going to take the fish out of the water Watch until the end to see what happens All right, I think that's about as good as it's going to get So I got this thing sealed up with some glue We're going to take our first example Which is going to be our weirdly shaped balloon and we're going to stuff it inside of our homemade vacuum chamber So you can see it moves freely and it hasn't changed any size I could feel that we have a pretty bad vacuum leak over here So I'm going to see if I can get the seal fixed Unfortunately while making the vacuum chamber We had a little oopsie daisy and we cracked it all the way around Which obviously air can go in and out of and I don't want glass shooting around So uh, this is going to go to the garbage and in replacement of that We're going to use this little baby brother this little container right here We're going to continue off where we were last which is just putting a balloon in the vacuum chamber and running it like that Oh So I don't know if you saw that while on the camera We're going to run the slow motion camera, but the balloon expanded The reason for that is because the air around the balloon in the container was getting sucked out And the pressure in the balloon was getting higher than the pressure inside the container So it was forcing the balloon to expand around the walls until you heard that loud Air sound which means our vacuum seal was broken somewhere All right, let's get those marshmallows in there and run it back one more time Just gonna stuff as many as I can in there put the lid back on Close the lid up and we're going to plug that into our vacuum chamber one more time our vacuum pump All right, the slow-mo cam is on Look what's happening to those marshmallows every time I plug the pump in and out It's a little bit hard to see hopefully on the slow-mo cam it's better But every time I put that pump in there the marshmallows expand for the same reason the balloon expanded The air in the vacuum chamber is being sucked out So everything inside is trying to kind of leave the vacuum chamber and the difference between atmospheric pressure and the pressure inside the container Is changing drastically We're going to do our last test which is going to be putting carbonated water inside of our little container here I have a bottle of this pure life sparkling water and obviously if I shake it you can hear And you could see not I spilled water all over the table That this thing is obviously carbonated water. We're going to pour it in our container to prove I guess I'm going to just take something and we're going to mix it around the water And we could see that it's fizzling up see how this bubbles and carbonation kind of Coming up So we're going to put the lid on This time it's going to be a little bit trickier all right now let's Plug in the outlets we're going to leave it running for about 20 30 seconds And then we're going to look at the results and see what happened to that carbonated drink Sounds like we might have a vacuum leak unfortunately Let's try and run it one more time I don't know if you just saw what happened But all the carbonation is escaping the vacuum chamber and getting put out by this exhaust port It's a super interesting thing that's happening. We're actually removing the carbonation from the water and eventually it will become Stale tap water. I guess is what you're going to call it and plug this back in and check out what's happening to the water Now i'm going to leave it running for another minute off camera And then let's test the water to see what happened to that carbonation I want to open this and see what happens if there's any noise or sound now the water looks absolutely still I'm going to bring this up to the camera. You can see this little bit of carbonation, but It's not very bubbly anymore Looks like there's a bit of residue from the glue. So that's probably what that white stuff is in there, but Definitely looks a lot less carbonated than it was before It's unfortunate that this large container broke because I really would have loved to get more zoomed in footage But i'm going to buy a new one and we're going to try this test again Maybe with a bigger one won the size of the table or something and we can put something cool inside like a basketball And watch what happens to it. Maybe make it explode If you enjoyed this type of content, do me a favor like the video subscribe to the channel Let me know in the comments if there's anything about the video you think I did wrong anything you liked Just any type of commentary for the algorithm If this video does well in the future We're going to be using this vacuum pump to make some sort of suction gripper arm And we're going to put that on a 3d printed arm to move things around the table without using any of my hands I guess that's it for this one. I'll see you in the next one