WEBVTT 00:00:00.000 --> 00:00:06.620 I can in theory wait longer yeah, it's just like it yeah, we need it like yesterday 00:00:06.620 --> 00:00:12.120 And I was planning to get it ready for Friday, but apparently we need to test this thing before Friday 00:00:12.120 --> 00:00:14.120 And I kind of don't want to test it 00:00:16.600 --> 00:00:22.320 Everything is fine. Yeah, nothing's broken. We're trained professionals. We're just trying to call the computer with 00:00:23.640 --> 00:00:27.600 This thing so what exactly is happening here? Oh, you want to see? 00:00:30.120 --> 00:00:35.060 Okay, let me show you so this is what I've been planning for the last a little bit. This is the fan 00:00:35.680 --> 00:00:38.180 This is a 3d printed shroud. We're just about to get 00:00:42.240 --> 00:00:48.040 This box that I didn't bother modeling very well, that's a Corsair 5000 X case 00:00:49.400 --> 00:00:53.940 So you're gonna mount we're gonna mount a big ass fan that big ass fan 00:00:54.200 --> 00:00:58.200 we're gonna put a shroud between the fan and computer and 00:00:58.800 --> 00:01:03.520 And we're about to make This computer like go to non here 00:01:04.360 --> 00:01:13.400 22.8,000 CFM So for context the highest airflow PC that we had that literally blew the top of the case off was about 4,000 00:01:14.400 --> 00:01:17.440 So this is five times. Yeah, it's basically five times 00:01:18.000 --> 00:01:22.840 So yeah, this is meant for like a big ass RC thing. Yeah, this has 00:01:23.640 --> 00:01:30.120 58 kilograms of thrust two of them you can lift yourself up off the ground if you weigh less than a hundred and yeah 00:01:30.480 --> 00:01:34.740 Seven kgs. What's that in pounds? I don't know what that is in freedom units 00:01:36.160 --> 00:01:39.440 There you go. Someone has worked in freedom units the whole life 00:01:40.720 --> 00:01:46.540 Yeah, that's what we're doing Alex and I discussed at length how we're gonna power this thing, okay? 00:01:47.040 --> 00:01:51.920 The amount of power needed to make this thing spin 60 horsepower 00:01:51.920 --> 00:01:55.440 Okay, to put that in perspective, that's half the power of my car 00:01:57.080 --> 00:01:59.920 So legitimately this was the discussion, okay? 00:02:00.960 --> 00:02:06.060 number one Buy a whole bunch of lipo batteries and put them in series 00:02:06.560 --> 00:02:10.300 uh-huh, or buy a volt battery like from a car 00:02:11.080 --> 00:02:19.680 cut it in half figuratively, but just like remove a bunch of cells until we got the right voltage because a volt battery can provide like 00:02:20.520 --> 00:02:29.680 600 amp of current from its cell pack So we just we remove a whole bunch of cells until we get the hundred volts needed to power this thing and we literally have a car 00:02:29.680 --> 00:02:32.200 Battery sitting here. It'll be about this big 00:02:33.200 --> 00:02:37.840 That that need to be water cooled by the way because the volt battery is water cooled 00:02:39.280 --> 00:02:42.560 Because it's one of the best batteries ever made and that would power this thing 00:02:42.680 --> 00:02:46.800 We ended up going with lipo batteries because it was slightly cheaper at like 00:02:47.600 --> 00:02:50.800 foreground Yeah, something like that 00:02:50.800 --> 00:02:56.640 now You might be wondering why did we not connect it to the wall from the wall a 00:02:57.520 --> 00:03:02.720 Normal North American circuit is 1.8 kilowatts if you use like a 240 volt 00:03:02.720 --> 00:03:07.360 That's what like 3.4 kilowatts this thing draws 45 kilowatts 00:03:09.080 --> 00:03:15.680 It's not even close you cannot plug it into the wall it will draw too much current by a lot. Yep. We're about to go to the red line 00:03:16.280 --> 00:03:18.280 See 00:03:19.280 --> 00:03:22.600 These are the batteries that we got to power it, okay 00:03:24.160 --> 00:03:26.320 So this is Alex's first time seen it 00:03:27.680 --> 00:03:30.200 That is a really nice battery. Oh, bro 00:03:30.760 --> 00:03:35.840 Yes, they also like they're also cost a hundred and sixty nine dollars each and we got 15 of them 00:03:35.840 --> 00:03:39.600 So this is a 4s lipo battery. So that means there's four 00:03:40.280 --> 00:03:44.360 cells in series It's rated for 130 C 00:03:44.720 --> 00:03:52.960 So what that means for people that don't do cars this capacity is 6,000 milliamps in other words six amp hours, okay? 00:03:53.760 --> 00:03:57.520 But you in theory can discharge it at 00:03:58.720 --> 00:04:03.680 130 times its capacity so in theory you could draw over 600 amps 00:04:04.160 --> 00:04:08.560 From this battery and it still be fine in theory. We're not going to do that 00:04:08.560 --> 00:04:13.780 We're only gonna go do about 260 maybe 270 not much beyond that 00:04:14.400 --> 00:04:19.840 But this is only 4s. We need 24 s to power this 00:04:20.440 --> 00:04:25.160 Okay, so if you're good at math, you know where I'm going. Well, what's 4s? 00:04:25.800 --> 00:04:33.120 Plus another 4s plus another 4s plus another 4s six times you get 24 s 00:04:33.960 --> 00:04:36.320 So we're gonna put six of these in series 00:04:37.320 --> 00:04:42.480 Then for out of good measure, we're gonna build another six series and 00:04:43.200 --> 00:04:45.840 Stick it on top and put those two in parallel 00:04:46.520 --> 00:04:52.280 For extra capacity because at Phil tilt we will drain this battery in three minutes 00:04:57.200 --> 00:05:03.160 So that's some behind-the-scenes that may or may not make it into the final cut, but that's how much thinking went into this 00:05:03.160 --> 00:05:08.040 Let's just say we're gonna test this before getting Linus in here because we're actually nervous 00:05:08.680 --> 00:05:15.040 That we're gonna blow the tempered glass out the sides. Yeah, that is a bit might just remove the side panels 00:05:15.080 --> 00:05:21.000 No, we're doing that on camera. We need to try that. Okay. Well, then we need to build like a freaking like plexiglass structure 00:05:21.000 --> 00:05:25.800 Yeah, this can 100% this is a rat RAM. This is behind-the-scenes rambling 00:05:26.680 --> 00:05:35.120 We do need to start a roll though, okay How should we say this in a way that makes sense instead of just rambling to the social team for a while? 00:05:36.600 --> 00:05:39.680 That's a good question good thing. We have a right again. Yeah 00:05:40.720 --> 00:05:45.400 Yeah, I guess that's my problem Do we want to like intro the fan? 00:05:46.800 --> 00:05:52.360 We'll intro the fan in the intro. Okay in the intro. This is this is just post-intro. This is post-intro 00:05:53.080 --> 00:05:55.960 So this is kind of when we're like we've got the fan 00:05:56.640 --> 00:06:02.220 It's really scary And we need to make sure that we don't blow ourselves up. Okay 00:06:03.760 --> 00:06:08.600 How we're going to do that is by using this thing which on its own 00:06:09.520 --> 00:06:14.880 Not too bad This thing is actually pretty scary once again 00:06:14.880 --> 00:06:21.560 Well, we do need to tell the story of how we came we need to tell the battery the battery story because that was a significant pull 00:06:22.280 --> 00:06:28.180 I actually power it. I think that we have Linus do that on Friday in a roll. Okay, that's that's fine 00:06:28.200 --> 00:06:33.160 Okay, so you script that I'm gonna have the crate. We're gonna have the hook. You're gonna the intro 00:06:34.560 --> 00:06:37.840 Then we want to what cut to us building the actual battery 00:06:38.360 --> 00:06:42.480 Or do you want to cut to Linus explaining the choice of making the battery? 00:06:44.080 --> 00:06:50.000 So I guess are we we're not making the battery today. That's a give you oh, we are yeah, okay 00:06:50.480 --> 00:06:54.680 That's why I have a little stuff. Yeah, we can we were testing and making the battery 00:06:55.720 --> 00:07:01.520 I thought we were just testing Do you want Linus to make to try to make the battery? No, not really 00:07:03.800 --> 00:07:10.080 The main things that we want to do today on camera is show this being a 00:07:11.320 --> 00:07:17.000 Sketchy solution, but a lot less sketchy just to just to test it. Yeah, it's a lot less sketchy than having 00:07:17.840 --> 00:07:25.240 200 500 amps available to us and we like take this apart. Yeah, good. Look. Yeah. Do you want to start by doing that? 00:07:26.760 --> 00:07:32.600 This is the AC is gonna power it. It's a complex piece of electronic thing. We're gonna take it but 00:07:33.960 --> 00:07:41.000 Sure Legally, you're not allowed to use this for human flight, but people have 00:07:41.000 --> 00:07:48.240 Oh All right, there's legal in what you yeah, and camera is rolling 00:07:50.160 --> 00:07:54.460 Bassie fan VF 390 day one 00:07:57.800 --> 00:08:00.300 This is going multiple days, you know that I 00:08:01.480 --> 00:08:06.720 Guess do we have anything else to say really? I mean the only thing I have to say is 00:08:07.680 --> 00:08:11.720 This is the ESC That's the fan and this 00:08:15.600 --> 00:08:17.600 It feels like it's like 00:08:18.720 --> 00:08:21.160 Tidy-ass little thing powering just death 00:08:22.200 --> 00:08:25.080 Roland we have these big capacitors here 00:08:25.960 --> 00:08:29.800 to talk about There's this IC 00:08:30.800 --> 00:08:36.080 Keep the fun You've got our PWM lead 00:08:39.680 --> 00:08:41.680 Okay 00:08:43.160 --> 00:08:48.240 PWM lead we've got our firmware controller, whatever settings leave 00:08:54.800 --> 00:08:59.560 This is very similar technology to what's in an EV car that takes power from the battery and 00:09:00.320 --> 00:09:06.160 Converts it to what the motor needs to go forward except we're gonna thank in the middle of the cut 00:09:10.200 --> 00:09:12.200 Hmm 00:09:13.720 --> 00:09:19.400 That takes power from the battery and converts it to the three-phase unit to run the induction motor for the car 00:09:20.200 --> 00:09:24.000 Instead of making the cargo for we're gonna attach to a fan and 00:09:25.320 --> 00:09:27.360 Yeah, make our computer go backwards maybe 00:09:30.360 --> 00:09:33.520 Yes, is that b-roll ready that is 00:09:40.200 --> 00:09:42.200 I 00:09:45.040 --> 00:09:48.880 Know Could have made a really awkward joke there, but decided against it 00:09:49.680 --> 00:09:56.960 Do you have any more of these guys? No, no that one came with the ESC. Oh, I have a whole bunch of five millimeter ones 00:09:57.880 --> 00:10:00.360 Doesn't go in. Yeah, five doesn't go into eight. Hmm 00:10:01.360 --> 00:10:05.200 Quick math You could do 00:10:05.200 --> 00:10:09.000 Just take some more eight gauge wire. This is all the eight gauge wire 00:10:10.440 --> 00:10:13.760 Like that that's all the eight gauge wire. Yeah, that expensive me 00:10:14.200 --> 00:10:17.680 Like this. So this was like this was like 60 bucks 00:10:18.520 --> 00:10:26.680 That was 60 bucks. Yeah from Digikey I could have ordered a cheaper from somewhere else, but there was a lead time issue. Oh, yeah 00:10:28.600 --> 00:10:33.520 I should have brought some of the wire that I have. No, it's not high enough current. This is this is silicon sheathing 00:10:33.520 --> 00:10:37.920 It can handle we only need to handle 10 amp. Oh, yeah, okay for that. Yeah, okay 00:10:38.320 --> 00:10:44.600 We could use smaller wires and then like, oh, yeah, okay, I see the problem now. Yeah 00:10:46.280 --> 00:10:50.200 One of my ways to be doing the game. Oh, I mean, yeah, okay 00:10:56.680 --> 00:11:00.520 I need a snippet I need a snipsnip thing 00:11:00.520 --> 00:11:07.040 Oh There's some flash cutters. We're gonna cut some things fleshly 00:11:09.040 --> 00:11:16.280 Oh, that doesn't have a battery, does it? Yeah, I feel like we're gonna break this thing to taste so small 00:11:16.280 --> 00:11:18.280 Oh 00:11:39.840 --> 00:11:44.520 Oh This is kind of sketchy 00:11:45.440 --> 00:11:50.160 That went somewhere, I don't know where it went Someone's gonna find it later 00:11:50.800 --> 00:11:52.800 And this is why the shop is dirty 00:11:55.680 --> 00:11:58.860 Alex, yeah, it doesn't fit your big enough 00:12:00.520 --> 00:12:03.280 I mean, I could just try and force it 00:12:04.080 --> 00:12:11.080 I mean, I am gonna snip this off like a lot sooner anyway. I really should have just brought some stuff from my house 00:12:11.680 --> 00:12:19.440 A bunch of 8-gauge and 4-gauge wires and all the connectors. 4-gauge? Yeah, this is 6-gauge. It was like, yeah, thick board. Yeah 00:12:19.440 --> 00:12:27.000 For what? Sound? Yeah, I don't know Sounds like Stundra. Yeah, it wouldn't handle the max current that we're gonna send through. It wouldn't be 260 amp, would it? 00:12:27.640 --> 00:12:34.160 Yeah, no, it's like CCA, which is why it needs to be big. It's difficult to find like cable that can actually handle 00:12:35.000 --> 00:12:41.200 hundreds of amps That's not like this thick and completely like stupid to work with 00:12:42.280 --> 00:12:47.680 Find a way to connect that into that thing and then we're good. I'm gonna try and strip this 00:12:50.200 --> 00:12:52.200 Yeah, yeah 00:12:53.960 --> 00:12:55.960 Bye 00:12:57.800 --> 00:13:05.480 Or like the engineering workshop is like full of like stripped off pieces of wire because I don't know why I think I think I could 00:13:05.480 --> 00:13:10.100 Subcheap, I don't bother buying like proper wire strippers. I just use the 00:13:11.280 --> 00:13:13.280 cut-and-flip method 00:13:15.080 --> 00:13:18.320 This is going this fine, and we haven't even started building the battery pack yet 00:13:21.480 --> 00:13:25.080 Man this tape is like sticking to my freaking noise. I'm gonna cut. Yeah 00:13:29.080 --> 00:13:33.000 Just sticking to my head. Do we know if there's any sort of protection on here? 00:13:33.720 --> 00:13:41.200 Uh Given this was incredibly cheap and from Amazon. Okay. Oh, this is fuses. Oh, yeah, these are cool 00:13:41.200 --> 00:13:45.960 Well, I'm just gonna like jam the wire, and then I don't know where they like it's very it's very like 00:13:46.440 --> 00:13:50.140 Strandy wire so the spokes could go everywhere. Mm-hmm 00:13:51.360 --> 00:13:53.360 You could just tend the wire 00:13:54.720 --> 00:13:59.960 I'm gonna say that for later You'll see why when you try and turn this wire 00:14:03.200 --> 00:14:08.880 Uh You know what we could have done we could have had a fuse on the battery pack 00:14:13.240 --> 00:14:20.240 For the video we need to wire to the trigger. Yeah, it's like just sit there be like run the benchmark Alex 00:14:24.080 --> 00:14:26.440 Then again, do we actually want that as an option 00:14:33.520 --> 00:14:35.520 I 00:14:43.760 --> 00:14:49.560 Are you commenting that we need double A's for that to work. Yeah, I didn't know that. Oh, okay. Never mind. He knew that 00:14:50.920 --> 00:14:55.040 I thought we're gonna get that he's gonna be like why is it working Kyle? 00:14:57.040 --> 00:15:02.360 That went better in my head than actually went to real life. It's okay. Do we have double is the camera done does 00:15:03.280 --> 00:15:13.400 Thank you Creative Warehouse is not the size of like the whole company when I joined. Yes. It's awesome. Oh crazy 00:15:16.320 --> 00:15:21.000 And that was like success. Yeah, so from six to three 00:15:21.760 --> 00:15:28.360 You basically went from 15 to 25 because I was a 26th person. Yeah, and then from 00:15:29.040 --> 00:15:31.440 my time to now it's like 00:15:32.440 --> 00:15:39.320 107 Absolutely explode. Anyways, I'm sure we beat that horse or not 00:15:40.400 --> 00:15:46.220 Yeah, that's all just gonna be a full plane. Yeah, I'm sorry to the editor. That's all not a rule. Yeah 00:15:47.000 --> 00:15:50.520 Be prepared for explosion. I may be made up on the safety glasses 00:15:52.080 --> 00:15:55.000 This is probably okay. Do you want to turn it off? Is it up? 00:15:55.920 --> 00:16:02.220 Yes, you can turn it you can turn the output off. Okay, so when I read on the internet, this is supposed to be the connection method 00:16:06.280 --> 00:16:12.560 It's fine everything's fine. Okay, so the connection method that I read up was you plug the hot side in 00:16:14.280 --> 00:16:16.280 Okay 00:16:17.400 --> 00:16:19.400 Then you plug this in 00:16:21.040 --> 00:16:23.720 No spark and then we wait 00:16:25.000 --> 00:16:27.000 So it caps a child 00:16:28.080 --> 00:16:33.120 Probably not very long that's supposed to be it. We should insulate that at some point. Yeah. Yeah 00:16:37.320 --> 00:16:42.240 Okay, now we smell from magic smoke So if you smell the very funky smell 00:16:42.880 --> 00:16:49.680 It's Alex See, I'm not the only person who asked this question because it's the top search thing on YouTube 00:16:49.760 --> 00:16:52.820 How to power a fly sky receiver, which is listening 00:16:53.500 --> 00:16:59.180 I don't do RC So I am being educated by Google 00:16:59.980 --> 00:17:06.220 And the RC controller, that's the thing that connects to so that yeah 00:17:06.220 --> 00:17:09.380 So basically when I when we go room room 00:17:10.500 --> 00:17:15.900 You somehow need to tell that thing to go from room. Yeah, so because it's wireless. This is the transmitter 00:17:15.900 --> 00:17:21.060 This is the receiver. Okay, this gets powered by the batteries that Alex just went and fetched 00:17:22.060 --> 00:17:26.020 So this will get power but 00:17:26.020 --> 00:17:28.520 This thing needs power and 00:17:29.420 --> 00:17:31.620 Currently, I don't know how it gets power 00:17:33.420 --> 00:17:39.160 So this is a six-channel receiver you can see ch1 ch2 ch3 blower all the way six 00:17:39.180 --> 00:17:43.660 Then there's also a bind on the top right, so 00:17:43.820 --> 00:17:49.820 My assumption is that you can bind. Well, you can bind this to different remotes by shorting out some 00:17:50.180 --> 00:17:55.660 Terminal in here and putting them to bind mode and then you do something with a receiver and then it pairs, right? 00:17:56.500 --> 00:17:59.060 My assumption is that if I put 00:17:59.900 --> 00:18:04.580 Voltage on the bind just like five volts. It'll power the receiver 00:18:04.580 --> 00:18:09.380 I just want to make sure that that's actually the case so that if I do it. It doesn't blow it up 00:18:10.780 --> 00:18:13.860 Mainly because we don't have extra and I don't want to blow stuff up. So 00:18:14.300 --> 00:18:17.500 We might actually have extra for that, but yeah, yeah, yeah, yeah. Oh 00:18:18.980 --> 00:18:22.540 My god, what oh just seeing that 00:18:23.980 --> 00:18:28.940 Yeah sneak peak there it is there we go. There we go. Ha ha 00:18:31.220 --> 00:18:37.860 Position let's move it down I'm going to try and get like maybe two in the same frame 00:18:40.060 --> 00:18:45.680 sideways position Two in the same frame. There we go. There's two in the same frame 00:18:47.300 --> 00:18:53.180 All right, so from there to there is 50 times a second. All right, so from and 00:18:53.900 --> 00:18:59.000 Then there's one hump. There's another hump and then when you change it. It'll change both of them 00:18:59.940 --> 00:19:01.940 right so 00:19:03.180 --> 00:19:07.500 From a DC side what that's actually doing is you're starting with five volts 00:19:07.500 --> 00:19:13.900 But because you're only on for like what is essentially 10% of the time you actually read like 10% of the voltage out 00:19:13.900 --> 00:19:17.500 If you if you if you just would have probed it with DC, but what the actual 00:19:18.860 --> 00:19:23.900 ESC sees is sees that bump it reads the duty cycle and then 00:19:24.980 --> 00:19:29.420 Changes the fan speed accordingly That's a very high-level definition of what it is 00:19:31.300 --> 00:19:36.300 Cool Teen to change that's a roll right those two things. I don't know 00:19:36.980 --> 00:19:43.460 Change that's very potentially just more flow plane exclusive, but a little bit of that explanation will be in for sure 00:19:43.460 --> 00:19:50.020 Or you can just like Remove me out and have someone use a little bit more lesser verbose explain it 00:19:50.020 --> 00:19:54.740 I don't know. I think that was a pretty good explanation. I Dig it cool 00:19:55.300 --> 00:19:59.620 Nope Emma 00:20:00.180 --> 00:20:02.180 Thank you 00:20:03.740 --> 00:20:05.740 I 00:20:08.580 --> 00:20:15.900 The back brace for the computer So it doesn't fly that way. It doesn't know where it goes. Um in theory no 00:20:16.540 --> 00:20:24.980 Do we have a big old heat shrink? Do we have a big old heat shrink? I was gonna use electrical tape, but yeah inside the bottom drawer of the electronics cabinet 00:20:28.180 --> 00:20:32.140 You probably don't want to be on this end when that fan is on this side 00:20:33.300 --> 00:20:38.220 You don't necessarily want to be here, but it's much better than being on this. Yes 00:20:38.580 --> 00:20:43.380 Because if you think about it, these pins right here are the thing that are going to kill you 00:20:43.540 --> 00:20:48.940 So if one of these explodes, it's already loaded up so it shoots this way 00:20:49.500 --> 00:20:52.380 So if this fan explodes everything's coming out 00:20:53.500 --> 00:20:56.620 Like that which is a bit counterintuitive because you kind of think it would go down 00:20:56.620 --> 00:21:01.380 But you know there might be some Yeah, majority of the big chunks are gonna go 00:21:01.380 --> 00:21:06.540 Yeah, this blade is going to try and heat itself in that direction. Yeah, this is more of a sandy check 00:21:06.540 --> 00:21:08.540 Yeah, and then we're gonna build a big battery 00:21:14.700 --> 00:21:22.260 It's a big fan, hey, I Was thinking maybe this big but like holy crap. That's a big fan. Yeah, big fan 00:21:22.860 --> 00:21:26.580 All right, wait get get like everything expensive out the freaking way 00:21:28.620 --> 00:21:30.620 Oh 00:21:55.740 --> 00:22:00.620 That's 10% power I 00:22:02.300 --> 00:22:04.300 Needed that 00:22:08.820 --> 00:22:10.820 You found more I did oh 00:22:12.940 --> 00:22:19.180 Hello spider. Oh, no, it's a mosquito. Ah, geez that's a big sucker. You see it 00:22:19.860 --> 00:22:21.860 Where the freaking on 00:22:27.340 --> 00:22:31.420 There you go weapons velocity mosquito. Yep