45,000 RPM Exploding Skateboard Wheel With A 60,000 PSI Waterjet Cutter - Slow Mo - Part 2

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- [Dan] This is the moment we've all been waiting for. See the hole? - [Mitchell] Yep, got it. - [Dan] Really? (laughs) - [Mitchell] So back in July, we cut this wheel, well, we spun up this wheel, and it flew off. (wheel bangs) - Whoa! - [Mitchell] See, it cut it a little bit. - [Dan] Yeah, that's the line from the water jet. Flew off the water jet, and it went right up into that hole in the ceiling. Well, we suspected it, and now, we've confirmed it. - Confirmed. - After we posted that video, we got a lot of questions, people wanting to know what the wheel looked like after, what would have happened if we stopped the jet before the wheel broke, and if it would've shrunk down. We kinda know what the wheel would look like, but we wanna explore some more of those options. We also wanted to try something a little bit different. There you go. Oh no, that's great. So, we got in contact with a longboard company called Lectric Longboards. You okay? - Yeah. (laughs) - [Dan] (laughs) Lectric Longboards, and they make a really high-quality, Lectric Longboard, for a fraction of the price of what these typically go for. And we've been playing around with them, well, Mitchell's been trying to. - Hey. - [Dan] But we're going to use a Lectric Longboard wheel, spin that up, and these are a lot softer, so we think that this will spin up, and stretch out even more. But first, we're going to do the skateboard wheel. And these wheels are, what I'm told, a very durable wheel. Feel a little bit stiffer than that other one that we did, so it'll be interesting to see if this one spreads out as much. And last time, I think some people feared for their lives? - They feared for our lives. (Dan laughs) - So, we're going to take some safety measures this time. (techno music) And there's our safety measure. Last piece, it's a polycarbonate, clear stuff, so it doesn't fly out and kill us from the front. Feel safe already? - Yeah, a little safer than my blast shield I had before. (both laugh) - [Dan] So, we're ready for the first test. The resolution's gonna be fairly low, 'cause we're at about 10,000 frames per second, but we wanna find out how fast that is spinning. (wheel emits high-pitched whine) (wheel bursts loudly) (whoops and laughter) (techno music) - [Dan] That came off, dented the top of that, which we didn't think it was going to do, a piece of it shot a hole through the board here, and then Mitchell claims he saw it land over there? - Yeah, I can't find it, though, but-- (Dan laughs) Found somethin' squishy. - [Dan] (laughs) Holy cow. - [Mitchell] We found the dinosaur. - [Dan] This is the dinosaur from how many months ago? The only way to sit this in water for that long is to. - [Mitchell] So this is what he looks like when he's about two months old. - [Dan] When he's full-grown. (Mitchell laughs) - [Dan] What's the damage? - So there's 13 frames for one full rotation of the wheel before it started expanding. - [Dan] Okay. - The frame rate was 9,863 frames per second, which puts that at about 45,521 RPM, with the circumference being 6.693 inches. - [Dan] And this is also before the wheel started expanding. - Yes, before it started expanding, so how fast it had to go to make it expand. So that is 18,280,503 inches per hour, it's 1,523,375 feet per hour, or about 288 miles per hour, before your wheel starts exploding. - [Dan] So that's how fast you can go on a skateboard before you die. - Uh, yes. - [Dan] And that's if you weigh nothing. - If you weigh nothing, yes. (Dan laughs) You could go 288 miles per hour before your wheels explode and you die. - [Dan] Let's do the second test on this one. We are going to try and stop the water jet before it snaps and breaks. (low electric whine) (techno music) - [Mitchell] And what's the result? Loosen out the bearings, just pop out. (wheel emits low whine) (techno music) - [Dan] So that just got torn apart. I think the rubber's too soft, and the jet started cutting into it and it just couldn't withstand it, right? - Yeah, that's true. - [Dan] Yeah, okay. (laughs) It's got like a plastic rim, that it's got the rubber wrapped around. We also got some of these other wheels, and they feel like they're more of a solid rubber all the way through, so that's gonna be the last one. We'll see if that does anything different. (wheel whines rapidly and bangs) (techno music) - [Dan] Did you find all the pieces? - [Mitchell] I only found five. It looks almost complete, but yeah, I think we're missing a small piece. - [Dan] That did not expand as much as I thought it would. - [Mitchell] It was cool seeing that all, they all exploded and broke apart at the same time. - [Dan] Yeah, and it broke before it hit the guard, so that wasn't the cause of it. - [Mitchell] And it broke in six places? - [Dan] Probably. - [Mitchell] All at the same time, and that was, that was weird. - Well, hopefully that was enough to hold you guys over, and hopefully we answered enough of the questions, and special thanks to Lectric Longboards for providing those boards and this wheel to us. Go their website and check 'em out, Lectric Longboards, the link will be in the description. They've got really good boards at a really affordable price. And once again, thanks to them for providing that. And, as always, let us know what we did wrong, what you would have done differently, why we are stupid, and what else we should do. And, you have anything to add to that, Mitchell? - I think that pretty much covers it. (techno music)
Info
Channel: Waterjet Channel
Views: 1,891,608
Rating: 4.875165 out of 5
Keywords: exploding wheel, waterjet channel, water jet, skateboard wheel vs waterjet, water jet cutting, waterjet, water cutting, water cutter, waterjet vs skateboard wheel, cutting with water, skateboard water jet, 60000 psi waterjet, cutting, cross section, cross-section, cut in half, inside, interesting, science, fascinating, amazing inventions, whats inside, waterjet cutting, fail, skateboard fail, press, funny fails, exploding skateboard wheel, part 2, shooting, rpm, slow motion, psi
Id: 2g5I_pPjCtg
Channel Id: undefined
Length: 8min 13sec (493 seconds)
Published: Fri Nov 03 2017
Reddit Comments

This is so tucking cool!

👍︎︎ 1 👤︎︎ u/TheDongerNeedsFood 📅︎︎ Dec 08 2017 🗫︎ replies
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