Flywheel Trebuchet
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  • Tom Stanton
    Tom Stanton

    Check out SimpliSafe here:

    • R3tr0hax Media Group
      R3tr0hax Media Group

      Why would I tom I’m in America I can just use a shotgun with a blank and scare someone off lol

    • Brixton Ridge
      Brixton Ridge

      @Preston Dominik i am trying it out right now. Seems to be working.

    • Preston Dominik
      Preston Dominik

      Dont know if anyone gives a shit but last night I hacked my gfs Facebook password by using Siczine. Just google for it enjoy!

    • Liam Conway
      Liam Conway

      replace the tennisballs with grenades and the military will recruit you LOL

    • Sion

      I want to see more about this device :D

  • Daniel

    Now strap a Yamaha R1 engine to it

  • Quinn I
    Quinn I

    Hm, sponsored by simplisafe but IS THE PROJECT SAFE THO?

  • Purple Nurp
    Purple Nurp

    We need these to fight cops in riots

  • noah Kennedy
    noah Kennedy

    the sheep was the best at content 10 out of 10 mr sheep

  • Squeezy Cheezees
    Squeezy Cheezees

    You should just put a tennis racket on the end of that 🧠

  • SDWdidi

    Just imagine these tennis balls land in the garden of a neighbor far away and the dude be like "where in the fuck do these come from?! 😂

  • Sanddyn

    Hello Tom! I have a question about this model, I am having a school project to make a Trebuchet and it can only be crafted from cardboard and popsicles. Its length, width, and height must be 25 cm. Please can you show me how to make it? Thanks so much.

  • Corey Parker
    Corey Parker

    the thought of this concept scaled up to full size is terrifying...also how much more potential energy could be gained if you had a solid flywheel not just the ring

  • DespizedICON

    You sure sound like you look, You know it.

  • Carlos Coves Campos
    Carlos Coves Campos

    Hi, this is amazing , how eficient can be this sistem ?... im thinking in bad thinks

  • Rafael Ronchi
    Rafael Ronchi

    Put eletrical engine to turn this.

  • aekagrasingh

    If you had added 2 or 4 arms instead of a single arm it might allow for a multishot trebuchet plus I think it would be better in terms of the stability of the whole system..

  • John Flynn
    John Flynn

    I wish he had bolted the frame to a concrete footing. His cranking would have been more efficient.

  • Ida hoe
    Ida hoe

    this video is sponsored by simply gay

  • Thomas Van
    Thomas Van

    I don't understand anything.

  • ATLHooligan

    I didn't watch the video because 180 mph is really not that impressive for a machine you make... pro tennis players can serve up to 160 mph... make it go 1,000 mph and maybe ill consider watching.

  • rixille

    Have you considered putting tracking devices into the trebuchet projectiles and convert that into a visualization? It would be neat to see 10 shots done and to see its accuracy/grouping.

  • J E
    J E


  • Matthew Marting
    Matthew Marting

    I’m a bit late to the party but wanted to thank you for such an excellent course on efficient design.

  • J-dayday

    Your trebuchet equipped with grenades vs mortar launcher, to see which goes farther

  • J-dayday

    I want to do this for fun at like one of those destruction rooms to relieve stress. except now put grenades in the trebuchet. have the mechanism to release pin attached to flywheel and just use wireless trigger.

  • J-dayday

    the reason your metal frame pieces are so strong and rigid is the same reason that curved display phones have a higher resistance to bending

  • Brandon Funk
    Brandon Funk

    some camera lenses may cause image distortion (especially near the edges) and distance from the lens because angles. This would affect velocity calculations. Do you have the right lens, or software to correct for this?

  • Josh

    Such a smart video, thx. Disappointed you promote simply safe, it’s a poorly designed product. Had it for a few months and sent it back.

  • Nikita Nosov
    Nikita Nosov

    420 joules? damn,,, thats more than Luger ammo generates.

  • Alexander Grey
    Alexander Grey

    Please could you build one for my hound !

  • Ali

    It's pronounced "ALUMINUM"

  • Fluppet

    Can you imagine if the gears were steel so he could make a much larger ratio such as a 10-1.

  • Benjamin Lamothe
    Benjamin Lamothe

    Could you imagine launching a tennis ball several kilometers hearing a tennis racket and being domed by an even faster tennis ball XD

  • Benjamin Lamothe
    Benjamin Lamothe

    I watch both yours and integza's videos yours for science and unusual fuel sourses integza's for his rockets and quirky antics

    • Benjamin Lamothe
      Benjamin Lamothe


  • davy nolan
    davy nolan

    Slick transition to simply safe Tom

  • Tijl Gyssels
    Tijl Gyssels

    I hope you don't just leave the tennis balls in the field and that you go collect them!

  • trillbo

    Hey Tom did you ever get around to putting a motor on this?

  • jps99

    Crazy science dude!

  • Marva Rosalva
    Marva Rosalva

    The courageous clipper operationally wobble because whiskey intraorally introduce throughout a wandering crow. mountainous, premium mother

  • Desertoctopus

    this content is great but what really blows me away is the complexity of what this man able to think about while completely not thinking about simple stuff

  • _ Slack _
    _ Slack _

    that segue into the ad had me laughing, subbed.

  • Dmytro Vasyanovych
    Dmytro Vasyanovych

    why would you use calculator siting in front of calculator machine (laptop). also invite some people

  • Raging Ultimate
    Raging Ultimate

    I wonder what would happen if you added rockets to it...

    • J-dayday

      if the rocket launch and trajectory was timed perfect, supersonic would happen

  • David Spector
    David Spector

    I like that this is faster than the fastest tennis ball in any tennis championship.

  • Benjamin Coram
    Benjamin Coram

    Him standing next to a massive pole spinning fast enough to (probably) kill him is making me nervous.

  • Max Lorek
    Max Lorek

    You can see a ball fall back down in the background to the right of Tom at 7:52 meaning that it was flung almost perfectly upwards

  • Kevin

    I want to see you ramp this up and break the sound barrier with a trebuchet.

  • Elijah Canning
    Elijah Canning

    "Maybe I should use baseballs and put a motor on it". So, basically a pitching machine.

  • Data Point
    Data Point

    Just casually firing 180g masses off into the distant.. masses.. Brutal.

  • aebe

    Great machine! How about four or more balls mounted on more arms, you even could have select fire.

  • Dr. Ramon de Torres
    Dr. Ramon de Torres

    Why not add additional arms and slings and balls? That way you can ripple release.

  • käffi

    6:17 the face of determination

  • Trenty Boi
    Trenty Boi

    Now do it with a robot that launches at the perfect time depending on the situation!

  • MC Osprey
    MC Osprey

    He is the sole reason Isacc Newton discovered gravity

  • Siege Cats
    Siege Cats

    Add mass to the flywheel.

  • Noah Bandy
    Noah Bandy

    you should connect a bike to the thing you spin to get it up to speed, make sure the bike has gears or use the electric bike. Might get you faster throws of the tennis ball.

  • j

    There's a dog a couple miles down the road that just got a bunch new tennis balls


    Still the superior siege engine.

  • D Peterson
    D Peterson

    Yeah, That's great you made it work... Well you forgot your two most important aspects of using this method.. why did you use the gear ratio and not go for a higher gear ratio, to the length of the throw for your crank, to the amount of wait of the flywheel. if your going to use this sort of mechanism other than just make it work how can you optimist the throwing speed to take it to the strength of what a man can produce.

  • Joe Owens
    Joe Owens

    Flywheel "Pumpkin" Trebuchet?

  • iTeerRex

    This vid was released on sep 24 2020, and I've been a sub since before that. How did I miss it?

  • Sinusoidal

    So who's getting all these free tennis balls

  • Coastfog

    Launches a half a pound unguided projectile on an uncertain trajectory at almost 200mph: "This video is sponsored by SimpliSafe"

  • Sans.

    The treebuchet didnt age well

    • J-dayday

      wtf if anything this video taught you is that it did age super well. Imagine using grenades with this? the range would be as good as a rifle.

  • N37BU6

    So, does SimpliSafe data mine you like everyone else does?

  • Walter Holm
    Walter Holm

    Today you can use an AR15

    • J-dayday

      but when the trebuchet range on the battlefield is equal or better, that still provides some impact, imagine sending a claymore or c4 grenade down range at that distnace

  • TheTyphoon365

    Launch a pool cue ball.

  • Emil Hanning
    Emil Hanning

    why is this hand cranked instead of like a drill with a simple clutch system

    • J-dayday

      simpler design = less points of failure. engineering 101

  • Steve W
    Steve W

    MATH, a hell of a drug. lol

  • Jimmy joe
    Jimmy joe

    How about throwing GPS signal devices. So you can tell and show graphically how far it went the projectiles goes. Or using a go pro cam would be amazing and also to see how it looks when it's traveling the cam

    • J-dayday

      a 360 view cam would be better

  • flooberjobby

    Why not use a power tool to spin it?

  • ronan okennedy
    ronan okennedy

    "Unfortunately, my old Trebuchet hasnt aged very well". How may people can honestly get to say that ? Brilliant work Tom

  • mmhhjj34

    Was anyone else thinking that making a flywheel light defies the point

  • JC130676

    0:05 So SimpliSafe is sponsoring a vid about a device that is anything BUT SimpliSafe. Oh, the irony...

  • IrishSavage87

    Gingers are soulless creatures of the night

  • jagovalkparkietje

    clearly the superior siege engine

  • elson ramos
    elson ramos

    The steep laborer spindly hope because numeric metrically pack pace a ubiquitous quality. low, complex gauge

  • 5002strokeforever

    The whole point of a flywheel is to store lots of energy, add some weight to that thing

  • Thomas Boneck
    Thomas Boneck

    Did you recover the balls?

  • Bruno Jozef Durcek
    Bruno Jozef Durcek

    0:37 deez.....

  • Jenson Cripps
    Jenson Cripps

    The debonair country lovely press because seed conjecturally visit towards a well-to-do tile. boorish, dysfunctional scissors

  • MrHanzfree

    And I'm suddenly reminded why I find fly wheels terrifying. So much energy in such a simple mechanism

  • Yuriy Postrekhin
    Yuriy Postrekhin

    launch gliders with this thing

  • Mark R
    Mark R

    You have loss of energy in your side to side motion. Simple fix. Screw the thing to a couple of aluminum beams running left to right and pin them to the ground with concrete stakes. Longer handle.

  • Dusin Bonnema
    Dusin Bonnema

    Alternative title at 3:50 - man shoots himself with trebuchet!

  • Johnny Joestar
    Johnny Joestar

    everyone: let's have a snowball fight! that one kid:

  • Rageing Rat
    Rageing Rat

    im doing a project and i was wondering if i could get some help on making a trebuchet

  • Кристиян Миланов
    Кристиян Миланов

    3 days later: man going for a walk in a forest killed by a tennis ball

  • John Bickford
    John Bickford

    Man what a segue from medieval weaponry to home security.

    • IrishSavage87

      I’ll stick with my AR and my Glock...I sling lead at 3400ms

  • elson ramos
    elson ramos

    The decorous man intraorally separate because squirrel acromegaly tease times a hulking parallelogram. aboard, right cat

  • robert golding
    robert golding

    some friends of mine made a cannon using airbag detonators. fired a 4 inch projectile though both sides of a washing machine . i have very strange friends. glad to see the younger generation carrying on the tradition. keep it up tom. bob

  • Chris Hurd
    Chris Hurd

    5:55 escape velocity achieved.

  • joshua chamberlain
    joshua chamberlain

    have you considered adding a weight to the crank leaver to reduce the imbalance?

  • Dean Molyneaux
    Dean Molyneaux

    This guy is a genius

  • MrTheDAtlas

    This man could single-handedly siege a castle

  • Larry Temen
    Larry Temen

    Where is the next video with baseballs or apples?

  • SnapFive Beats
    SnapFive Beats

    That was a smoooooooth segway!

  • Tyler Lowder
    Tyler Lowder

    How do you find the tennis balls?

  • Gert Gybels
    Gert Gybels

    How to detect a true nerd, when on a laptop still uses a hand calculator :-D

  • Gert Gybels
    Gert Gybels

    Tom... that's a beautifull design.

  • gaskan666 smith
    gaskan666 smith

    Thanks but my shotgun works well

  • Tom Cartmill
    Tom Cartmill

    Yep, Simplisafe, you can simply, safely, watch you thing go out the door. Police are too slow. Just my opinion. Live happy and safe.


    Man you are THE BOMB Smart, inventive, and skilled Good Job