Optimising a Trebuchet

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Ryan M. : Are you planning and equipping yourself for a crusade? Can I join?

LeoFPV : More optimised than PUBG

ElectroManiac : Imagine having to get that ball after every launch

Projections : But can it launch a 90 kg projectile over 300 meters?

Meetim : The big question is, where did all the tennis balls go???

Glen M : How far did they go?

z4zuse : Add wheels and mount it on rails. It apparently makes it more efficient

nddragoon : you can't optimise a trebuchet, they're already perfect

0Calvin : Trebuchets are so sexy.

i am Kian : Congratulations with you 100K. You are a big inspiration to me. I'm only 10, but hope to do things like you do when I am older. Best regards - Kian 👍

aserta : That motor is entirely far too down, you have to minimize flexing in a CNC, not increase it.

Moosh : fling a boomerang with this and see what happens

bashpr0mpt : I bet this pulls women like crazy.

Andre Bandarra : Huge congrats on the 100k Tom, well deserved! Also, trebuchet powered 100mph tennis ball? what's not to love about that?! :D two thumbs up mate :)

CNC Kitchen : Awesome work as always! Congrats on 100k subscribers!

pizza_boy18 : Will you enhance this trebuchet out of exotic material such as ceramic bearing, aerodynamicly sculpted carbon fiber for the arm, and lead block as the counterweight?

USWaterRockets : Congratulations on 100K Subs!

vulduv : the reason this video doesnot have any dislikes. is because the trebuchet killed the people who would :P

Pete's Shredder. : I built an air cannon for a BBC tv show years ago that apparently got a tennis ball over mach1, according to a chronograph. Apparently thats not possible, due to choked flow... I keep meaning to re build the canon and try again and measure the speed properly. I built this giant 100mm piston valve that used the air pressure in the storage chamber to open the valve really fast. It was absolutely terrifying, and nearly 4M long. Those were the days....

kustomweb : Love that whipping sound

Umbra : Seeing that tennis ball fly as fast as it did was very satisfying. Great job!

Hyss : Just think, the players at Wimbledon at the moment can serve faster than you trebuchet can throw the ball.

scott lowson : If you put wheels on the bottom of the frame on all four corners facing the way the projectile is the wait only has to travel down and not backwards as well. It sounds counter intuitive but it works, most of the energy goes into throwing the projectiles rather than fighting with the frame. The wait goes straight down and the frame rocks back and fourth so less energy is wasted. Please try it and post the results. The ball will go higher, further and travel faster.

EchoErik : What was the distance of the 104 mph ball?

Atlantic Film : In the equation E_kin the velocity is missing a ^2

Panda Magnum : some dog somewhere back there now has a lot of toys

Tempest : If i hear the word “naught” ONE MORE TIME!

Just Thomas : Isn't your efficiency (at 9:20) math wrong because you should be using V1^2/V2^2 instead of V1/V2 ?

Will Walsh : Happy 100k!

MC's Creations : Amazing work, dude... Just... Fantastic! 😀 And congrats for the 100k subscribers! Now let's get another 100k! 😊

Christiaan M : Launch a GoPro!!!!! Pls

Garga : Tard

Carl Klinkenborg : Brilliant, well-reasoned video. I'm sure it's been mentioned (however I can't be bothered to read every comment!) but I can't help but feel that there is an optimum weight of projectile for maximum energy transference, disregarding for a moment the 'maximum velocity' goal. Any thoughts?

ChickenCommander : in fact 42.7 m/s is NOT an efficiency of 62.5% as you should compare joules instead of velocity. this trebuchet has an output energy of 51J which is just 39%. Sorry bro.. :/ did you try building a murlin?

GBranade : Never I have ever waited like this before every week WOW

james goodwin : If I need to storm a castle you’re my man,great work love it

Rick Hapstley : Today, I discovered a man who builds trebuchets in his garden for fun. This is fantastic.

Arcana : Amazing! I love it this is how school should be

MyyMeli : Congratulations for the 100k subs mate! This video was exceptionally well put together! And like I've said a couple of times before: "#Inb4AMillionSubs". I smell virality!

Logan Fortner : came here from r/trebuchetmemes

The Missing c h r o m o s o m e : My girlfriend: "honey, why is that 300 kg stone 90 meters away?" Me: "uh no reason"

LIONEL YORK : Bonjour et bravo! Perhaps you can throw ice balls (molded on plastic balls for Christmas) with light led inside tout see all the trajectory of the ball (on night of course ;0)

Simon Sozzi : Every time I see one of your thumbnails I think, "this guy." 👍🏼

Anchor Bait : Can you chuck something heavier? Golf ball? Baseball?

Synonic : Did you ever find the tennisballs?

Piet Muijs : Nice! Btw, you should get a dust shoe for your cnc. Fun easy project to keep the dust out.

capti : Currently working on a floating arm trebuchet

Yandere Shark : try throwing a plain in it, and see if it gets destroyed by the G-force or glide through the air in a tremendous speed

Da BJ : Absolutely fantastic video! Really interesting topic and very well executed.

Dyslexci : It doesn’t need optimized, it can already launch a 90kg ball over 300m