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

USWaterRockets : Congratulations on 100K Subs!

Ivan Miranda : I've been picking coloured balls from the shop floor the entire afternoon, but that's nothing compared with the exercise that you had to put picking all those tenis balls. I can feel the effort that you had to put in this video, well done and congrats on the 100K!!! Well deserved mate!!!

LolPlane : Imagine having to get that ball after every launch

Glen M : How far did they go?

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

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

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 :)

Moosh : fling a boomerang with this and see what happens

0Calvin : Trebuchets are so sexy.

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

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

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 👍

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

burak can : Finally! I was worried about you thinking that you shot yourself with the trebuchet :D

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....

Clorox Bleach : shoot glowsticks at night !

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

Will Walsh : Happy 100k!

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

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?

Green Silver : 👍😎👍 X 100,000!!!!!!!!!!!

Happy Helpful Hoovy : if the k in the sub number was kilograms, a normal trebuchet would not be able to launch your subcount over 300 metres

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

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

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

Loui Byrne : The question is; How far did the tennis balls travel? P.S: I could calculate it using the approximate angle of release from the footage and the 104 mph speed but I'm really not bothered😂😂.

Ian Colquhoun : WHEELS!

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

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

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

kustomweb : Love that whipping sound

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

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)

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

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

Kili Winkler : Nice!!!

Caleb Ames : Wow I didn't realize how quickly you grew but without me watching stuff like William Osman I would never have found you but I wish to be a mechanical engineer so once I start doing stuff for that I can actually make educated tips so until then

morethejamesx39 : Trebuchet plane launch?

nickt : YOUR EFFICIENCY CALCULATION IS WRONG. energy is proportional to velocity squared. 68.3/42.7 is not 62.5%, it's only 39%. you should be ashamed for blatantly spreading misinformation with such confidence. it is OK to be wrong, but when you are so confidently spouting incorrect information it makes you a bad educational youtuber

Michael Eisenhut : Dude, good job on all fronts! Now make it throw a 90kg projectile 300m! Also, nice vacuum nozzle on router, 3D printed? Try making a full shroud that catches chips out the front. I imagine the half shroud makes for better videos though.

Stefs Engineering : Just saw your instagram post. Was looking forward to the video!

bashpr0mpt : I bet this pulls women like crazy.

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

1024 : Congrats on 100K! You seriously deserve it.

TheHead : Great job Tom, congrats on the milestone! Looking forward to your future projects and success :)

Maarten Smit : Amazing work man, your engineering and video is so clear and understandable. I am a true fan from now on!

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!

Alan Cordwell : And there's me thinking Trebuchet was a Windows font!!