A Machine Gun Crossbow?
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- เผยแพร่เมื่อ 7 ก.ย. 2024
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Can I build a practical machine gun crossbow, or will there be too many drawbacks?! Check out today's episode to find out...
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Keep making these series! I have really enjoyed watching them since like six years ago
Please make a waterproof Da Vinci style diving suit.
Good job and I can't wait to see what you and Joerg Sprave come up with.
very poor quality workmanship just because you are using hand tools doesn' t mean you can be sloppy, smooth out the surfaces
make and use a ruler and gauges just like they use to
@@jamesberry3230 that is kind of the point smoothing surfaces is a slight waste of time
Also i dont think there would be lots of ways to smooth wood without risk of making it more rough in the current stage of the reset
Honestly it's impressive how well it works. You also managed to get some decent power with it. I feel like a bit more time tweaking things around and it will work really well.
Wait until he use compound bow
I think that a lot of the difference here is that he's using single general-purpose rough-made tools with minimal finish work, because he's using stuff he made himself, and wants to finish on a video-production schedule with a functioning prototype. Historically, they'd be using specialized tools made by toolmaking specialists, have people who would do the final sanding and polishing for them, be working from charts and pre-designed specifications that've already been iterated on.
So like, things like having a sanded and laquered finish on the moving parts, having thinner walls on the box, more precise dimensions to the bolts they're using. Using different woods or materials for different bits.
you literally have no clue what a machine gun is, thats basically just a crossbow but instead of loading every arrowing your self, you just lift it up in the air until it loads
Anyone else start worrying about Andy's neighbours when he started shooting a giant crossbow with questionable accuracy at his fence?
yup, better put our dog up before he overshoots and fido ends up in the hospital
That was my first thought when I saw the firing set up
YES! 😅
Yes 😆
The very first thing I thought of.
As a maker I have to ask the group... am I nuts or is he actually getting really good at this stuff?
I was honestly surprised, not the typical super amateur attempt like he used to do.
He's been getting better over time, and especially now that he's spent some time to refine his tools, so he's not using just random stones and bits of random wood.
He used to be terrible even with proper tools
@@Mynameischef he still is
@@almightykaroshi I disagree.
Btw I think the original chu-ko-nu had a captive "firing pin" of sorts that sat under the cocked string. When the lever was pulled back to full travel, the bow would fall on a protrusion, pushing the "firing pin" up which would push the bowstring off the notch/shelf, firing the bolt. The pin would reset when the lever was moved forward as it lifted off the protrusion. A consistent "trigger" like that would probably improve accuracy and make it easier to score hits at steep angles
Yes my own crossbow uses a similar mechanism but with a simple button trigger
Accuracy doesn't really matter when you're trying to fire volume into a crowd
@@robertcowley-yamamoto4880 Well arrow heads at the time were not that cheap so more accuracy you get the better, but then again one would mix up the military force with this kind repeaters for volley fire and have few hundred specialists with long bows to take the accurate shots to individual targets. Though i could be wrong on army composition.
@@Hellsong89ancient China was an industrial leader contrary(?) to modern day and volume of fire was much more important. Stationary versions were wall defenses or ship defenses. They were likely much more powerful and accurate than depicted in this video. If they wanted low range power, they would use a scorpion pattern crossbow (existed in China since 400 BC) or a composite bow.
We're so proud of you.
You improved massively at making things. It really shows your commitment to this whole experimental archeology project.
I would definitely want to add some kind of rail system to prevent the top section from falling off the side when you push it forwards to reload, the channel you have it resting in doesn’t quite seem adequate especially when you try and go quickly. But for a first attempt that is spectacular and I can’t wait to see what other improvements you are able to make in your collaboration with Joerg!
adding a bar on each side would probably fix it.
My thoughts exactly
@@satibel exactly. I was think "just nail two peice of 2x4 to each side" the whole time. Would probably help with accuracy as well
This has got to be one of the coolest things you've made! The raw power as the arrows tear through the target is so satisfying.
uhm actually they're called bolts 🤓🤓🤓
Zhuge nu is actually relatively weak
It's a Styrofoam target. A toothpick will penetrate it. He needs to use ballistic gelatin and up the draw weight a little.
@@alexwang982 Not every Zhuge nu is weak, the korean naval artillery version is not. It's basically use what look like normal bow and long powerstroke.
@@cool06alt however, there is still a definite limit to this design which is in the strength of the user. there are no aids to draw the string available in this design, just leverage from the arm. you can't have 200lb draw weight zhuge nu because no one could draw it.
Sir Ralph Payne Galway wrote a book which covered crossbows in detail. It's been 40 years since I read the book but it mentioned the Chinese Repeating Crossbow. It did mention that the crossbow fired light arrows that often had the tips covered with poison.
That sounds like the most effective way to use this weapon. Shot placement wouldn't matter and you could take out more enemies per shooter.
@@commonsence8223also the power doesn't need to be as high, requiring less penetration to be effective
I'm sure a huge number of people like me were all screaming Joerg at the screen this whole episode. I'm glad you're collabing
And yet surprisingly little comments mentioning him, your the first one i see
Wow, you've gotten pretty great at constructing things. I'm sure there might have been more hassles behind the scenes but even though the final version looks a bit prototypy (because it is) it looks really usable and accurate to the source material!
So glad the workshop has finally been built and you've moved on to such big projects! You're a legend for pulling through this challenge and I can't wait to see you evolve in the future!
Incredible! I love how good your wood- and metalworking skills have gotten.
From the video you can see the blacksmith dude did the metalworking part. This is a work of at least 2 guys. Also, I think the more impressive part isnt the quality. Honestly, theyre not good quality, as you can see in the amount of tweaks needed and how everything is a little bit wonky. Whats impressive is this guy just soldiers on and really put in a lot of work. Just today I accidentally broke a cutting disc, quickly packed the machine to hide my fuckup (so I dont have to replace the disc), then resorted to a regular hacksaw, gave up a quarter of the way, then walked some distance to go get the acetylene torch to cut the thing. If I were tasked with building a machine gun crossbow with historical tools, it would be done in 20 years because I simply wont have the determination to go through all that work.
@@de0509 I didn't work on this video beyond a tiny bit of planning and consultation. The footage of me is from the other crossbow video.
@@TheElfsmith ah my bad then. Sorry didnt remember your channel name. But I definitely remember your face
I noticed that in the Korean painting there are guides holding the box along the sides of the base to keep it on track. That may help.
Great video, in my expeience with making strings for crossbows. you may want to wax your string, so that it glides better along the wood and out of the notch. also i dont know if you did any fletchings on the bolts but most crossbows only had side fletchings. not the typical 3 we have now. i built one with a track down it for the lower arrow fletching to go down and its pretty nice.
loved it. I envy your ability to persist and finish projects, especially with hand made tools.
yeh. I wouldve suggested him to get a file. Much like how theres this (banter) saying "grinder and paint, makes you the welder you aint". Wouldnt want to say it because that would be such a low blow. But seriously. I super hope to see him get a metal file someday. Why study the ways of the chisel for 20 years to get to a craftsman level when a plain metal file wouldve achieved a relatively good enough surface finish immediately.
I was hoping Joerg Sprave would get a mention, and you didn't disappoint.
as soon as i saw the title of this video, i got excited for a possible collaboration with Joerg! sad i didnt see it in this one, but im glad you mentioned him, cause ive been watching him for a VERY long time.
This series definitely shows just how far we've come from the stone age. Really puts it in perspective.
Hi, I'm currently working in the area of archaeological conservation in China and I know a large number of archeologists, if you need help creating projects like this, feel free to ask me for help.
The traditional Zhu Ge Lian Nu uses a very heavy bow at the front, compensating for the relatively short travel distance of the string. The lever of these larger versions of Zhu Ge Lian Nu is also constructed differently, usually with one arm much longer than the other, making it significantly easier to use. The magazine box also needs to be much more precisely fitted so that only a single row of arrows can fit in it without wobbling. There are also two pieces of wood on either side at the front of the Zhu Ge Lian Nu to keep the magazine from moving sideways. The arrowheads of the Zhu Ge Lian Nu are usually a bit bigger than the one you used.
Zhu Ge Lian Nu is usually used in a defensive manner as they are bulkier compared to traditional bows, and nearly impossible to refill on a battlefield when used in an offensive manner. Hope this helps, Cheers!
This is so like Jeorge Sparve! You should do a collaboration!
LOL! I just saw the part in the video where you reference Jeorge! That man has a laugh that is so manly it could cause a young child to spontaneously grow a mustache!
Protip with bamboo: when you gently heat bamboo, the sap comes out and it becomes almost as flexible as rubber. Then if you cool it in water and rub the sap in, you can shape it to any shape you want! Do this to easily make a circle of bamboo or bend it in a recurve shape. Almost like steel.
Remember when you do this to NEVER put the bamboo inside the flames. Put it above the flames, with the green side facing down, and bend it as it’s being heated. This also hardens the bamboo; you should use it in a recurve bow
It has been great fun watching your development as a woodworker and smith. The sophistication you have managed with your hand made tools is really impressive.
Can't wait till you get to matchlock weapons and such, would be cool seeing how you make those!
@@stevexracer4309 sad but true
I hope that He goes slow and steady with anything involving gun powder and guns. I'd HATE to find out that this cool Dude got blown to smithereens because His home crafted Blunderbuss went "KA-Plooey! " instead of " bang ! " . I lost a Cousin ,God rest His Soul, after He had a home made miniature cannon explode ,sending a chunk of the aft end into His neck just below His chin. He died quickly but horrifically gruesomely . Factory or professional shop made guns are dangerous devices on the best of days ,so homemade guns, cannons and long guns are terribly , potentially catastrophically ,dangerous instruments.
It amazes me how far he's come in about three year's a wonderful job
I don’t know which I’m more impressed by, your skill at old-world craftsmanship or the technical prowess of old-world crafters.
incredibly satisfying episode, the accuracy and speed of construction with the use of metal tools is a joy to see
Very cool! If you forge another bracket similar to the one you already made and attached it inverted to the front of the lower section of the crossbow, it would go around the top part and prevent it from separating. Keep some extra clearance, so it won't hinder reload.
Gears are a great way to make that automatic. Don't use doctor stones version to change rotary motion to a straight forward one. Instead just take a rod and fix it to any point on the circumference of a circle, then as the circle rotates, the point will change it's position from one side of the diameter to the other. If you fix the other end of the rod that's not attached through a focal point like a ring on some nail, it can be changed from a rotary force to a linear one. Good visual example can be found on or in some trains
Steam locomotives have tat sort of linkage, yep. Also, that's the basic operation principle of a tattoo machine. And almost the direct opposite of how auto engines turn linear piston motion into rotary camshaft output.
@@theKashConnoisseur correct on all accounts sir
1 thing you could do to do to improve it is the put bars or some sort of side rails at the front to keep it in line. Other than that its cool. Good job!
Reminds me of the automatic crossbow Adam Savage made on MythBusters. If I remember, that used a spinning hand crank.
Guts
I've followed your channel for many years and you have progressed a ton. Maybe a fun suggestion - do you think forcing yourself to rely on tools you made could be slowing down production? You're talented, but for each project you're having to rely on tools you made while learning. Even back then people would rarely make their own pieces and used professionally made tools.
You could still purchase tools and try to keep it reasonably accurate to the time period. Would save alot of headache, hours, and wouldn't take anything away in my eyes. It just seems you're putting yourself through alot of unneeded stress. May be able to put out more videos without that restriction. Just throwing out random ideas. Keep up the good work, love it as usual!
I made one of these about 25 years ago following the schematic in The Book of The Crossbow. If I may, I have some suggestions to make yours run smoother. Put a wooden rail on each side of the base where the top slides back and forth. It will make a big difference. Also the surfaces where the top and bottom come into contact will function more efficiently if they are both flat instead of v-shaped. It will also keep the string from getting abraded by the string guide slot.
Gonna remake this with a historical bow that’s powerful
Your wood working skills have gotten really good! Also, amazed how well those augers work, like the dowel was a perfect fit!!
well done. the production quality has increased a lot, too -- the narrative of this video was really clear and easy to follow!
It'd be super cool to see you make a handplane, not sure in the history of them but would definitely help a lot with flattening and shaping timbers
It's great to see how much more precise the work becomes as the tools increase in quality.
Im curious to see if you can make and compare an instant legolas. It got flak for not being invented till the modern age but i think you can make one!
This is the first of your videos I've seen. At first I thought that's a pretty interesting idea, and it's cool that it's actually a historic weapon, but I didn't expect that you'd use historical tools that you made yourself! That's dedication.
I got to visit Atapuerca recently and see some of the earliest found tools of humans in Europe and I often thought about how much I’ve learned from this channel alone. Thanks for all the cool history!
In one of your videos you do soon, you should go after making gears and you can arrange into a sort of form of a transmission system, allowing you to trade torque for horsepower or horsepower for torque. Can arrange them by hand if you can't figure out a simple clutch design that allows you to release from one gear set to another. Extremely versatile and necessary for lots of engineering applications. The mind is practically the limit shit gets crazy. I'm almost convinced someone could create a type of life if you had intricate enough gear work
@@stevexracer4309 I'm going to assume you meant gears because I made no mention of God. However to answer I'd have to say, the drug called science. You likely don't fathom or understand the complexities or mechanics of even a watch. So I suppose I shouldn't think it's odd you may not be able to scale the intricacies up in your mind to have something mechanical be able to receive or give out and input from the outside world and function in a very similar way that mimics all the mechanical functions of your own body and mind
@@stevexracer4309 is your head up your ass for the warmth, or something else? Actually keep your answers to yourself please, I find low IQ inputs to a high IQ brain can dilute intellect so it's best to keep those things separate if you understand
A machine gun crossbow would be quite the achievement!
My best thought would be to utilize gears and a notched chain with stacked crossbows.
If you can get the links tight around a helix or figure 8 shape it may work.
Bssically the idea is to have 2 or more crossbows firing one at a time in sequence to reduce the odds of catastrophic failiure of the bow or string from over tension, kind of like a rotary gun.
In fact if you can get a fully functional feed box for bolts (i would suggest non-fletched flush tipped bolts to reduce jamming, and notched chain to allow timing the bolts with the further mechanisms to prevent overloading each bow) maybe a rotary style assembly of nested crossbows could be possible as after cocking the bolt only needs to be added just prior to firing.
Maybe utilize a drive shaft to rotate smaller cocking assemblies with the shaft also functioning as a rotator.
Each bow would need to be positioned to avoid overlapping, so the feed mechanism would probably have to be on the bow itself to direct the bolts with the bolt box above and offset to allow a modicum of accuracy.
It wouldn't be very accurate, but if you want accuracy you grab a sniper not a machine gun.
Also I'm not a bow maker so take my ideas with a grain of salt
its such a pleasure to watch someone working with hand tools. thanks.
Suggestions: add a flywheel to maintain continuous power, handcranked like older machineguns, convert the rotary motion of the flywheel into back and forth linear motion, and switch to a system where the bowstring is caught by a smaller internal catch in a rail on both sides of the arrow/bolt (moving the whole "magazine" is an inefficient use of energy), with a small ramp in the back that lifts the string out of the catch. If you want a trigger-type system, something like have the trigger engage a clutch between the flywheel and the rotary->linear system.
The bottom of the cartridge is V-shaped but it doesn't look like there is a corresponding V-shaped groove in the piece below it in the final clip at 15:00. That would improve it's function since it kept sliding out of place. It is nice though.
I think the original will have some kind of guide in the V that prevents slipping but in general it looks good and surprisingly easy to construct.
A few suggestions.
1) Weld a shovel handle onto the end of that iron handle you have now. At a slightly downward angle. That will give you move leverage for the rearming motion.
2) The shims only need to be a bit taller than the hole the bolts fire thru. basically if you dish the bottom of the magazine to a point just one bolt wide it should feed better but still hold a tone of ammo.
3) Sliding hinges to attach the body to the magazine.
4) This is just a thought but if you could add counter springs to the magazine, to help with the reload, you might be able to improve the draw strength maybe into the 80lbs range making it closer in power to a bow. it would probably need to be some form of coil spring to give it enough travel to work with the motion of the machine... but its worth a thought.
It was really cool when the slingshot channel built it. He has fully automatic versions.
I would like to tell you how to make a traditional bow in Korea. I want you to refer to the production method on TH-cam as well. It is not simply using the elasticity of wood and bamboo, but buffalo horn is also used, and please watch the video of making a traditional bow to create the best elasticity.
cool thing you made, no doubt, but 60lbs is not heavy at all. War weight bows are minimum 70lbs, often over 100lbs. Medieval crossbows were over 1200lbs. Something that big should be much heavier. The Korean ones from the painting are clearly using metal bows which would drastically increase the weight. The difference between the metal bows and the wood bows is you're using a much shorter stroke, so short draw, but much more power in a short range. Maybe look into building that next?
Really pleased your in touch with Jorge. How long before you’re saying “Let me show you it’s features”
13:00 Behold - the crotch-bow!
Andy saying "say hello to my little friend" really takes it to the next level too.
it is already fully automatic just like a gatling-gun, there is also Dionysius repeating catapult, the Gardener and Hotchkiss manual MGs
Some combination of a crank wheel pulling the bow back and releasing the bolts will do. From someone who built a working slingshot gun using lego parts and motors as a kid
I might suggest a technique that is used by people who construct bamboo flyfishing rods. They repeatedly heat, steam, and clamp the nodes on the bamboo culms, so that the nodes are flatter and stronger.
I was gonna suggest barrier blocks at the front of "stock" to keep bolt case from jumping track, but looking at the historical drawing u can see they did this but with the blocks on the case itself so that it remained on track no matter where it was
I'm impressed by how well the actual bow functions. A stacked bow of wood and twine is not a simple thing to make.
I’d say for a fully automatic look at the first Gatling gun. Use a lever that can spin with gears that would spin but pull the loader back and then as u spin forward release
You need guide shims all the way forward to keep the box in place.
Model 2 rework the box bottom with triangular shims fore, mid and aft to slowly feed the shafts.
This was so cool! I didn't know this kind of repeating crossbow exists. Now to create one in my d&d game!
Andy, you should put some guid rails in the front, for the magazine, so it doesnt wiggle to the sides when you slide it to the front
Andy, Townsends (17th century and so history + cooking + reenactment etc channel) have their main TH-cam focus which is revisiting and demonstrating historic concepts, tools, food, etc. But, they also have a side thing where they make products the way they'd have been produced in the 17th century or so and sell them. It's kind of a really unique thing. I think you could do the same now that you have all this experience and the real, actual, hand made tools that would be used to produce furniture, tools, etc, from various historical points. It would be really cool to see. I dunno if you already do that, but watching you put the pins in for the stand reminded me of very antique furniture designs.
Honey? The Neighbor shot out the window with the homemade 2000 year old crossbow again!
For the handheld versions of this crossbow the lack of power was combated with poison and they were also used more to allow foot soldiers to advance close enough to use melee weapons. Lines of soldiers would have these and advance while firing to force enemies to hunker behind their shields until they could be engaged with more standard weapons.
It's a neat concept but really I think a two man crew could be just as fast. At 60lbs, a guy could just pull the string back with both hands, aim it, and release once the second guy nocks the bolt.
A collab with the Slingshot Channel would be amazing, given this topic!
I would also find the idea interesting to use the whole thing like an english longbow. That is, in a tight formation of several devices with a fixed angle and then fire in volleys at an enemy arm. You would get around the problem of inaccuracy by focusing on distance, speed and volleys. The length of the bolt and weight could easily be made like that of an arrow for longbows. The draw weight comes in right in the range of English longbows at about 100 pounds. With longer levers, a higher draw weight would not be a problem. However, it would be lighter and faster than a ballista and could replace experienced archers with less experienced farmers. At least in fixed positions like castles.
HTME and Slingshot channel? That sounds freaking AWESOME
that went way better than I expected
It would be cool to see the crossbow that created China. My understanding is it was the first mass produced weapon with multiple parts that could be swapped between weapons so you could fix them in the field.
My vision of an automatic bolt/stone thrower would use a spinning wheel with a magazine above that would drop a bolt or stone that would be hurled by pegs on the wheel impacting the projectile. The wheel's power source could be a weight tied to cordage wrapped around the wheel's axle.
I feel like if you put 2 small guides on both sides on the front it should stop it from coming off of the track
You just made a 16-minute video highlighting engineering before computers. Back then, CAD stood for Conception, Adjustment, Design! You build it, find out why it doesn't work, fix that, rinse and repeat.
Geez watching his skills grow over time is really cool. I remember when he was hopeless even with modern tools, now he looks like a pro.
Got the opposite, a mini Crossbow in my Intro, love this things..and especialy how you dit it
Very 💪 !!!
Joerg Sprave would be proud of you :)
Videos like this make me want to get into wood working.
That is so freaking cool! It's pretty amazing seeing your skillets improve over the years!
Wow, that's actually really impressive!
How did I miss this?! This is so so cool! Very impressive for the first version.
Every other replica of the shu ka nu I’ve ever seen has been regular sized and was designed for speed and volume. Good idea to talk to Jeorg.
Thank you for "showing us it's features!"
One miss and opps, my neighbour - oh well. - maybe going somewhere without houses surrounding you could have been a good idea.
Great for a modern toy. Looks pretty cumbersome to use in period on the battlefield, which is probably why it didn't get much use. I'm wondering if a rotary action would give a better compromise between draw strength, reload speed and practicality than this linear reciprical one?
I would love for you to create an ornate one once you have the design down pat.
Andy, you're get so much better at making things. You've learnt a lot. 🙂👍
Ancient crank-powered gatling crossbow coming up, hype!
A pair of vertical guides at the very tip could help to prevent the 'barrel' from falling to the side, I think. With some pacers between them and the body, eliminating the possibility of friction.
Impressive build quality. I couldn't help but think of your neighbor and what I would think of this video if I knew you were shooting these giant darts towards my house with nothing keeping the darts from going over the fence and hitting anything on my side of the fence. LOL! good times.
My thoughts exactly
This is amazing. It’s so cool how far you’ve come on this whole journey. Your channel may not be all that well known but I feel like it is perhaps one of the most impressive out of all the channels on TH-cam
What about a middle step? Something like the first gatling/bailey, so, with a crank. Maybe the crank could be connected to something like the movement of steam trains. It should improve speed quite considerably by maintaining a bit of a better aim
Theres probably also an improvement on the draw as well if you use a crank, somewhere
Glad to see you are expanding your arsenal (of knowledge). Having this relate to archery adds to the appeal, for me at least.
Some notes related to your video (in no particular order):
You should have a dust collection system running every time you're using machines while woodworking. The small particulates are not only an issue for breathing in initially, but small enough particulate can lead to cancer. That being said, I'm still happy to teach Woodworking (even if some people call it a mini cancer factory).
Never, under any circumstance, dry fire a bow. Not only is it a very easy way of seriously damaging the bow, but it can also make the bow literally blow up in your face. Luckily, your bow did not blow up in your face or break (from what I can tell).
Your bow is also fairly light for a crossbow. I'm not sure how the weight will translate with how your design is, but 63 lbs on a modern crossbow would be a recurve or conventional bow with about a 25-30 lbs draw weight. It's not bad, and good for repeated shooting, but also not very heavy and possibly too light for safe hunting (not sure how fast bolts are coming out of your arrow and with what force). Your crossbow does have the same draw weight as my compound bow though, which isn't bad.
"*Literally* blow up" is a bit over the top, but it very likely could snap/fragment/break apart, with pieces flying into his face (and everywhere else). But as Gary said, dry firing a bow, of any kind, and any draw weight, is a very bad idea and shouldn't be done.
I agree the bow blowing up like an explosion is a bit extreme, though it's possible in very rare situations. The most likely thing to happen is parts of the bow will shatter or break and you'd have fragments of whatever it's made of embedded in you
I am so impressed by the amount of work that went into that crossbow just for one episode. 😊
Try using a highly massive fly wheel to store energy, attach the lever to a slider crank mechanism that transforms rotational motion to linear motion of the lever and bow string, then the rpm is just how fast you can spin the wheel and what gear ratio you use.
i was skeptical of this dude on his first video now i have some respect for the man after seeing him learn this in a few years
Next on How To Make Everything: How to select better lumber.
I saw on a show once there was a Roman Empire ballista that had a crank like a Gatling gun. I think it's called a Polybolas. There was a log with grooves in the middle that, as you turned the log, the string would draw back and load a bolt and fire.
I had started watching this series when you went from sticks and stones now you are to this great technological advancement great work keep it going love the videos
honestly a very impressive build montage