In a perfect system you could store/extract 9.8 joules per kilogram per meter dropped, average US home used 108 million joules in a DAY! Even if you hung a rock off the highest cliff in the world (mount thor) at a 1675m drop, you would still need a staggering 6500 kg rock travelling that entire distance up and down every day for one single home. And that weight grows exponentially as the potential height shrinks. These systems do somewhat exist in the form of hydroelectric plants and pump stations that can buffer grid demands throughout the day. But that's boring I want to see him do it your way.
People vastly overestimate how much energy can be stored using the gravitational field. You can only get sizeable amount of energy with *a lot* of mass. This is why gravitational energy generation is only effective with dams. Anything that is not using literally a lake equivalent of mass can barely recharge a phone.
@@canocholic There's already a guy that is recharging a phone using the water pouring down from his roof gutters when it rains. It's not terribly efficient, and yes, he can barely recharge a phone in the best case scenario. Look for Quint Builds. he is abolutely overengineering the thing
Yeah, I shoot, edit, and upload the video in Turkish first. Some mistakes slip through, but people in the comments catch them. Then, when i reshoot and edit for the English video, some scenes are shared, and i don't want to reshoot, so i try to make the best with what i have with some editing and voiceovers
Dude, until you mentioned you had 130 subs at the end I thought I was watching a channel with 10's of thousands of subs at least. Great work, great video, keep it up man.
I think to actually accomplish this you'd need 1. Pedal power, hand power will not get you to the speed of sound 2. Aluminum final stage, plastic cannot spin at the speed of sound without shattering, aluminum and steel have a much higher top speed. 3. Different types of bearings for each stage, you'll need some exotic bearings for the last stage, and strong bearings for the first.
Have your frame being in a more stable position, like making one with the planet instead of putting it on some oscillating folding table will definitively help to crank harder too
i'm glad your turkish video took off and inspired you to make this english one, because it was fantastic. the way you edited everything together, these 17 minutes flew by. simple, fun, and silly in places which i always appreciate. don't stop! cheers from alaska
if you keep making more stuff like this where you actually explain the math simply and straightforwardly for cool physics projects you will quickly become one of my favorite youtube channels
Thank you. This is actually still a summary, believe it or not. Had to remove some parts since it was getting too long, and I'm not good enough at editing to tackle a longer video than this. I'm learning tho. Hopefully, I'll get better.
If you wanna stick with plastic even for the final stage of the geartrain, you could try switching to nylon 66 filament with either glass or carbon fiber filler. Print it with 100% infill, cover it in plaster of paris, and bake it in the oven to reflow the plastic for 100% perfect layer adhesion. If it's strong enough to make a 3D printed freedom dispenser, that's probably strong enough to take the stress of high speed. Also, lubrication is a good idea, the friction's gonna cook the gear teeth in the higher stages and contribute to their explode-y tendencies.
this is so freaking cool, you definitely deserve more views on this! I love how you explain all of the calculations and the logic behind why gear ratios work.
very interesting video! and very informative too. Most of this stuff I had heard before, but the thing about defects in the teeth meeting in the same place and therefore wearing the same place down was something I hadn't ever thought of.
Very well done and methodical. I appreciate how you break down each step of your process and explain everything. I will watch a video for a long time if it has a flow of content that is pertinent to the subject of the video. I click on a video because it asks a question and provides an answer or because it is an answer to a question I’ve already asked myself. I like a video when it has a good answer or solution to the question and it has me captivated throughout the video. I don’t care about gears, but I like this video. I learned something and your video didn’t have pointless content. I hope this helps you in some way.
Great work! Nice to see some more TH-cam emerging in this sector. Just need to package it into the worlds fastest salad spinner and I'm sure you'll go viral.
Cool video on helical gearing and the limits of 3D printed material. This video also reminded me of a good friend I had that was from Turkey. He came to U.S. and opened a local Store. However he was only here in U.S. for 5 years then he moved back to Turkey. That guy was cool to hangout with and taught me so much about his culture.
I’ve never seen your channel before - you’re so great! I’d love to see a part II of this taking into account some of the suggestions. I want to see you hit the speed of sound!
..think of safety , if the thing explode well its alot of energy there thought , anyway , dont worry about your english its great bro , and im european so i talk same you about . you have a subscriber here indeed , and i look forward for new "projects" to come in future .
I would forget about the hand crank and instead convert an exercise bike for the drive. With your legs, you can exert more force, and you can use both of them simultaneously. Moreover, you can also exert force by pulling your legs up if your feet are strapped to the pedals. I would also lubricate the gears with PTFE, use strong steel bearings at the front, and fine, fast-spinning ceramic bearings at the end. However, it's a great idea and a very good video!
Bike cranks are the way to go, definitely. But i don't have the tools to build such a thing. Maybe if the channel grows, it can fund the next iteration.
Hey you're doing pretty good. Your English is also fine. Looking forward to seeing new stuff, even if it's infrequent, love the explaining you do. Also, I appreciate you didn't intentionally mess up build quality for jokes, you were keeping with the goal without wasting the viewers time. Excellent work.
More please ... love to see you get to the speed of sound. Maybe print the gears at 100% infill for the gear teeth an a few mm into the hub. Maybe PETG plastic as it's slippery and stronger. The gears will generate heat at those speeds. Love the rig ... I think you have something here that you could build on.
I am really shocked you are not a much larger channel than you already are. I think your videos are good being as long as they are, for engineering content I feel its always better to go longer than shorter. I'd say if you keep this up for another year or two and you will quickly gain a massive following. Im shocked I was only the 717th subscriber. Ypu are going places my dude and I wish you all the best! Stay confident and do not lose faith because your creative skills will get you there!
This was really cool, thanks for sharing. I didn’t know what that style of gear was called, but I’ve printed them before. A little bit of grease can really help 3D printed gears!
It is an amazing video , good job with it. You seem so genuine and interested in this topic which really is something special. Hoping to see more videos about interesting topics from you. I really love when individuals come up with experiments and ideas that are really interesting and for me , it is something that i wanna see. Learnt a lot of new information from this one. Thank you for doing this.
Thats a cool vid! I got some changes for you tho. Firstly, use a new table. A lot of the force you are putting into it is shaking the table and lowering your output. Use a big rock if you have to. Secondly, if you can I recommend using a vaccum chamber. The faster something moves the more air resistance that thing needs to overcome. Having no air resistance would make it easier to spin the gears. You'll have to make a custom chamber, with only the handle outside, but you can do it! Hopefully... Thirdly, thicker teeth. Your gears are shearing, thicker teeth can handle higher tolerances. Fourthly, keep everything suuuper tight together, you want no play in your teeth at all so it doesn't slip. I believe there was a formula that makes teeth making much easier. Fifth, press your bearings into the holes using a press, the tighter the better. Sixth, bigger handle = more torque. You want something that you can barely push at max speed, otherwise you'll be bottlenecked by your own max speed. Feet are faster but that just means you'll reach that max speed faster. I actually say to bolt your feet down and rotate a huge crank with your whole body hahaha. Loony tunes style. But basically make it really difficult to start up, rules of inertia state that things like to stay in motion, so as long as you output the same acceleration as you started, you'll get some crazy speeds without reaching your personal mechanical speed limit. That's about it. A different commenter has already mentioned other changes you can do so I didn't bring those up.
The algorithm just decided to boost the hell out of your channel didn't it? Glad to see it! Watched from start to finish, I do think you should keep working on it
Something like a Huygens mechanism would help smooth out the cranking and probably let you use a lower initial torque. Of course then you'd need to have gear teeth that can stand up to a heavy weight essentially hanging off them.
I bet you could make a hand-cranked centrifuge using this project. Being able to (with the exception of the bearings) entirely 3D print a centrifuge instead of buying one would be cool.
I think you could go about this a different way. Whips go at the speed of sound using angular momentum You could make a flexible shaft of connected gears, then put it in a whip motion Also you could make the output gear have a really long wire sticking out which would go a lot faster
Only 1.28k subscribers? That's surprising. Good luck on your TH-cam endeavor! You'll do great. I highly recommend investing in a lapel mic. It'll make a night and day difference when you're doing the explanation in the living room.
Compact discs have a known speed limit. I realize you want to keep the gear count low, but, increasing it may have some benefit. One being reduced torque required to spin it, also increasing longevity of parts. Marking the gear with a sharpie will make frame counting easier. Also, using a higher frame rate. Find some graphite. Perfect lube for gears and bearings in this particular experiment.
For this project, I didn't have the budget for anything more tbh. A sharpie would be useful for sure. My phone can't do 4k 60fps, so I had to use 30 since i didn't use the footage just to measure it is the same footage on the video.
@@canocholic Fair enough. I would have forgiven it not being 4k. Could have had some fun making fun of lower resolutions, too. I could have sworn I saw a GoPro or Osmo Action in there.
@@tobins6800 Its a Xiaomi yi it can shoot 120fps at 720p but you need a lot of light. Even in overcast summerdays the footage you get at 120fps is too dark to see anything properly. I'm currently unemployed, couldn't find a job in the last couple of months so I started this channel. If it grows enough to earn money I'll invest in better equipment. The project cost me about 70-80$ with about 200$ I could build a much better system with the same design but better materials, thicker gears etc. Also video making is quite harder than I expected, I'll get better at that overtime aswell.
Really informative video. Can you please make a video about the resources and tutorials you used or just give them in the description. Sorry for the inconvenience. Also you don't have to do it if uou don't don't want to.
Hi, I don't really have a recourse list that i keep tidy. But i learned a lot from Paul McWhorter's channel back in the day. I would definitely recommend that one.
if the goal is pure speed with no load, consider disks with no teeth for minimal drag and minimal contact friction, and strength for the faster stages. It also serves as a decoupling clutch should anything go wrong. 3D printing might be adding a weak and overcomplicated step if all you need is a disk.
I cannot fathom the thought process that led you to create an aluminium frame, that is bolted to the table, but then do that on a table is super unstable :D
I'm still here! I wouldn't happily watch more long videos about gears 😂 you need a sturdier table, though!! All that shaking is undermining your winding efforts!
Speed of sound. ... Once you break the sound barrier, I wonder what kind of snap or boom it'll make. I often see people using their arms to crank a lever, but why not apply a foot powered flywheel pedal? You could apply your full body weight into the driving gear, or go beyond that by standing on the pedal and lifting up on a solid bar mounted to the room. Body weight + arm strength = force down on pedal, connected to gearbox. Might even add another gear if you can apply that kind of force. Some videos about capstan drives came up, so I chatted with an AI. You might try setting up Capstan gears for your driving wheels for high torque, then transmit to tooth gears for the high speed. Summary of chat, the tooth gear would break way before a rope would snap. Not sure how the smaller gears will handle the higher speed force though.
Hi, pedals would definitely help, but it would require metal structure. I don't currently own a welder or even a saw. If the channel grows enough to support the projects, i am thinking of trying again with pedals and stronger gears.
Yo very cool video I bet your channel is gonna do well if you keep at it. It would be nice to have better audio for your voice as a viewer but you already have the good video part figured out and that's the important thing. I wish you luck on your journey, and I hope you can keep it up long enough to see it pay off.
Great video. I remember doing some napkin math to see how fast a cutting disk spins and fpund that I could probably get that fast if I put a saw blade on it but never tried.
I disagree, the table wobbles so much because the force I'm applying is varying a lot. A counterweight would help a little but would not solve the problem. Hand cranking at high speed is just not a smooth motion.
Entertaining presentation and we get to see every step as well as your thought process. What more can you ask for in a video about gears, right? ;) But seriously, good video from start to finish. Would be cool to see more from you
Bro, you should be sure to use an even number of teeth on either the pinion or gear and an odd number on the other. It doesn't seem like a big deal, but it much better distributes wear and heat build up. I would also suggest perhaps have the gear immersed in an oil sump or some sort of lubricant, however be cognizant that 3d printed plastic will rapidly absorb the oil, swell and degrade so if you do this you'll only get a few shots. Perhaps impregnating the teeth with graphite would be more durable, but my god I have nightmares about graphite residue getting into carpets and staining stuff!
Hi, since the gears are not working for a long time, heat build-up is not a problem. But thick oil would increase friction a lot. Also, for the fast spinning gears, not much can hold on to them while they are spinning that fast. I used thin oil, but i didn't film it.
Well since the gear box needs to be faster, there is the issue of the plastic gears with moment of inertia, if you reduce the ratio and thus the moment of inertia after each ratio set, you could possibly reach a higher speed as their is inertia and better speed for same energy, although this would only get you so far, you might have to look at a lighter approach or gear box set, like those ecliptical gears that hav a 1:any based on your own input.
do 1:4 ratio from the handle to first gear then into a worm gear to run the next gear, it has extremly high torque which helps with doing extreme ratios
Great video, thanks for making it! I guess you can just make the final wheel bigger, and that will get you past the speed of sound! If you had a smoke machine setup, perhaps you’d even see some sonic booms appear :)
Hi, in this system, the diameter of the disc is limited. Since I'm using two parallel rods to mount the gears. If the disc is any bigger, it will hit the other rod. A smoke machine would be cool it creates a lot of airflow.
The last gear will spin fastest at the outer edge, meaning the wider the gear, the faster the outer part will go, so that’s a relatively easy way to go faster without too much extra engineering.
Congratulations on setting the speed record! Even though you didn't reach the speed of sound, >800kph is very impressive. I'm curious why you measured the crank speed and did math instead of directly measuring the output gear speed. I would have put a black dot on it and used a light sensor. And that flimsy table was scary! Anyway, great video - was not too long and I enjoyed following your explanations of the math. Very clear I thought. Please keep going - the world needs to hear a sonic boom made by gears!
Hi, i measured the first gear since the other gears are spinning too fast for my phone's camera. At 30 fps, you can't reliably musure more than 900rpms. Even 900 is a stretch. Had to use my phone since i don't have a handheld tachometer. Or any other sensor for that matter.
Mount your gearbox on a SOLID base. You can transfer more energy. With a heavier crank handle you can amplify your energy density. You can multiply rotation by adding a heavy flywheel to the input gear ??? 🙏🚂🎼🌹🎵🎶⚕️🛠~C< 3)>>-Z->}
I think you should have lubricated the gears to have less friction. Your idea of adding a pin to the crank to eliminate is good but I don't know if you will be able to drill through it as it's hardened steel. It was a nice video and with some improvements I think you can reach Mach 1 👍👍
I actually did put on some oil it's just not on the video. It's hard to film and do stuff at the same time, but I'm getting better at it. With a drill press, i believe it's not too hard to do, but i currently don't have one or don't know anyone who'll let me use theirs. If the channel grows a bit, I'm sure it will be easier to get my hands on the equipment i need.
@canocholic ok ok nice then 👍 but you will need a special drill that harder than hardened steel or else it won't cut through it cleanly. I have machined hardened steel and it's not easy at all without the right tools. I hope that you will reach the speed of sound with gears 😎😎
You may have better luck with your gears if you print them in nylon. Overture Easy Nylon is pretty easy to use, and it's stupid strong. I use it for a pair of AFO leg braces that I designed for myself. No breaks. I don't recommend the carbon fiber stuff though. Layer adhesion isn't great.
Mount it to a heavy workbench or something. Its bouncing all over the place. The bouncing could be why the bearing came out, and as you suspected, why the gear broke. I think faster speeds are still possible.
New challenge. Gravity battery from very heavy weight. How long can you power your house by ever-so-slowly dropping a massive boulder down a cliff?
In a perfect system you could store/extract 9.8 joules per kilogram per meter dropped, average US home used 108 million joules in a DAY! Even if you hung a rock off the highest cliff in the world (mount thor) at a 1675m drop, you would still need a staggering 6500 kg rock travelling that entire distance up and down every day for one single home. And that weight grows exponentially as the potential height shrinks. These systems do somewhat exist in the form of hydroelectric plants and pump stations that can buffer grid demands throughout the day. But that's boring I want to see him do it your way.
I don't think you can power your house, but i may try charging a phone.
People vastly overestimate how much energy can be stored using the gravitational field. You can only get sizeable amount of energy with *a lot* of mass. This is why gravitational energy generation is only effective with dams. Anything that is not using literally a lake equivalent of mass can barely recharge a phone.
@@canocholic There's already a guy that is recharging a phone using the water pouring down from his roof gutters when it rains. It's not terribly efficient, and yes, he can barely recharge a phone in the best case scenario. Look for Quint Builds. he is abolutely overengineering the thing
there's a really funny video about a scam scheme to provide energy storage using tower cranes to stack concrete blocks
i liked the mechanical descriptions and the fact you left the smaller mistakes and even explained them, not a lot of bigger creators do that
Yeah, I shoot, edit, and upload the video in Turkish first. Some mistakes slip through, but people in the comments catch them. Then, when i reshoot and edit for the English video, some scenes are shared, and i don't want to reshoot, so i try to make the best with what i have with some editing and voiceovers
Dude, until you mentioned you had 130 subs at the end I thought I was watching a channel with 10's of thousands of subs at least. Great work, great video, keep it up man.
Thank you so much, glad you enjoyed it.
I think to actually accomplish this you'd need
1. Pedal power, hand power will not get you to the speed of sound
2. Aluminum final stage, plastic cannot spin at the speed of sound without shattering, aluminum and steel have a much higher top speed.
3. Different types of bearings for each stage, you'll need some exotic bearings for the last stage, and strong bearings for the first.
I agree with you.
Also: Lube the gears. Less for the reduced resistance, but for the longevity of the gears.
@@Donnerwampyeah, bro needs to oil up
Have your frame being in a more stable position, like making one with the planet instead of putting it on some oscillating folding table will definitively help to crank harder too
TRUE
i'm glad your turkish video took off and inspired you to make this english one, because it was fantastic. the way you edited everything together, these 17 minutes flew by. simple, fun, and silly in places which i always appreciate. don't stop! cheers from alaska
Thanks a lot, I'm glad you liked it!
if you keep making more stuff like this where you actually explain the math simply and straightforwardly for cool physics projects you will quickly become one of my favorite youtube channels
You should make counter weight to the crankshaft, to eliminate wobbling
should have put it on the damn chair instead of whatever that is
Also mount it on a sturdier platform
I like your style, you are describing literally everything.
Thank you. This is actually still a summary, believe it or not. Had to remove some parts since it was getting too long, and I'm not good enough at editing to tackle a longer video than this. I'm learning tho. Hopefully, I'll get better.
If you wanna stick with plastic even for the final stage of the geartrain, you could try switching to nylon 66 filament with either glass or carbon fiber filler. Print it with 100% infill, cover it in plaster of paris, and bake it in the oven to reflow the plastic for 100% perfect layer adhesion. If it's strong enough to make a 3D printed freedom dispenser, that's probably strong enough to take the stress of high speed. Also, lubrication is a good idea, the friction's gonna cook the gear teeth in the higher stages and contribute to their explode-y tendencies.
You did the unthinkable! This is the video i wanted! not the crappy yt vids that didn't rotate the gears fast! YOU EARNED A SUB!
Glad you enjoyed it!
@ I did indeed enjoyed it! Keep making this cool edits!
With the amount of really neat details you've described in this video, Really don't mind the long duration. Was worth every second of it.
somebody buy this man a workbench! :D great video dude!
this is so freaking cool, you definitely deserve more views on this! I love how you explain all of the calculations and the logic behind why gear ratios work.
Thank you! I'm glad you enjoyed the video.
9:47 The individual gears don’t need a prime number of teeth. The two numbers just need to be relatively prime, like 15 & 58.
True. You could just choose one number that is prime, and the other number can be anything you want, so you can use that to get the best gear ratio.
I choose prime numbers in case if i use the gears in another project. Juts to be sure they'll be relatively prime wherever.
very interesting video! and very informative too. Most of this stuff I had heard before, but the thing about defects in the teeth meeting in the same place and therefore wearing the same place down was something I hadn't ever thought of.
hunting vs non hunting... pretty standard.
its even worse with chain drives...
Very well done and methodical. I appreciate how you break down each step of your process and explain everything. I will watch a video for a long time if it has a flow of content that is pertinent to the subject of the video. I click on a video because it asks a question and provides an answer or because it is an answer to a question I’ve already asked myself. I like a video when it has a good answer or solution to the question and it has me captivated throughout the video. I don’t care about gears, but I like this video. I learned something and your video didn’t have pointless content. I hope this helps you in some way.
Always nice when someone gets me interested in math and shows where that math I've learned could be useful.
I thought for sure that you would have way more than 60 subscribers! Nice video!
Thank you
You taught me a better way to think about gears and described your process as you did it, good video
Thanks for the feedback, I hope you enjoyed the video!
Very high quality Video. Love it. Keep going man.
I definitely would prefer English videos and yes,these type of lenght is perfect
I didn't know about the prime number of teeth on gears helping reduce wear. Great explanation!
Great work! Nice to see some more TH-cam emerging in this sector. Just need to package it into the worlds fastest salad spinner and I'm sure you'll go viral.
Thanks for your kind words. That would be really fun to build.
Cool video on helical gearing and the limits of 3D printed material. This video also reminded me of a good friend I had that was from Turkey. He came to U.S. and opened a local Store. However he was only here in U.S. for 5 years then he moved back to Turkey. That guy was cool to hangout with and taught me so much about his culture.
Always keep reaching to discover! Bravo brother
breaking the speed barrier is the type of shit i'd be doing at 2am on a school night
This was an awesome video! I really like your presentation style. I hope you keep making videos :)
I’ve never seen your channel before - you’re so great! I’d love to see a part II of this taking into account some of the suggestions. I want to see you hit the speed of sound!
..think of safety , if the thing explode well its alot of energy there thought , anyway , dont worry about your english its great bro , and im european so i talk same you about . you have a subscriber here indeed , and i look forward for new "projects" to come in future .
Thank you, I will. I'm wearing eye protection and headphones. But you're definitely right it can be dangerous.
Investing early since this gem of a channel is awesome!
I would forget about the hand crank and instead convert an exercise bike for the drive. With your legs, you can exert more force, and you can use both of them simultaneously. Moreover, you can also exert force by pulling your legs up if your feet are strapped to the pedals. I would also lubricate the gears with PTFE, use strong steel bearings at the front, and fine, fast-spinning ceramic bearings at the end.
However, it's a great idea and a very good video!
Bike cranks are the way to go, definitely. But i don't have the tools to build such a thing. Maybe if the channel grows, it can fund the next iteration.
I like the long format. Thanks!
Hey you're doing pretty good. Your English is also fine. Looking forward to seeing new stuff, even if it's infrequent, love the explaining you do. Also, I appreciate you didn't intentionally mess up build quality for jokes, you were keeping with the goal without wasting the viewers time. Excellent work.
Thank you
Just keep being you brother! Ill watch anything you put out from here on
Appreciate that, man!
More please ... love to see you get to the speed of sound. Maybe print the gears at 100% infill for the gear teeth an a few mm into the hub. Maybe PETG plastic as it's slippery and stronger. The gears will generate heat at those speeds. Love the rig ... I think you have something here that you could build on.
Instantly subscribed 😂 I wanna be here to watch you blow up to a huge channel with big numbers. Great work my guy!!
For reasons I will not mention here, I can tell you this. If you keep producing this kind of content, you will be successful.
I am really shocked you are not a much larger channel than you already are. I think your videos are good being as long as they are, for engineering content I feel its always better to go longer than shorter. I'd say if you keep this up for another year or two and you will quickly gain a massive following. Im shocked I was only the 717th subscriber. Ypu are going places my dude and I wish you all the best! Stay confident and do not lose faith because your creative skills will get you there!
Thanks, I'm trying my best, I'm glad you liked it!
You've got to go all the way. Awesome concept.
man wasnt confidant about the views and got 11k, loved the video bro keep up the good work
i think this is a good video length, covered all the important details and was a fun experiment to watch.
This was really cool, thanks for sharing. I didn’t know what that style of gear was called, but I’ve printed them before.
A little bit of grease can really help 3D printed gears!
It is an amazing video , good job with it. You seem so genuine and interested in this topic which really is something special. Hoping to see more videos about interesting topics from you. I really love when individuals come up with experiments and ideas that are really interesting and for me , it is something that i wanna see. Learnt a lot of new information from this one. Thank you for doing this.
Fantastic video and very informative and entertaining. This is a great length for the video!
Great vid! No bs, wholesome, and great methodology
Thats a cool vid! I got some changes for you tho.
Firstly, use a new table. A lot of the force you are putting into it is shaking the table and lowering your output. Use a big rock if you have to.
Secondly, if you can I recommend using a vaccum chamber. The faster something moves the more air resistance that thing needs to overcome. Having no air resistance would make it easier to spin the gears. You'll have to make a custom chamber, with only the handle outside, but you can do it! Hopefully...
Thirdly, thicker teeth. Your gears are shearing, thicker teeth can handle higher tolerances.
Fourthly, keep everything suuuper tight together, you want no play in your teeth at all so it doesn't slip. I believe there was a formula that makes teeth making much easier.
Fifth, press your bearings into the holes using a press, the tighter the better.
Sixth, bigger handle = more torque. You want something that you can barely push at max speed, otherwise you'll be bottlenecked by your own max speed. Feet are faster but that just means you'll reach that max speed faster. I actually say to bolt your feet down and rotate a huge crank with your whole body hahaha. Loony tunes style. But basically make it really difficult to start up, rules of inertia state that things like to stay in motion, so as long as you output the same acceleration as you started, you'll get some crazy speeds without reaching your personal mechanical speed limit.
That's about it. A different commenter has already mentioned other changes you can do so I didn't bring those up.
I appreciate your detailed feedback and advice, I'll see what I can do in the next videos! This was the best i could do with the budget i had.
nice video! i think the video length was perfect and you did a great job explaining everything 👏👏👏
Great video, I’ve subscribed and look forward to seeing what you do next!
The algorithm just decided to boost the hell out of your channel didn't it? Glad to see it! Watched from start to finish, I do think you should keep working on it
awesome video, I was shocked when I saw ur channel is small, u deserve a loot more!
Something like a Huygens mechanism would help smooth out the cranking and probably let you use a lower initial torque. Of course then you'd need to have gear teeth that can stand up to a heavy weight essentially hanging off them.
Happy you popped up on my feed. Subbed and looking forward to more. Great job!
Holy shit. The gear wearing by using uncommon factors blew my mind.
I bet you could make a hand-cranked centrifuge using this project. Being able to (with the exception of the bearings) entirely 3D print a centrifuge instead of buying one would be cool.
I would definitely watch another video on this subject
Thankyou for doing an English video, this is very cool.
I would love to see a follow up video using all the suggestions in the comments to improve your project
Amazing video
I think you could go about this a different way.
Whips go at the speed of sound using angular momentum
You could make a flexible shaft of connected gears, then put it in a whip motion
Also you could make the output gear have a really long wire sticking out which would go a lot faster
this video needs to blow up!
Only 1.28k subscribers? That's surprising. Good luck on your TH-cam endeavor! You'll do great. I highly recommend investing in a lapel mic. It'll make a night and day difference when you're doing the explanation in the living room.
Compact discs have a known speed limit.
I realize you want to keep the gear count low, but, increasing it may have some benefit. One being reduced torque required to spin it, also increasing longevity of parts.
Marking the gear with a sharpie will make frame counting easier. Also, using a higher frame rate.
Find some graphite. Perfect lube for gears and bearings in this particular experiment.
For this project, I didn't have the budget for anything more tbh. A sharpie would be useful for sure. My phone can't do 4k 60fps, so I had to use 30 since i didn't use the footage just to measure it is the same footage on the video.
@@canocholic Fair enough. I would have forgiven it not being 4k. Could have had some fun making fun of lower resolutions, too. I could have sworn I saw a GoPro or Osmo Action in there.
@@tobins6800 Its a Xiaomi yi it can shoot 120fps at 720p but you need a lot of light. Even in overcast summerdays the footage you get at 120fps is too dark to see anything properly. I'm currently unemployed, couldn't find a job in the last couple of months so I started this channel. If it grows enough to earn money I'll invest in better equipment.
The project cost me about 70-80$ with about 200$ I could build a much better system with the same design but better materials, thicker gears etc.
Also video making is quite harder than I expected, I'll get better at that overtime aswell.
Nice one man, no problem everything was understandable and sweet, love from india.
Table wobbling can be reduced by counter-balancing your crank-arm. Put a weight on the other side of the shaft.
Really informative video. Can you please make a video about the resources and tutorials you used or just give them in the description. Sorry for the inconvenience. Also you don't have to do it if uou don't don't want to.
Hi, I don't really have a recourse list that i keep tidy. But i learned a lot from Paul McWhorter's channel back in the day. I would definitely recommend that one.
The 3d prints are nice for POC , I would like to see this done with parts from 2 used automatic car transmissions. Great video!
I may do it again with metal gears, but for this video, it was definitely out of budget.
Absolutely love the video! Keep up the great work man!!
Thank you so much, I'm glad you enjoyed it!
Love the video and the way you explained things!
Thank you, I'm glad you enjoyed it!
Keep grinding, I would absolutely watch your short videos, I usually watch longer videos about less interesting stuff
if the goal is pure speed with no load, consider disks with no teeth for minimal drag and minimal contact friction, and strength for the faster stages. It also serves as a decoupling clutch should anything go wrong. 3D printing might be adding a weak and overcomplicated step if all you need is a disk.
I cannot fathom the thought process that led you to create an aluminium frame, that is bolted to the table, but then do that on a table is super unstable :D
It's the table i had, better than no table at all. The frame will be used for other projects as well, so i could justify building it.
@canocholic for sure, super cool regardless!
I'm still here! I wouldn't happily watch more long videos about gears 😂 you need a sturdier table, though!! All that shaking is undermining your winding efforts!
after so much planning and calculation bro really chose the most unstable table in the universe to mount the contraption on lol
Speed of sound. ... Once you break the sound barrier, I wonder what kind of snap or boom it'll make.
I often see people using their arms to crank a lever, but why not apply a foot powered flywheel pedal? You could apply your full body weight into the driving gear, or go beyond that by standing on the pedal and lifting up on a solid bar mounted to the room. Body weight + arm strength = force down on pedal, connected to gearbox. Might even add another gear if you can apply that kind of force.
Some videos about capstan drives came up, so I chatted with an AI. You might try setting up Capstan gears for your driving wheels for high torque, then transmit to tooth gears for the high speed. Summary of chat, the tooth gear would break way before a rope would snap. Not sure how the smaller gears will handle the higher speed force though.
Hi, pedals would definitely help, but it would require metal structure. I don't currently own a welder or even a saw. If the channel grows enough to support the projects, i am thinking of trying again with pedals and stronger gears.
@canocholic bicycle(s). Sources to check would be bicycle shops, exercise equipment, paddle boats. Who knows maybe they'll want to partner.
Yo very cool video I bet your channel is gonna do well if you keep at it. It would be nice to have better audio for your voice as a viewer but you already have the good video part figured out and that's the important thing. I wish you luck on your journey, and I hope you can keep it up long enough to see it pay off.
better audio and pacing. its not a short. no need to talk a mile a minute.
I'll try my best to improve my audio quality. Thanks for the support!
this was amazing, i thought you had like 50k subs or something, i really enjoyed it.
Even if this doesn't explode I loved the video.
Very entertaining and well explained.
Great video. I remember doing some napkin math to see how fast a cutting disk spins and fpund that I could probably get that fast if I put a saw blade on it but never tried.
I disagree, the table wobbles so much because the force I'm applying is varying a lot. A counterweight would help a little but would not solve the problem. Hand cranking at high speed is just not a smooth motion.
Entertaining presentation and we get to see every step as well as your thought process. What more can you ask for in a video about gears, right? ;) But seriously, good video from start to finish. Would be cool to see more from you
Keep it up man that was great !
Cool vid! I found some gold in the youtube. Like your style)
Bro, you should be sure to use an even number of teeth on either the pinion or gear and an odd number on the other. It doesn't seem like a big deal, but it much better distributes wear and heat build up. I would also suggest perhaps have the gear immersed in an oil sump or some sort of lubricant, however be cognizant that 3d printed plastic will rapidly absorb the oil, swell and degrade so if you do this you'll only get a few shots. Perhaps impregnating the teeth with graphite would be more durable, but my god I have nightmares about graphite residue getting into carpets and staining stuff!
Hi, since the gears are not working for a long time, heat build-up is not a problem. But thick oil would increase friction a lot. Also, for the fast spinning gears, not much can hold on to them while they are spinning that fast. I used thin oil, but i didn't film it.
Well since the gear box needs to be faster, there is the issue of the plastic gears with moment of inertia, if you reduce the ratio and thus the moment of inertia after each ratio set, you could possibly reach a higher speed as their is inertia and better speed for same energy, although this would only get you so far, you might have to look at a lighter approach or gear box set, like those ecliptical gears that hav a 1:any based on your own input.
do 1:4 ratio from the handle to first gear then into a worm gear to run the next gear, it has extremly high torque which helps with doing extreme ratios
Finally a good tech TH-camr that I can watch grow and grow along side
Do you have a Discord??
Ps longer videos
Thank you. Discord is currently banned it Turkey, unfortunately.
Would a solid table help?
Definitely
Great video, thanks for making it!
I guess you can just make the final wheel bigger, and that will get you past the speed of sound!
If you had a smoke machine setup, perhaps you’d even see some sonic booms appear :)
Hi, in this system, the diameter of the disc is limited. Since I'm using two parallel rods to mount the gears. If the disc is any bigger, it will hit the other rod.
A smoke machine would be cool it creates a lot of airflow.
Magnetic drives (which are expensive, but you could possibly make them cheaper) might help prevent friction issues.
Great Vid I hope you make it big
informative, keep up the good work
I loved the pacing of the video!
You got to secure the bearings so they won't come out like a plate over them to secure them cool video
The last gear will spin fastest at the outer edge, meaning the wider the gear, the faster the outer part will go, so that’s a relatively easy way to go faster without too much extra engineering.
Yeah, not really. If the disc was any bigger, it would start touching the other rod.
Congratulations on setting the speed record! Even though you didn't reach the speed of sound, >800kph is very impressive. I'm curious why you measured the crank speed and did math instead of directly measuring the output gear speed. I would have put a black dot on it and used a light sensor. And that flimsy table was scary! Anyway, great video - was not too long and I enjoyed following your explanations of the math. Very clear I thought. Please keep going - the world needs to hear a sonic boom made by gears!
Hi, i measured the first gear since the other gears are spinning too fast for my phone's camera. At 30 fps, you can't reliably musure more than 900rpms. Even 900 is a stretch. Had to use my phone since i don't have a handheld tachometer. Or any other sensor for that matter.
this was epic. you rock dude😎
Mount your gearbox on a SOLID base. You can transfer more energy. With a heavier crank handle you can amplify your energy density. You can multiply rotation by adding a heavy flywheel to the input gear ??? 🙏🚂🎼🌹🎵🎶⚕️🛠~C< 3)>>-Z->}
I think you should have lubricated the gears to have less friction. Your idea of adding a pin to the crank to eliminate is good but I don't know if you will be able to drill through it as it's hardened steel. It was a nice video and with some improvements I think you can reach Mach 1 👍👍
I actually did put on some oil it's just not on the video. It's hard to film and do stuff at the same time, but I'm getting better at it. With a drill press, i believe it's not too hard to do, but i currently don't have one or don't know anyone who'll let me use theirs.
If the channel grows a bit, I'm sure it will be easier to get my hands on the equipment i need.
@canocholic ok ok nice then 👍 but you will need a special drill that harder than hardened steel or else it won't cut through it cleanly. I have machined hardened steel and it's not easy at all without the right tools. I hope that you will reach the speed of sound with gears 😎😎
Great video you got my like and subscribe!
You may have better luck with your gears if you print them in nylon. Overture Easy Nylon is pretty easy to use, and it's stupid strong. I use it for a pair of AFO leg braces that I designed for myself. No breaks. I don't recommend the carbon fiber stuff though. Layer adhesion isn't great.
Mount it to a heavy workbench or something. Its bouncing all over the place. The bouncing could be why the bearing came out, and as you suspected, why the gear broke. I think faster speeds are still possible.
44k in 2 days haha congrats!
I'm surprised it's getting so many views!