J-N-H-M, he can't know, since a UFO is an Unidentified Flying Object, and not necessarily an Alien spacecraft. It seems these days people use the term UFO when what they really mean is Alien spacecraft. Just because an object is unidentified to the observer does not mean it is extraterrestrial. It could simply be a man made craft that the observer is unaware of, like a secret spy plane, for instance.
I recently saw this type of gearing used in a kinetic sculpture made out of LEGO. The workaround for excessive friction in that environment is simply to use a bigger motor and change the batteries more often. I suppose you could also use this sort of thing to mill grain into flour. In that kind of mill the goal is to slide two hard surfaces across each other.
This brought a huge smile to my face. I 'always' knew this was possible but this is the first time I actually have seen the same gears do the impossible thing. Absolutely brilliant stuff.
the trick is that the gears are spirals, fairly steeply spiralled. when close together the drive between gears is perpendicular to the axis, as per traditional cogs, but when further apart the drive is parallel to the axis. the person who commented that they are like worm gears was actually not far wrong.
he shows the diagrams in 2 dimensions and its one gear spinning alone…watching the actual gears, it makes sense how this works. it's really cool. mind blowing actually, i always wondered how to get two gears to spin the same way.
Part of the explanation is missing. Two flat gears, rotating the same direction, do not interfere with each other, do not touch each other, and do not transmit power. But when the flat gear is formed into a helix, as shown here, the upward movement of one helix forces the upward movement of the neighboring helix, causing both gears to rotate in the same direction. This video shows the "not interfering with each other" part, but neglects to mention the helix contact point part.
This is pretty cool.. as a lay person I have no idea what the bit about the "rope" means.. and I would love to understand why they can/are moving in the same direction..
To me, it seems that the different-direction movement comes from a symmetrical "push" effect from the gears, but same direction-movement comes from the asymmetric "friction" effect, like in the meat-grinder. Whick needs a lot more lubricant I guess :) Nice work.
i have seen these gears exhibited many times over the years -- it's always fun to see them in action. so cool -- have you invented any of your own that you can show us?!
What's the ratio of the distance between adjacent gears for same direction vs. opposite direction? You said that the centers are further apart when they turn the same way; I'm curious how much further apart they are.
Your presentation at 2:57 doesn't portray the screw like effect acting on the body of the gears. The configuration at 0:51 is using a cork screw method of force acting on the next gear. Sliding down instead of pushing it around. The force is on the y axis not the x axis.
thats crazy !! you could make transmission for reverse gear with this by moving the axis closer ... or .. can you do do this while they spin ? humm cool stuff!
I'm thinking that a very powerful and compact supercharging system could be developed using this concept (providing that others, such as Whipple or the Frenchmen you mentioned,have not patented it already). You'd have to act quickly on it though before the internal combustion engine, which would seem to be its most obvious application, goes extinct.
I don't get it, on your drawings there is a rope, but not on model...as I thought that transfer power between gars...and rest is just optical illusion without any friction.
@OskarPuzzle Don't apologise, your English is fine. Anti clockwise makes perfect sense and is correct English. American English uses counter clockwise.
I kind of get it. Because they are cylindrical, you can put space between the ridges that act like teeth, and in that space you put more ridges that allow the gear to turn the other way. Am I right? By the way, how did you make the animation at the end?
You could make another type of gear cube that uses these gears. Each gear rotates either clockwise or anticlockwise, so that as you twist the puzzle the directions that the gears rotate changes, now THAT would be cool.
So the special gears aren't meshing so much as pushing each other into the right direction? That's really interesting...I wonder what practical purposes this could have beyond puzzles :)
So, practical application is no third gear is needed? Please someone explain where this would be useful? (not trying to be negative, its extremely interesting)
as many times i watch this and listen to you explain it, i just don't get it. i might just have to pick one up to understand it more. maybe along with the "knoted gears" as well
So, it's like a vertical worm gear that is overcome by a normal interlocking gear when closer? How does the vertical worm gear not take effect when the gears are closer together?
+OskarPuzzle 3D printing is a fine way for 'one-off' manufacturing. Big downside - Very slow and very expensive. For what you retail, should you not be looking into other ways to manufacture? Or is there a reason you stick with the slow and expensive way to produce these and other products? You can expand your market by making them much cheaper to buy.
Nope, just for fun. Each of the type of gear in the assembly ARE used, but in more robust form. I highly doubt anyone would use 2-teeth gears--they'd get worn out too quickly. Also, since the two outer gears still rotate in the same direction, it's not exactly useful. If you want to change the direction of the central gear, then there are easier, less complex, and more robust ways of doing it (like using a gearbox). But I have to admit that none are quite as mesmerizing as this.
I guess there is no practical application for those specific gears. Nevertheless, what matters is the principle. As a technician, I've seen thousands of different and rather exotic gear designs, each of them doing something no other gear shape could do. I suppose that they all started like interesting ideas, and then, over the years, they found their application in real life devices.
Perhaps the closest one is the twin scroll superchargers that you will find in some sports cars. But those have external gears that drive the mechanism to make it compress air.
There's a ton of friction when the gears are turning in the same direction.
+ThatSaneGuy you dont know how UFO's work yet do you ?
J-N-H-M, he can't know, since a UFO is an Unidentified Flying Object, and not necessarily an Alien spacecraft. It seems these days people use the term UFO when what they really mean is Alien spacecraft. Just because an object is unidentified to the observer does not mean it is extraterrestrial. It could simply be a man made craft that the observer is unaware of, like a secret spy plane, for instance.
I recently saw this type of gearing used in a kinetic sculpture made out of LEGO. The workaround for excessive friction in that environment is simply to use a bigger motor and change the batteries more often.
I suppose you could also use this sort of thing to mill grain into flour. In that kind of mill the goal is to slide two hard surfaces across each other.
oh wow... the rotation of these gears are so satisfying to watch
+Dan Motovlogs Imagine an entire wall of these
Indeed.
I was like... What the fuck?
and your hands go in between while you imagining
Dan Motovlogs has yea it is
is a bug, to report to the universe programer.
This brought a huge smile to my face. I 'always' knew this was possible but this is the first time I actually have seen the same gears do the impossible thing. Absolutely brilliant stuff.
are you a wizard?
+thanxx Thank you :-)
+OskarPuzzle It was a question, but thats alright.
He's not saying no, so I'll keep believing
I didn't get it almost at all until you showed that little animation.
That's when it all came full circle.
That's pretty cool.
My explaination is this:
This gears look more like screws.
And with special screws, you can do such stuff.
Thanks for sharing Oskar, it's really cool to see how well you know your craft.
the trick is that the gears are spirals, fairly steeply spiralled. when close together the drive between gears is perpendicular to the axis, as per traditional cogs, but when further apart the drive is parallel to the axis. the person who commented that they are like worm gears was actually not far wrong.
he shows the diagrams in 2 dimensions and its one gear spinning alone…watching the actual gears, it makes sense how this works. it's really cool. mind blowing actually, i always wondered how to get two gears to spin the same way.
Part of the explanation is missing. Two flat gears, rotating the same direction, do not interfere with each other, do not touch each other, and do not transmit power. But when the flat gear is formed into a helix, as shown here, the upward movement of one helix forces the upward movement of the neighboring helix, causing both gears to rotate in the same direction.
This video shows the "not interfering with each other" part, but neglects to mention the helix contact point part.
Thank you for taking the time to share this with us! fascinating!
Thank you, Mr Vandeventer. I think what made me better understand the way it works is your 2D scheme at 2:58. Nice
Thank you!
Yes, it will work also with five gears.
Great job, Oskar. I'd like to see more stuff like this in the future!
Another fantastically beautiful gear puzzle!
Thanks for the detailed explanation!
This is pretty cool.. as a lay person I have no idea what the bit about the "rope" means.. and I would love to understand why they can/are moving in the same direction..
My god, I'm a mechanical engineer and I'm having a seriously hard time wrapping my head around these! OskarPuzzle, you are amazing!
To me, it seems that the different-direction movement comes from a symmetrical "push" effect from the gears, but same direction-movement comes from the asymmetric "friction" effect, like in the meat-grinder. Whick needs a lot more lubricant I guess :) Nice work.
I love your videos so much, Oscar!
Thank you!
@djmiles099 This trick is for sale, see link with description.
In parallel mode, the helical gears are "squeezing" instead of pushing each other to rotate the same direction. :D
what type of 3d printer did you use?
Ps. I saw all your gearing work!!! you have a fan!
Good touch with the animation at the end!
i have seen these gears exhibited many times over the years -- it's always fun to see them in action.
so cool -- have you invented any of your own that you can show us?!
@BKbenFTW Perhaps this magic trick is the only practical application ...
looks kind of like the shafts for a constant flow air compressor.
Where is the connecting rope? I didn't see it when you took it apart. That was awesome.
What's the ratio of the distance between adjacent gears for same direction vs. opposite direction? You said that the centers are further apart when they turn the same way; I'm curious how much further apart they are.
That's like an engineering breakthrough. Awesome!
Your presentation at 2:57 doesn't portray the screw like effect acting on the body of the gears. The configuration at 0:51 is using a cork screw method of force acting on the next gear. Sliding down instead of pushing it around. The force is on the y axis not the x axis.
thats crazy !! you could make transmission for reverse gear with this by moving the axis closer ... or .. can you do do this while they spin ? humm cool stuff!
I'm thinking that a very powerful and compact supercharging system could be developed using this concept (providing that others, such as Whipple or the Frenchmen you mentioned,have not patented it already). You'd have to act quickly on it though before the internal combustion engine, which would seem to be its most obvious application, goes extinct.
I don't get it, on your drawings there is a rope, but not on model...as I thought that transfer power between gars...and rest is just optical illusion without any friction.
Since these gears turn the same direction, could the be used for transportation?
Yes, but simple rollers or a belt would be more effective.
Where would these even have a good application? I can see how much the contact area has been reduced to. Do you have actual figures?
I am impressed & I'm not easily impressed...
Great job her Oskar.
That is utterly fantastic. How do you even dream of these things, let alone make them???
Mindblown
@OskarPuzzle Don't apologise, your English is fine. Anti clockwise makes perfect sense and is correct English. American English uses counter clockwise.
Looks cool, but a bit too much friction, I guess!
are these the types of gears used in twin screw superchargers?
I kind of get it. Because they are cylindrical, you can put space between the ridges that act like teeth, and in that space you put more ridges that allow the gear to turn the other way. Am I right? By the way, how did you make the animation at the end?
I love your videos Oskar thank you for sharing!
I just can't get over how he says "Thank You For Watching."
Looks like twin scroll supercharger gears in the original orientation.
You could make another type of gear cube that uses these gears. Each gear rotates either clockwise or anticlockwise, so that as you twist the puzzle the directions that the gears rotate changes, now THAT would be cool.
The guy looks like he's being held hostage and forced to make these videos.
i think its because since the gear is a spiral when you flipped it upside down the spiral faces the other direction
You lost me, but I'm glad you understand it. Nice work.
Hi Oskar. I'm a little ignorant about these things. Can you tell me the advantage of this type of gear compared with the traditional design? Thank you
+Stockphile Philippines Higher amusement/amazement value.
Is there an stl of these gears that you know of, that I might print a set of my own? Thank you.
So it works like the bar that connects two wheels on a train?
So the special gears aren't meshing so much as pushing each other into the right direction? That's really interesting...I wonder what practical purposes this could have beyond puzzles :)
Wow, that took me a little bit to figure out, but now I get it.
i see you have a profile from minecraft
Is there some way to combine this with a disc stacking tower puzzle?
...or perhaps Connect-Four?
@BKbenFTW I think the practical application would be in manufacturing. You will only tool or order one type for your gear train.
WHAT YOU'RE SAYING IS ITS THREE CHIRKLES!!
Fascinating!!!! Marvelous!
So, practical application is no third gear is needed? Please someone explain where this would be useful? (not trying to be negative, its extremely interesting)
I'm a geared systems fan... and you blow my mind x.x ... 11 millons : 1 and now this....
You won a suscriber XDD
so can you buy two and put five in the base thing, will it still work this way?
A known application of this gear type is the Roots compressor: en.wikipedia.org/wiki/Roots-type_supercharger
+SmarterEveryDay when I saw this I thought of you man. Funny
I thought for a second I was not going to hear him say "Thank you for watching"
as many times i watch this and listen to you explain it, i just don't get it. i might just have to pick one up to understand it more. maybe along with the "knoted gears" as well
I heard they patched this glitch last week
Will it work with fusilli pasta? :-)
i thought that the slope of the gear was just pushing down on the other slope cauzing it to spin in the same direction.
Device for movement of a mini robot?
I completely understand how it works. Could I explain it in a way that would not be confusing? No. I wish I could.
So, it's like a vertical worm gear that is overcome by a normal interlocking gear when closer? How does the vertical worm gear not take effect when the gears are closer together?
Incredible stuff
Modern cameras have a cool feature called focus. Use it.
What happens when you move them slowly together?
+OskarPuzzle
3D printing is a fine way for 'one-off' manufacturing. Big downside - Very slow and very expensive. For what you retail, should you not be looking into other ways to manufacture? Or is there a reason you stick with the slow and expensive way to produce these and other products?
You can expand your market by making them much cheaper to buy.
+Derek Thomson Perhaps he prefers to be an inventor over being a capitalist.
+Heather Spoonheim
Shame, but that could be true.
Its just that most working people can't afford his toys.
+Heather Spoonheim
Wait a minute - Isn't he a capitalist already?
+Derek Thomson Just said 'prefers' one to the other - not is one and not the other.
+Heather Spoonheim I prefer being a captialist. I accept any reasonable license offer to get my designs into mass-production.
why are the other two poles there?
Very interesting. Thank you.
I love this ! absolutely fascinating :D
This is very neat :)
@cameron86482 "Anti-clockwise" is how they say "counter-clockwise" over the pond.
My brain just exploded.
Looks like a new mechanism for a new puzzle.
Nice focusing with the camera, i could really see the table.
@MrSpeedcubedude That is correct.
are there any practical applications for such gearing?
Nope, just for fun.
Each of the type of gear in the assembly ARE used, but in more robust form. I highly doubt anyone would use 2-teeth gears--they'd get worn out too quickly. Also, since the two outer gears still rotate in the same direction, it's not exactly useful. If you want to change the direction of the central gear, then there are easier, less complex, and more robust ways of doing it (like using a gearbox).
But I have to admit that none are quite as mesmerizing as this.
I guess there is no practical application for those specific gears. Nevertheless, what matters is the principle. As a technician, I've seen thousands of different and rather exotic gear designs, each of them doing something no other gear shape could do. I suppose that they all started like interesting ideas, and then, over the years, they found their application in real life devices.
I love them, I was just wondering about applications....
Perhaps the closest one is the twin scroll superchargers that you will find in some sports cars. But those have external gears that drive the mechanism to make it compress air.
Witchcraft is what that is...
What are they used for?
1:15 I already got how it works, amazing.
Would you like a smoke and a pancake? Flapjack and cigarette?
Cigar and a waffle?
@ACCUBERsam Correct.
Do you 3D print these yourself?
iMaterialise and Shapeways, see also oskarvandeventer.nl/FAQ.html
Is this your 'work' Mister van Deventer, or is it your hobby?
They also look as if that make a full rotation in less time then spur gears.very much like worm gears
Why three gears but five pins?
Looks awesome! =)
Camera is too blurry. :(
Nifty! that's fantastic!
+Justin F Thank you!
Is the rope contained in the bottom?
There is no rope?
OskarPuzzle he meant at 1:16 , you mentioned a rope
Jim Bob the rope is only to show how the shape of the gears are formed. The gears are 4 copies of a piece o the involute of a circle.
WHAT ROPE?