Clever idea! I will definitely consider using this when I get around to doing my project car. Will definitely be more useful for remote control than a manual transmission.
@knightrider1545 Ok, well the basic principle is that a small wheel driving a big wheel makes the big wheel turn slower, and a big wheel will turn a small wheel faster. Now, imagine that instead of having a bunch of different gears, you have two cones parallel to, but facing the opposite direction to each other - ie. an infinite number of drive ratios. Connect this with a strap or some sort of idler gear, and you have a CVT.
@DavidPartay But I gotta ask why doesn't in the moc, the thing speed off like crazy since it could make a any ratio including 5:1 or why not 99:1 ratio?
@knightrider1545 It's still limited by the size of the gears used for both the low and high speeds and the amount of power lost through the moving parts and transmission :)
@knightrider1545 I thought so too at first, but as I thought about it more I realized that the two speeds are combined at the final diff to produce a variable speed.
Looks like your cvt works like a traditional automatic transmission, with the only difference that automatic uses belt brakes where you use a friction gear.
The Decimator is quite simple, it uses two of these to control each tread. Two XL motors power a transmission with a differential. As for the rest, it's up to you.
I want to try this out. I'm curious to find out how scalable it is. Assuming you could add more differentials for higher gear ratios.
EyeOnTheTV 1 month ago
Great video. You have swapped input and output at 0:50. That is presuming that input is where the engine should be.
cablecatdk 3 months ago
Comment removed
EyeOnTheTV 1 month ago
@cablecatdk Taking a closer look, his model at 0:50 is flipped upside down compared to the animation.
EyeOnTheTV 1 month ago
i dont get the point, that's useless
sienidino 3 months ago
@sienidino For you it probably is.
JohannWeich 2 months ago in playlist Favorite videos
Bravo!
HermanniSan 3 months ago
Wow! Great realisation!
TheJohnSRT 3 months ago
Clever idea! I will definitely consider using this when I get around to doing my project car. Will definitely be more useful for remote control than a manual transmission.
DavidPartay 4 months ago
Wow, very Nice! I will use it in my actuell project, thanks :)
Golfi1812 5 months ago
i just dont get cvt's.....their extremely confusing
knightrider1545 6 months ago
The concept, or how to make one work with lego?
DavidPartay 4 months ago
@DavidPartay the concept with out gears
knightrider1545 4 months ago
@knightrider1545 Ok, well the basic principle is that a small wheel driving a big wheel makes the big wheel turn slower, and a big wheel will turn a small wheel faster. Now, imagine that instead of having a bunch of different gears, you have two cones parallel to, but facing the opposite direction to each other - ie. an infinite number of drive ratios. Connect this with a strap or some sort of idler gear, and you have a CVT.
DavidPartay 4 months ago
@DavidPartay Ok then, Is right that a CVT can make infinite ratios instead a set of ratios?
knightrider1545 3 months ago
@knightrider1545 Pretty much, obviously it will be limited by the minimum and maximum sizes of each end of the cones though!
DavidPartay 3 months ago
@DavidPartay But I gotta ask why doesn't in the moc, the thing speed off like crazy since it could make a any ratio including 5:1 or why not 99:1 ratio?
knightrider1545 3 months ago
@knightrider1545 It's still limited by the size of the gears used for both the low and high speeds and the amount of power lost through the moving parts and transmission :)
DavidPartay 3 months ago
@knightrider1545 I thought so too at first, but as I thought about it more I realized that the two speeds are combined at the final diff to produce a variable speed.
JohannWeich 2 months ago in playlist Favorite videos
very confusing
knightrider1545 4 months ago
Looks like your cvt works like a traditional automatic transmission, with the only difference that automatic uses belt brakes where you use a friction gear.
xelectriquex 9 months ago
@spasdiTV
The Decimator is quite simple, it uses two of these to control each tread. Two XL motors power a transmission with a differential. As for the rest, it's up to you.
Legonut135 1 year ago