aczkasow Posted March 3, 2013 Posted March 3, 2013 (edited) I have just made a Limited Slip Differential. I was inspired by Legonut135 CVT, and my LSD is based on his transmission principle with adding extra differential. Without drive differential Installing the drive differential Here's a Youtube link Edited March 3, 2013 by aczkasow Quote
Saberwing40k Posted March 3, 2013 Posted March 3, 2013 This is cool, but as anything more than a demonstrator, it's worthless. It's so big, and differentials are so fragile, that any application that would benefit from this would destroy it. It's still cool, though. Quote
aczkasow Posted March 3, 2013 Author Posted March 3, 2013 (edited) Saberwing40k, you are correct, sir; this is just a proof of concept. I don't think that wheel blocking is a big problem for lego. Edited March 3, 2013 by aczkasow Quote
Saberwing40k Posted March 3, 2013 Posted March 3, 2013 I really must resist the urge to make an "In Soviet Russia, Lego builds you." joke, but I apparently could not. Ah well, and you are right. Most trial trucks I've seen either have remotely locked differentials, or none at all. Still, this might be good for something, not sure what. Quote
Bzroom Posted March 3, 2013 Posted March 3, 2013 I'm still a little confused how this works. But your demonstration did seem to work. Is there some specific amount of limited slip? For example, it wont slip more than 1:3 or 3:1 ? This is quite the pile of gears. Good job! Quote
aczkasow Posted March 4, 2013 Author Posted March 4, 2013 Still, this might be good for something, not sure what. A feature car maybe? Is there some specific amount of limited slip? For example, it wont slip more than 1:3 or 3:1 ? Yes, it is about 1:3 Quote
Bzroom Posted March 5, 2013 Posted March 5, 2013 very amazing mechanism, it would be awesome if you could simplify this so it's smaller and more usable. This seems like a much better solution than friction. However all these small gears are definitely weak and likely to fail. :( I would still love to see a more physical explanation of the different modes this thing operates in. To me it seems like it is adjusting the ratio of rotation between 1:3 and 3:1 between the two sides, like the continuously variable transmission implies. I'm trying to come up with a very small/simple mechanism that will let me continuously transition from 1:1 and 1:-1, this seems like a very usable technique. I suppose my first moment of unclarity is how one adjusts the ratio of the CVT. There were two disconnected shafts and i suppose friction or power in either of those adjusts the ratio? Quote
aczkasow Posted March 5, 2013 Author Posted March 5, 2013 You should really check this CVT out http://www.youtube.com/watch?v=54biG55um5o The issue with this cvt is impossibility to control the ratio manually :) Quote
dvsntt Posted March 5, 2013 Posted March 5, 2013 Please excuse my novice ability and understanding, but I don't see the advantage to this desgin over the differantial deisgned by LEGO (you use three of them in your deisgn). Is it more torque from gear ratios? Quote
Someonenamedjon Posted March 5, 2013 Posted March 5, 2013 (edited) Please excuse my novice ability and understanding, but I don't see the advantage to this desgin over the differantial deisgned by LEGO (you use three of them in your deisgn). Is it more torque from gear ratios? A limited slip diff does not let just one side get the power, like solid gearing, but it also functions as a diff. You should check this out. http://m.youtube.com/#/watch?v=JX5YgNankww&desktop_uri=%2Fwatch%3Fv%3DJX5YgNankww Edited March 5, 2013 by Someonenamedjon Quote
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