I Made a Fully Functional LEGO RUBIK'S CUBE!! (3x3x3)

about a year ago i made a lego rubik's cube and you guys really liked it another youtuber called z3 also made it and it worked kind of um yeah and so i made a comment on that video promising that i would make the mechanism better and so today we're going to do just that we're going to redesign all the pieces and come up with a cube and then put it to the ultimate test by saying if i can solve it from a scramble so if you enjoyed leave a like and subscribe the core in the old cube worked but had such a flimsy design because these pieces could move back and forth making the cube loose or tight but i needed to make sure this new design had the center pieces perfectly positioned away from the center and with my first design i realized there was going to be a problem because even though it looks like it fits this tiny gap makes it too tight so finding the right design might take a while [Music] at this point i was already about to give up until i'd finally come up with a good design for the core and so now it was time to move on to the the old edge pieces were probably the worst design so i was glad to get rid of them boom and perfect okay so i created a simple interlocking mechanism so now i can't pull it out making sure that other pieces don't fall out when you turn it so i'm going to try putting on this corner piece and see what happens wait that's actually perfect you need to pretty much make something close enough to a circle so that the interlocking mechanism stays interlocking the whole way around the corner pieces are wedged into three edge pieces and also travel around the circle that the edge pieces make [Music] it's a little bit loose let's try changing these circles to squares that's much better if you look a bit closer you can see how the corner pieces are wedged between three edge pieces and it can also hold itself up so far so now that we've made all the pieces are we done there were still two pretty big issues with the cube one was that edge pieces could get stuck when you were turning and the others were that corners were still too loose and these were both caused by this tiny quarter stud gap so let's fix that [Music] okay so i found a way to get these triangle tiles to be the right distance apart and now all i need to do is attach the two cube faces onto this somehow [Music] okay okay that's one cube face done now i need to find a way to attach another cute face [Music] okay so i found a piece that looks promising all i need to do now is figure out a way to reverse the stud so this can attach to this [Music] if i put this here attach this to here can i put this in does this count as an illegal technique [Music] and now i've got two studs i can work with perfect [Music] this can go here and this can go here i think that's it perfect look at that now let's test the corner pieces [Music] it's not even close to coming out perfect the last thing i quickly did was reinforce the corner pieces because they were just too flimsy and after about four hours of work i think we're finally done so these are all the pieces you're gonna need and you're also gonna need nine two by two plates in each color of the cube so we're gonna start with this technique hub and three l bar then we're gonna attach six of these i'm gonna attach a three quarter pin and a half pin and then a two by two plate and we're gonna make sure this little slot lines up with the ridge in the technic piece you're gonna put one of the cube colors on and we're going to put the other five on make sure to line up the slots with the ridges [Music] now we're going to make the 12 edge pieces we're going to start by putting two 1 by 1 round plates on either side of this piece and then put a 1 by 1 round plate with a hole in it get your two 2 by 2 colored tiles of choice and attach them to two 1x2 plates you can attach your first face onto the one by one round tile and then attach these two triangle tiles onto each side [Music] then you're gonna put this one by one bracket here a one by one brick with a side stud [Music] and then attach a half pin here make sure to line it up like i do [Music] then insert it into the one by one brick until you hear a clicking noise now you can attach your two one by two tiles and we're done our edge pieces make sure you make 12 of them now we're going to make the eight corner pieces attach three black 2x2 plates [Music] a one by two plate this piece again put this one by one brick in here another one by one brick and a one by one plate put your one by two tile here and slide it across a little bit and then put your one by one brick with studs and adjacent sides and put the three one by one tiles on and then i almost forgot to mention make sure you put your three colors of choice on here [Music] now we can start putting the cubes into the bigger cube start by attaching the four edge pieces on the bottom [Music] and then the four corner pieces on the bottom then the four edge pieces in the middle now take the top plate off and start putting in the top cubes [Music] and after that put it back on and we should be done [Music] now for the moment of truth it's time to test this cube still looks identical to an actual rubik's cube and it feels pretty stable in my hand so far [Music] let's make sure none of the pieces fall out so if you hold it by the corners nothing edges nothing so i think it's all good to start trying to turn it [Applause] and even with my first turn i was shocked by how smooth it is compared to last time it actually works this time when you turn it none of the pieces fall out so you don't have to hold anything in and also while turning none of the pieces pop out as well so i did a few test turns to see how good this cube actually was and turning on its side was better for reasons i'll explain in a little bit [Music] so before i try and solve it i want to show you how it works in a little bit more detail so you can see the circular shape of the cube and the interlocking mechanisms from both the edge pieces and the corner pieces stop them from coming out at all times during the rotation let us mix up the cube and see if we can solve it [Music] now came the moment of truth could i solve this rubik's cube from a scrambled position okay now that we have our scrambled cube it's time to solve it most of the turns were pretty good as you can see here but there was one problem that just kept coming up in the cube and it made it quite hard to turn at times and took a while eventually i solved the white cross on the top and then it was time to do the white corners [Music] so as you can see here sometimes the pieces will get stuck on each other and this was because the rotation wasn't precise enough and the corners of the smaller cube faces were way too sharp there are two ways i can think of fixing this problem which are magnets and making the cube corners less sharp so i kept trying to get the corners to the top and eventually i only had a couple corners left to do [Music] now there's only one corner left and at this point it had already taken me about 20 minutes just to get here so i decided just to solve the white face but if you want to try and see me solve the whole cube then i'm planning on making a part 3 if i can improve the cube good enough with magnets or smoother edges so subscribe for that [Music] you

Channel: PuzzLEGO

Views: 11,321,560

Keywords: puzzlego, lego

Id: tolQCt76LBk

Length: 10min 52sec (652 seconds)

Published: Sun Oct 03 2021