8*8*8 Mod by 7*7*7

r_517

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8*8*8 Mod by 7*7*7 (VIDEO ADDED)

The original post is here, by 大烟头(ID on mf8: Da Yan Tou, real name: Bao Daqing) (A very famous DIYer in China, also the patent holder of Crazy 4*4*4 Cube and DAYAN DIY)

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VIDEO HERE: http://v.youku.com/v_show/id_XMTM2NzU1MTk2.html

When V-cube 7 was manufactured, I was always considering how to DIY it to 8*8*8. I once DIY a 6*6*6 using a 4*4*4 cube and that took me 3 months.
The theory is very simple -- The inner structure was a Rubik's 4*4*4 structure, add one layer into it and fix the orbit of the inner ball structure. However, it's REALLY hard to make it because every part was needed to be modified and the size had to be calculated very accurately. I failed at the first two times.

The first time is just an attempt, so I didn't took photos.
The second time: The inner orbit is not very round-sized. You can see as following:
34opw11.jpg

10p1u37.jpg

21c5sll.jpg

2j68d9t.jpg


This was the third attempt. I was satisfied of them.
I could not help trying them when only half of it was completed. I felt it was pretty good under the calculation by hand. So this struture should be OK if it was manufatured like this.
59wpog.jpg

35mk64l.jpg

359xy8g.jpg

f1070g.jpg

2evx2jn.jpg

keu1yh.jpg

zxl7p4.jpg


Generally speaking it was done, and will not easily get POP. But I'm stilling working it to make it more fluent.
2hojvkl.jpg

1j2dt3.jpg


The most difficult part is the fourth and fifth layer of the cube. The orbit has to be VERY round-sized. I fixed the orbit for 3 times. You can see as below, it was a bit different from the first picture on the top.
rvklfo.jpg

2hdyum8.jpg

102o9cz.jpg

29p93xy.jpg

34yep3t.jpg

2jeojtt.jpg

x26o2q.jpg

eq2dxh.jpg

9gh4l5.jpg

1me6t.jpg

96ask3.jpg



EDIT: The last two layers:
122nogp.jpg

2ebhbg8.jpg

mn27i0.jpg

incxn9.jpg


qppgk6.jpg

289dlp2.jpg

2ivnrqs.jpg

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Comments are welcome.

There are still 2 layers not finished. (It is finished, but he's improving it.) You can go to the original post if you want to see the process.
 
Comments are welcome.

There are still 2 layers not finished. (It is finished, but he's improving it.) You can go to the original post if you want to see the process.

you'll be waiting a lot for them...there are no words for the awesomeness of this mech :eek:
seriously. I laughed for like 5 mins after I've seen these pictures. this guy's a genius.
 
Wow, nice job. I really like the idea of building even V-cubes off of the Rubik mech 4x4 - it is really the best mechanism for dealing with the middle layers of bigcubes, as it never gets core misalignments or weird middle-layer lockups and does not require large numbers of hidden internal pieces. It would be very cool to play with 8x8 (and 6x6 as well!) produced by this method. I wonder if there is any way to modify 5x5 into 6x6 like this.

Who could have guessed that the worst puzzle ever (rubik's 4x4)

Are you joking? Rubik 4x4s are amazing when properly broken in, and it is the same mechanism used in the Mefferts (and clones) cubes that so many of the top cubers use.
 
Who could have guessed that the worst puzzle ever (rubik's 4x4)

Are you joking? Rubik 4x4s are amazing when properly broken in, and it is the same mechanism used in the Mefferts (and clones) cubes that so many of the top cubers use.

But meffert's 4x4s are not exactly the same as rubik's ones. I like to think of Meffert's 4x4s as improved rubik's 4x4s. Let me re phrase it: Rubik's 4x4s are the worst puzzle ever when new.
 
i think the core he used is miniQJs, which rocks.

If this is true then I withdraw my previous two posts.

Who could have guessed that the worst puzzle ever (rubik's 4x4) could make one of the best puzzles ever! Great job improvising a mech!
WRONG! Worst puzzle ever is the rubik's 5x5
My Rubik's 5x5 is amazing. I broke it in then modded it a little so it's not as loose.

the third one is mini qj, and the second one is large QJ
 
i love you man!

i cant wait to see the finished product!
im bored of 7x7, me wants bigger!!

i really enjoy looking for pieces, remembering locations of pieces and building the first 8 edges is my favorite!! heh, its probably why i love big cubes so much :)
 
Who could have guessed that the worst puzzle ever (rubik's 4x4)

Are you joking? Rubik 4x4s are amazing when properly broken in, and it is the same mechanism used in the Mefferts (and clones) cubes that so many of the top cubers use.

But meffert's 4x4s are not exactly the same as rubik's ones. I like to think of Meffert's 4x4s as improved rubik's 4x4s. Let me re phrase it: Rubik's 4x4s are the worst puzzle ever when new.

...
meffert's 4x4=old rubik's
old rubik's pwn, new rubik's sux
enuff said

on topic: simply amazing! there are many chinese out there who are puzzle building geniuses....look at the 12x12x12! and now this!
 
Who could have guessed that the worst puzzle ever (rubik's 4x4)

Are you joking? Rubik 4x4s are amazing when properly broken in, and it is the same mechanism used in the Mefferts (and clones) cubes that so many of the top cubers use.

But meffert's 4x4s are not exactly the same as rubik's ones. I like to think of Meffert's 4x4s as improved rubik's 4x4s. Let me re phrase it: Rubik's 4x4s are the worst puzzle ever when new.

...
meffert's 4x4=old rubik's
old rubik's pwn, new rubik's sux
enuff said

on topic: simply amazing! there are many chinese out there who are puzzle building geniuses....look at the 12x12x12! and now this!

don't forget the 17x17!
 
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