Random Cubing Discussion

[Eleredo]

Just did a 8x8x8 solve.

 

[Jaycee]

http://www.speedsolving.com/forum/s...avorites-icon.&p=269101&viewfull=1#post269101



I dunno why people said things like "Nice one" and "Fantastic idea" to 3x3 OBLBL...

I had a feeling it wasn't new!

I just think it was cool to see, I don't really think it's a viable way of speedsolving on 3x3. I just love the method so much on 4x4 that I love to see it anywhere

 

[Kirjava]

Oh my gawwwwd

 

[DavidWoner]

OBLBL On 3x3.

Scramble: U2 B2 D2 R2 D' L2 R2 F2 U2 F2 R' B2 F L F2 L2 R2 U' L2 B2

z' x' F U L2 M' U' M2 U2 B2 U F2 B' //Make Roux block
M' U' M' U M //Red Green Edge
U M U2 M' //Orange Green Edge, Petrus block done

This is just using 20(!) moves to make a 2x2x3 with unnecessary restrictions then doing plain old petrus. I give it 2/10.

 

[Kirjava]

bleh

 

[oll+phase+sync]

This is just using 20(!) moves to make a 2x2x3 with unnecessary restrictions then doing plain old petrus. I give it 2/10.

M' U' M' U M //Red Green Edge
U M U2 M' //Orange Green Edge, Petrus block done

this could be just r2 U M' U' r2 and there are cubers who speed build the Roux-block in 8/9 moves - so move count is not that bad. (I still use the option to place just one M-Edge and finish with: COLL + Last-Five-Edges or CLL + 2-Edges(last F2L-edge and one in U) + 3-Edges-ELL if I don't orient edges )

 

[qqwref]

I have actually spoken to Calvin of HKnow about the plastic situation [...] and what I found out [...] was that the white and colored plastics are softer due to being strictly ABS, while the black plastic is ABS + PVC, which is harder

ah HA! I've thought white cubes tended to be better for quite a while (years?) but was never really sure of a reason. I think this pretty much counts as proof.

 

[Lucas Garron]

I have actually spoken to Calvin of HKnow about the plastic situation [...] and what I found out [...] was that the white and colored plastics are softer due to being strictly ABS, while the black plastic is ABS + PVC, which is harder

ah HA! I've thought white cubes tended to be better for quite a while (years?) but was never really sure of a reason. I think this pretty much counts as proof.

Ooh, indeed, this sounds pretty reasonable. I've always been convinced that white cubes generally have a "smoother" feel.

 

[Cubenovice]

ABS-PC not PVC...
See Stefan's post with Calkvin's feedback in the plastic / Force cube thread.

PC and PVC are very different materials.

Anyway; as per Stefan's post nowadays ALL dayan cubes / colors are made in pure ABS.

From there it is as I have always said: pigment types and levels, raw material differences and processing conditions.
That alone is enough to give different "properties". Question is just if you will acually feel it in a cube

White requires much more pigments than black which actuallys mean that white cubes are harder than black cubes LOL

 

[Rpotts]

10.54 L F' R F L' B' L' F' D' B U R2 U2 F2 U R2 B2 D' R2 L2

z2 y' F' R' F' D' R2 // XCross - 1 cross edge (5)
U y U R U R' // Second pair (6, 11)
y2 U L' U L U R U R' // Third pair (9, 20)
U L' U' L U' L' U L // Fourth pair (8, 28)
y U' M' U' M U' M' U' M U2' M' U2' M // Finish F2L + EO (15, 43)
R U' L' U R' U' L U // Niklas LL (8, 51)

51 moves ETM / 10.54 ≈ 4.84 ETPS

Wish I insta-recognized the Niklas and sub10'd.

:C

 

[Cubenovice]

So since Dayan now makes all their cubes with the same plastic, the force cube and white versus black cubes issue can now be dismissed as false? As in, there is no difference between white and black, and there is no difference between a force cube and a regular stickered cube in terms of plastic content? I hope that made sense.

Unfortunately the answer to "force cube and white versus black cubes issue " is no...
Dayan now produces everything in pure ABS but older versions are still out there (at cubers and possibly at retailers and stores) so there will be material differences between cubes.

I know from personal experience in testing ABS-PC blends with various colors / pigment loadings that there can be significant differences in properties just based on the type/loading of pigments. As mentioned before: question remains if these differences (at pigment levels used by Dayan) actually make a difference in "feel" of a cube.

The "difference between colors" discussion is a never ending one.

Unless...
Dayan or another manufacturer would do an extensive test run; preparing cubes in different colors from the exact same batch of ABS, assemble them exactly the same (using cubies from exactly the same mold-cavities in the exact same location in the cube, all with identical finishing of parting lines and injection points) and have them tested blindfolded by some highly experienced cubers.
Yes, blindfolded: you don't want people to be influenced by what they see.

 

[Brest]

Here is an average of 5 to try. Scramble as shown, solve however you like. Gogogogo!

1st y x' (orange U / white F)
B D2 R2 F2 D2 F' L2 F' L2 D2 R' B2 L2 F U L' B U' F2
2nd x2 (yellow U / Blue F)
F2 U' F2 D' U2 B2 U R' D' B' F' R' F L2 U' L2 R2 D U'
3rd y x2 (yellow U / orange F)
B F L2 R2 U2 F' L' B2 U2 F' U' B U' L2 R' D2 U R2 B'
4th x y2 (green U / white F)
F2 U2 L B2 D2 L2 F' R2 U L' F' R B' L D2 L' U F' L2
5th x y (green U / red F)
D2 B2 R2 D2 F' R2 D2 L B U B2 R2 B2 R2 D U2 R B' F2

 

[ben1996123]

 

[ottozing]

Here is an average of 5 to try. Scramble as shown, solve however you like. Gogogogo!

1st y x' (orange U / white F)
B D2 R2 F2 D2 F' L2 F' L2 D2 R' B2 L2 F U L' B U' F2
2nd x2 (yellow U / Blue F)
F2 U' F2 D' U2 B2 U R' D' B' F' R' F L2 U' L2 R2 D U'
3rd y x2 (yellow U / orange F)
B F L2 R2 U2 F' L' B2 U2 F' U' B U' L2 R' D2 U R2 B'
4th x y2 (green U / white F)
F2 U2 L B2 D2 L2 F' R2 U L' F' R B' L D2 L' U F' L2
5th x y (green U / red F)
D2 B2 R2 D2 F' R2 D2 L B U B2 R2 B2 R2 D U2 R B' F2

1st solve-16.71 (worst)
2nd solve-16.58
3rd solve-14.95
4th solve-13.31 (best)
5th solve-14.90

average-15.48
method-CN CFOP

 

[Kirjava]

02:55:27 <+Brest> R2 U2 R2 U' F2 D2 R2 U' R2 F2 U F' U2 L' U' L D' L2 U2 F R

03:08:09 <+Kirjava> L' B2 y2 R2 U' R U M U' x U2 R U' R' U2 R2 x' M U' M2 U M U' M' U M

23 STM / 29 HTM

 

[JianhanC]

There was a Megaminx solve I did a while back. I swear I started the timer like normal, and then proceeded with the solve. It felt slow and sloppy, and yet when I stopped the timer, it said 57.xx. I knew it wasn't fast during the solve, but it was sub-1 according to the timer. So I thought that the timer lagged and didn't count the solve as a PB. Does qqtimer have problems like these or does felt-slow-but was-actually-not solves a lot more common? whauk had a sub-10 solve recently but he claimed that it felt super slow.

 

[aronpm]

There was a Megaminx solve I did a while back. I swear I started the timer like normal, and then proceeded with the solve. It felt slow and sloppy, and yet when I stopped the timer, it said 57.xx. I knew it wasn't fast during the solve, but it was sub-1 according to the timer. So I thought that the timer lagged and didn't count the solve as a PB. Does qqtimer have problems like these or does felt-slow-but was-actually-not solves a lot more common? whauk had a sub-10 solve recently but he claimed that it felt super slow.

If qqtimer does that, it's not because of qqtimer, it's because of the computer's system clock (or your browser running the javascript extremely slow). qqtimer gets the time (in milliseconds) from the system clock. (Some) Stackmats do have problems with this though :\

 

[Kirjava]

Hackmat :3

 

[emolover]

Does it do what I think it does? Or is it just a clever bomb?

Tell us how you did this please.

 

[Owen]

Does anyone know God's number for the x-cross? How could this be calculated?