For those saying +40 degrees is impossible

[Samlambert]

Q1.
What would you say are the main contributing factors to not popping?
Obviously not including tightening the screws.
My type A edges cores measure 3.5mm from the side of the edge-cubie, it pops.
My type F edges core measures 4.0mm from the side of the edge-cubie, they don't pop.

When swapping all edges in both cubes it makes the new type f pop and the type A not pop.

Q2.
OMG this is difficult to accurately describe... I can see that the four gaps around center.
You said that you sanded the 'center cubie edge' as well as the 'edge and corner core', did you also sand the edge and corner cubies ?

Thanks

A1
It's because type D springs/centers/screws have a "limit" that they can be like pulled up, and this limit is just low enough so the cube rarely pop. On an Old type A this limit is very high, and if you force it, pops are really easy. I think it's the main reason. (Dont know if you really understand but I could post you some screenshots if you want)

A2
I sanded the "corners" of the centers, and everything that looked sharp for the edges and corners. That would be another way to describe it

 

[xchiltonx]

1.
Cool thanks. I think that sanding really helps for cutting corners, but I'm always afraid of it possibly contributing to the popping :/
2.
Maybe a screen shot might help because I'm having difficulties getting the picture, I mean I'm sort of confusing it with you cutting the centers so that the free spin.

 

[Micael]

After recalculating like 4 times, I'm pretty sure it's approximately 42.94 degrees, not approximately 45 degrees (what you first said in the video).

"approximately 42.94 degrees" 4 significant digits in that affirmation don't make sense to me. As you based your calculation on a video, 2 significant digits look more fair here. So you calculated it as approximately 43 degrees. You sould agree for at least a 1 degree uncertainty, so 43 degrees and 45 degrees are approximately the same thing.

 

[amostay2004]

Why are u all freaking arguing on some stupid degree calculations? Yes he said that his cube could cut more than 40 degrees but it's just to show that it's good at cutting corners..

and indeed his cube is good at cutting corners from the video...screw the degrees

 

[vloc15]

this cube is good..i might give it a try..i have a white type D..do you think a black type A and D cube might still feel the same? or does the white plastic really matter?

 

[xchiltonx]

1.
Cool thanks. I think that sanding really helps for cutting corners, but I'm always afraid of it possibly contributing to the popping :/
2.
Maybe a screen shot might help because I'm having difficulties getting the picture, I mean I'm sort of confusing it with you cutting the centers so that the free spin.

sorry 1 and 2 are inverted there. Anyway for the limit of the centers, would putting washers on the screws fix the limit?

 

[Samlambert]

sorry 1 and 2 are inverted there. Anyway for the limit of the centers, would putting washers on the screws fix the limit?

My guess is that it would help, but not completly fix it.

 

[PCwizCube]

Approximately 45 degrees? I think not. I paused the video, aligned my cube so it was exactly like yours, and was arctan 13.9/16.6 = 39.9 degrees. So... um this is kind of funny. "For those saying +40 degrees is impossible" Well guess what? You didn't do +40 degrees! OWNED LOL (And yes, 0.1 degrees matters )

that is the worst come back i have ever heard:
1) your cube and his are not the exact same
2) your measurements are not perfect
3) rounding of the measurments make the final answer imperfect
4) the measurements from the screen onto your cube are inaccurate

the only way to test this hypothesis is to get his cube and measure exactly the lengths and then work it out

Thanks a lot. That makes me feel so much better

3) It was better than Samlambert's "approximation." He was using whole numbers so what's wrong with me getting more into detail?

And I and Samlambert himself proved that in the video, the cube did not cut corners approximately 45 degrees. (I wouldn't say ~42.94 degrees is approximate, and Samlambert himself said he measured and got 41-42 degrees)

And don't make such a big deal about it. I was just making a little joke that I knew would probably be bad. If you would like to say somethings about measuring at least say it in a nice tone. "that is the worst come back i have ever heard:" is pretty harsh (in my standards)

And let it be known that I make REALLY REALLY REALLY REALLY bad comebacks at school. It's so embarrassing... I don't want to talk about it

After recalculating like 4 times, I'm pretty sure it's approximately 42.94 degrees, not approximately 45 degrees (what you first said in the video).

"approximately 42.94 degrees" 4 significant digits in that affirmation don't make sense to me. As you based your calculation on a video, 2 significant digits look more fair here. So you calculated it as approximately 43 degrees. You sould agree for at least a 1 degree uncertainty, so 43 degrees and 45 degrees are approximately the same thing.

Okay sorry for being stupid? Thanks for mention that

 

[Samlambert]

Yeah, I think it was kinda rude and you don't deserve it. Anyway, we came to the conclusion that in the video it was about 43 degrees. The whole point of the thread was just to prove that it's possible to have a cube that cut corners over 40 degrees.

 

[PCwizCube]

Yeah, I think it was kinda rude and you don't deserve it. Anyway, we came to a conclusion that in the video it was about 43 degrees. The whole point of the thread was just to prove that it's possible to have a cube that cut corners over 40 degrees.

Yeah, thanks Samlambert. I greatly appreciated it.

Yes, the whole point of this thread was to prove that a 3x3 can cut corners over 40 degrees. (And after all, that's what the thread title says) And Samlambert proved it.

 

[JohnnyA]

I have a type (a) from 9spuzzles (this one http://www.9spuzzles.com/index.php?gOo=goods_details.dwt&goodsid=157&productname= ). Is this an old type a or a new type a? If it is new, where can I get an old type a from to get the core and cubies?

 

[BigSams]

it says "the video has been removed by the user".. so why did you remove it?!! and i was so looking forward to seeing what everyone else was exclaiming about. geeeez

 

[12etsam]

.....

 

[Samlambert]

just get an white edison cube, lube it with jig a loo, tighten all the springs to the max(careful to not strip the core), and it will cut exactly 45 degrees every single time on any layer

I doubt it, do you even know what is exactly 45 degrees or you are just "thinking"?

Unknown.Soul (below): Hehehe

 

[Unknown.soul]

it will cut exactly 45 degrees every single time on any layer

Even M, E, S?
:rolleyes:

 

[4Chan]

just get an white edison cube, lube it with jig a loo, tighten all the springs to the max(careful to not strip the core), and it will cut exactly 45 degrees every single time on any layer

Uhmmm, i have a white edison!
And its lubed with jigaloo.

Mines is loosened quite a bit, and i cut off parts of the centre caps so that it could be even looser.
(edisons have these weird tabs.)

EDIT: not really 45, more like, 35 or 40.
It locks up at 45.

 

[PCwizCube]

just get an white edison cube, lube it with jig a loo, tighten all the springs to the max(careful to not strip the core), and it will cut exactly 45 degrees every single time on any layer

I doubt it, do you even know what is exactly 45 degrees or you are just "thinking"?

Unknown.Soul (below): Hehehe

I agree, would you care to provide proof of your measurements? If you're guessing, you may think that it's 45. But I can tell you, I've tried it and 45 and 40 degrees (even less than 40 degrees too) look pretty similar.

Approximately 39.9 Degrees

Approximately 42.94 Degrees

P.S. Awww, Samlambert, why did you remove that video? I thought it was not useless, because you had some pretty good information on how you sanded things and such. Would you mind re-uploading it, even as a private video? Or upload to a site where I could download the video? Thanks

 

[Zarxrax]

I just got a plain type C cube from cube4you, and this thing is cutting 45 degree corners easily, every time. Though I tried just over 45 degrees and all of the pieces exploded out.

 

[rahulkadukar]

The video seems to have been removed

 

[GermanCube]

Though I tried just over 45 degrees and all of the pieces exploded out.

You tried to cut corners @ +45° ??? How did you do this??
(More than 45° isn't possible!)


Alex