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 Post subject: E-Cube Type 0 3x3x3
PostPosted: Mon Dec 16, 2013 6:41 pm 
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This is my best, and possibly weirdest looking 3x3x3 design, type 0.
Attachment:
File comment: assembled
zzzzzzzz E 01.png
zzzzzzzz E 01.png [ 188.01 KiB | Viewed 1654 times ]

assembled
Attachment:
File comment: mechanism
zzzzzzzz E 02.png
zzzzzzzz E 02.png [ 348.87 KiB | Viewed 1654 times ]

Attachment:
File comment: more mechanism
zzzzzzzz E 03.png
zzzzzzzz E 03.png [ 248.84 KiB | Viewed 1654 times ]

I designed this mechanism after deciding that modifying my previous designs would block out new ideas. This cube has 2 springs per side, and it is not proportional.
Even I think this looks quite strange with the holes added to remove material. :shock:
I really can't wait to print this puzzle :mrgreen:


Attachments:
File comment: cross-section
zzzzzzzz E 04.png
zzzzzzzz E 04.png [ 111.13 KiB | Viewed 1654 times ]

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 Post subject: Re: E-Cube Type 0 3x3x3
PostPosted: Mon Dec 16, 2013 8:52 pm 
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I would love to try out some of your puzzle designs. They are different from all the puzzles that I have and I would love to test one someday.


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 Post subject: Re: E-Cube Type 0 3x3x3
PostPosted: Mon Dec 16, 2013 11:30 pm 
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Looking at that last picture I would say the holes in the core that the screws screw into have a larger diameter then the holes in the face center pieces that the screws must pass through. You may want to double check that...

Carl

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 Post subject: Re: E-Cube Type 0 3x3x3
PostPosted: Tue Dec 17, 2013 8:52 am 
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Thanks for pointing that out. :) I will fix that.

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 Post subject: Re: E-Cube Type 0 3x3x3
PostPosted: Tue Dec 17, 2013 9:17 am 
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More mechanism pictures
Attachment:
zzzzzzzz E 05.png
zzzzzzzz E 05.png [ 324.76 KiB | Viewed 1470 times ]
Attachment:
zzzzzzzz E 06.png
zzzzzzzz E 06.png [ 112.74 KiB | Viewed 1470 times ]
Attachment:
zzzzzzzz E 07.png
zzzzzzzz E 07.png [ 206.44 KiB | Viewed 1470 times ]
Attachment:
zzzzzzzz E 08.png
zzzzzzzz E 08.png [ 243.31 KiB | Viewed 1470 times ]
Attachment:
zzzzzzzz E 09.png
zzzzzzzz E 09.png [ 139.86 KiB | Viewed 1470 times ]

Enjoy! :D

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 Post subject: Re: E-Cube Type 0 3x3x3
PostPosted: Tue Dec 17, 2013 7:52 pm 
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Those edges are really neat looking.

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 Post subject: Re: E-Cube Type 0 3x3x3
PostPosted: Tue Dec 17, 2013 8:04 pm 
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Don't the many levels of the mechanism cause more friction than is necessary? It's neat looking, but I don't know if it will turn as good as it looks.

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 Post subject: Re: E-Cube Type 0 3x3x3
PostPosted: Tue Dec 17, 2013 8:36 pm 
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I don't think so.

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 Post subject: Re: E-Cube Type 0 3x3x3
PostPosted: Tue Dec 17, 2013 10:47 pm 
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Friction is not dependent on surface area, only on materials, texture, and pressure.
If you look at the cross section, I have left spaces between pieces so that they don't jam.
Type 6 has 4 mechanism layers, and it turns very well.

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 Post subject: Re: E-Cube Type 0 3x3x3
PostPosted: Wed Dec 18, 2013 12:04 am 
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Yet another very interesting and promising design. :D I am really looking forward to trying some of your designs out. You've got a bright future ahead of you.

I really love the corners of this cube, though I'd make the corner even more pointy on those 3 points. It wouldn't hurt anything at all because the centers are already so rounded. It would also add more stability halfway through a turn because there would be more flat surface of the corner against the flat surface of the edge. If corner cutting becomes a problem, I say round the edge more because those points are what stop corner twisting. I also really like how the centers are pretty very circular on the outside so that they don't interfere with the corners, but they also get pretty square a little deeper in the cube which stabilizes the cube because the flat surface contact between the edge and center.

I've though of having the edges go up under the centers like that (and the torpedo parts of the edges going up into the base of the corner as well), and I rejected the idea. First of all, to allow for corner cutting at all, you'd have to have it loose with a lot of extra room in there, so a farther in internal anchoring of the edges between the centers is needed for stability. You have this. But no matter how much extra room you have in that part between those hooks on the edges and the center grooves, your still going to be restricting the corner cutting to some certain amount. While this does virtually make the cube unpopable (concerning this, You might want to check and make sure the cube can actually be assembled. It may be hard getting the last piece in.), I don't think it is worth the reduction in corner cutting because cubes can already be made hard to pop if the parts of the cube overlap far enough. There is also the increased chance of lock ups if the pieces twist even a slight amount while turning. This is a personal opinion and I wouldn't go changing your whole design because of it. I don't really 100% know that the cube won't be better with these. If you made a version with and a version without though, you'd be able to see what works better.

Some changes I'd like to see are the part of the edge that sticks out under the corner extended (I'm not talking about the torpedo), and the more square part of the center enlarged. Concerning how square the centers should be, I think you could leave them about how they are. Rather than rounding the square part of the center more, I think you could go with rounding the part of the edges that would hit there if the layer is not aligned straight enough. This should only be done to allow for as much corner cutting as the rest of the cube design allows for. Also (as I previously mentioned), making the corners more pointed on the parts where that would touch the center if it was not so round.

I noticed those reverse fillets (I don't know the actually name for them if there is one) on the edges to allow for corner cutting. This makes the cube corner cut easily up to a certain point, but anything past that it won't be able to do. I don't really know which would work better for speedcubing, so I ask why did you decide to do those instead of regular fillets? Is it just a matter of preference, or is there some reasoning behind it?

If you ever plan on actually getting these manufactured, will you leave the pieces whole like that are and just rely on the holes in them to reduce plastic, or will you make them into separate pieces that snap together in some way like all cube companies do? I'd like to see them just be solid pieces, but if you do seperate them, how will you do it? I personally prefer the way Fangshi does it to the Dayan style pieces. Also, I understand that this will increase the corst, but could you design it without putting holes into it to reduce the amount of plastic? I would like to have a cube that actually has a bit of weight to it, though most people would dislike it because it would increase the pressure on the pieces (because of gravity) therefore increasing friction. I think that it would give a feeling of stability though, and that lubricant will make the cube spin easily anyway.

One last thing. I'm pretty sure surface area does play a part in friction, it just does not make much difference if you have all of the other things you've listed already in check.


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 Post subject: Re: E-Cube Type 0 3x3x3
PostPosted: Wed Dec 18, 2013 3:29 pm 
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The version without those hooks is type 4.

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 Post subject: Re: E-Cube Type 0 3x3x3
PostPosted: Wed Dec 18, 2013 11:05 pm 
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I asked the speedsolving community about what kind of corner cutting ability they would like to have. They all said that for fast cubers (who should turn pretty precisely), cutting small cuts (a cubie or less) with ease is much more important than the range of the corner cutting, so they approve of the reverse fillet design.


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 Post subject: Re: E-Cube Type 0 3x3x3
PostPosted: Fri Dec 20, 2013 8:46 am 
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I hope that if the reverse fillets show up in new cubes, that you will tell me.

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 Post subject: Re: E-Cube Type 0 3x3x3
PostPosted: Sat Dec 21, 2013 2:09 pm 
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E-Cubes Designer X wrote:
I hope that if the reverse fillets show up in new cubes, that you will tell me.

I will inform you if I see other cubes with reverse fillets. If you plan on keeping other companies from doing this though, I'm not sure how you would go about enforcing it.


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 Post subject: Re: E-Cube Type 0 3x3x3
PostPosted: Fri Dec 27, 2013 11:19 am 
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I fixed the ringing problem by using the hard rubber core that I designed for it. It is now my main 3x3x3 speed cube. :)

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 Post subject: Re: E-Cube Type 0 3x3x3
PostPosted: Sat Dec 28, 2013 1:18 am 
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Good thinking! Just one question. Where did you get a rubber core?


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 Post subject: Re: E-Cube Type 0 3x3x3
PostPosted: Sat Dec 28, 2013 11:14 pm 
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I had it cut out of hard rubber in my college machining shop, and it looks like it has no screw holes, because I used pins to make them.

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