Any Rubik's Cube fans around here?

Stump your fellow simians.
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silverdrake
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Re: Any Rubik's Cube fans around here?

Post by silverdrake »

Ya got me there, Abdul. :D

How long have ya been working on it?

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Abdul Alhazred
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Re: Any Rubik's Cube fans around here?

Post by Abdul Alhazred »

silverdrake wrote:Ya got me there, Abdul. :D

How long have ya been working on it?
Off and on for a few months.

But I got as far as I did in a few hours.
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Abdul Alhazred
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Re: Any Rubik's Cube fans around here?

Post by Abdul Alhazred »

8)

[youtube][/youtube]
Last edited by Abdul Alhazred on Sat Nov 14, 2015 9:00 pm, edited 1 time in total.
Image "If I turn in a sicko, will I get a reward?"

"Yes! A BIG REWARD!" ====> Click here to turn in a sicko
The arc of the moral universe bends towards chaos.
People who believe God or History are on their side provide the chaos.

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asthmatic camel
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Re: Any Rubik's Cube fans around here?

Post by asthmatic camel »

And Abdul slags me off for being a slot car nerd...
Shit happens. The older you get, the more often shit happens. So you have to try not to give a shit even when you do. Because, if you give too many shits, you've created your own shit creek and there's no way out other than swimming through the shit. Oh, and fuck.

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Abdul Alhazred
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Re: Any Rubik's Cube fans around here?

Post by Abdul Alhazred »

asthmatic camel wrote:And Abdul slags me off for being a slot car nerd...
Is staying awake all night watch slot cars go around really being a nerd?

Admittedly there's a certain amount mathematical nerd cred created by using up all the curves and still fitting it all on the floor of your closet.

:P
Image "If I turn in a sicko, will I get a reward?"

"Yes! A BIG REWARD!" ====> Click here to turn in a sicko
The arc of the moral universe bends towards chaos.
People who believe God or History are on their side provide the chaos.

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asthmatic camel
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Re: Any Rubik's Cube fans around here?

Post by asthmatic camel »

I knew all those hoarded CD & DVD cases would come in handy one day.

:)
Shit happens. The older you get, the more often shit happens. So you have to try not to give a shit even when you do. Because, if you give too many shits, you've created your own shit creek and there's no way out other than swimming through the shit. Oh, and fuck.

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Abdul Alhazred
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Re: Any Rubik's Cube fans around here?

Post by Abdul Alhazred »

Update: Ta-daah!

[youtube][/youtube]
Image "If I turn in a sicko, will I get a reward?"

"Yes! A BIG REWARD!" ====> Click here to turn in a sicko
The arc of the moral universe bends towards chaos.
People who believe God or History are on their side provide the chaos.

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Abdul Alhazred
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Re: Any Rubik's Cube fans around here?

Post by Abdul Alhazred »

8)

[youtube][/youtube]
Image "If I turn in a sicko, will I get a reward?"

"Yes! A BIG REWARD!" ====> Click here to turn in a sicko
The arc of the moral universe bends towards chaos.
People who believe God or History are on their side provide the chaos.

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Abdul Alhazred
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Re: Any Rubik's Cube fans around here?

Post by Abdul Alhazred »

Bored with cubes? :coolspecs:

Image "If I turn in a sicko, will I get a reward?"

"Yes! A BIG REWARD!" ====> Click here to turn in a sicko
The arc of the moral universe bends towards chaos.
People who believe God or History are on their side provide the chaos.

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Abdul Alhazred
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Re: Any Rubik's Cube fans around here?

Post by Abdul Alhazred »

Like cubes but bored with 90 degree angles?

Image "If I turn in a sicko, will I get a reward?"

"Yes! A BIG REWARD!" ====> Click here to turn in a sicko
The arc of the moral universe bends towards chaos.
People who believe God or History are on their side provide the chaos.

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Abdul Alhazred
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Re: Any Rubik's Cube fans around here?

Post by Abdul Alhazred »

This one would be good for "Conjurer's Corner" from the glory days of JREF.

Image "If I turn in a sicko, will I get a reward?"

"Yes! A BIG REWARD!" ====> Click here to turn in a sicko
The arc of the moral universe bends towards chaos.
People who believe God or History are on their side provide the chaos.

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ceptimus
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Re: Any Rubik's Cube fans around here?

Post by ceptimus »

Here's a part of my puzzle collection photographed about nine years ago. It's grown considerably since then. I've solved all the puzzles at one time or another, and still remember how to solve many of them.
puzzles.jpg
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Abdul Alhazred
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Re: Any Rubik's Cube fans around here?

Post by Abdul Alhazred »

I'm jealous. :figamagee:
Image "If I turn in a sicko, will I get a reward?"

"Yes! A BIG REWARD!" ====> Click here to turn in a sicko
The arc of the moral universe bends towards chaos.
People who believe God or History are on their side provide the chaos.

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ceptimus
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Re: Any Rubik's Cube fans around here?

Post by ceptimus »

Abdul Alhazred wrote:
Sat Jan 11, 2020 4:14 pm
This one would be good for "Conjurer's Corner" from the glory days of JREF.
You can make the two gearwheels' diameters with the ratio of sqrt(2) but it's the number of teeth that matter.

So you choose two ratios of teeth that are close to sqrt(2) which when multiplied together result in 2. For example the one double wheel can have 120/86 teeth and the other pair that drive the two parts of the rubik cuboid 129/90 teeth.

120/86 x 129/90 = 2

120/86 = 98.67% of sqrt(2), 129/90 = 101.35% of sqrt(2) - both these ratios are so close to sqrt(2) and to each other that they would pass a cursory inspection - the teeth on the gearwheels vary slightly in size but they are within three percent of each other and would mesh perfectly well given the loose fit of the 3D-printed plastic components.

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Abdul Alhazred
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Re: Any Rubik's Cube fans around here?

Post by Abdul Alhazred »

One more time!

Image "If I turn in a sicko, will I get a reward?"

"Yes! A BIG REWARD!" ====> Click here to turn in a sicko
The arc of the moral universe bends towards chaos.
People who believe God or History are on their side provide the chaos.