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 Post subject: Greg's ETRT Masterpiece *** video added***
PostPosted: Thu Feb 21, 2013 1:43 pm 
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I asked Greg to design this for me. He made it in the last week. It tooks him only some hours.

And now the unbelievable: Shapeways printed it in only 2 days in WSF polished.

Here are the first assembling results. I think it will take me more time for finishing as Greg and Shapeways together.

Attachment:
cw_Greg's Masterpiece (1).jpg
cw_Greg's Masterpiece (1).jpg [ 1.87 MiB | Viewed 7484 times ]

Attachment:
cw_Greg's Masterpiece (2).jpg
cw_Greg's Masterpiece (2).jpg [ 1.62 MiB | Viewed 7484 times ]


BTW: What is it?


Last edited by clauswe on Wed Mar 06, 2013 3:52 am, edited 2 times in total.

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 Post subject: Re: Greg's Masterpiece
PostPosted: Thu Feb 21, 2013 2:10 pm 
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Very tough to solve, that is for sure!

It looks mighty interesting and LOTS of pieces.. wow. :)


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 Post subject: Re: Greg's Masterpiece
PostPosted: Thu Feb 21, 2013 2:19 pm 
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Semi-edge/vertex-turning rhombic triacontahedron?

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 Post subject: Re: Greg's Masterpiece
PostPosted: Thu Feb 21, 2013 2:41 pm 
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This is reminiscent of an idea posted in the GB thread by Stefan: viewtopic.php?f=8&t=7830&start=3050

This looks like a corner-turning rhombicosidodecahedron that has been shape-modded into a rhombic triacontahedron. It looks like it may be difficult to scramble effectively. Pretty spectacular surface-cut pattern in any case!


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 Post subject: Re: Greg's Masterpiece
PostPosted: Thu Feb 21, 2013 2:44 pm 
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Face turning deltoidal hexacontahedron in the shape of a rhombic triancontahedron. Much like Eitan's shape transformation of the FTDI to the Edge Turning Rhombic Dodecahedron.

Looks pretty cool.

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 Post subject: Re: Greg's Masterpiece
PostPosted: Thu Feb 21, 2013 3:14 pm 
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Yes Luke, this is an ETRT :)
Also for those wondering why the core is so strange, it's because I had to make circular pieces (centers of rotation) attached to the theoretical center pieces, but these pieces, that always stay on their 'face', like a 3x3 center, don't pass through the axis of rotation, meaning I couldn't put a screw directly in them. Claus, would you mind posting a picture of a center please ? :)

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 Post subject: Re: Greg's Masterpiece
PostPosted: Thu Feb 21, 2013 3:21 pm 
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I knew I'd seen the mechanism somewhere before:



They're suction cups! :D

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 Post subject: Re: Greg's Masterpiece
PostPosted: Fri Feb 22, 2013 2:01 am 
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Greg, here is the picture you asked for.

Attachment:
cw_Greg's ETRT (1).jpg
cw_Greg's ETRT (1).jpg [ 1.34 MiB | Viewed 7241 times ]


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 Post subject: Re: Greg's ETRT Masterpiece
PostPosted: Fri Feb 22, 2013 10:37 am 
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Not only a masterpiece but an unfinished one.
That is so unfair.


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 Post subject: Re: Greg's ETRT Masterpiece
PostPosted: Sat Feb 23, 2013 6:00 pm 
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Who's damned to sticker it :shock:

Anyway - hope it will twist acceptable. I like to see it on our next meeting. Together with the Penguin of course. GCD?

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 Post subject: Re: Greg's ETRT Masterpiece
PostPosted: Tue Feb 26, 2013 4:33 pm 
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Beautiful puzzle.
Stickers are on their way. ;) Can't wait to see the outcome.

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 Post subject: Re: Greg's ETRT Masterpiece
PostPosted: Thu Feb 28, 2013 3:30 am 
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I assembled the puzzles. It was the hardest work I have ever done by puzzles. I will describe it like assembling of the 24 cube blind and with gloves on both hands.

But the result looks pretty good. The sticker sets cut by Oliver arrived. Thank you so much for this "tiny" job. Before starting stickering I made the lubrication. I need much spray to make it very good moveable.

Here the puzzle after finishing three faces.

Attachment:
cw_Greg's ETRT WIP (1).JPG
cw_Greg's ETRT WIP (1).JPG [ 3.47 MiB | Viewed 6635 times ]

Attachment:
cw_Greg's ETRT WIP (2).JPG
cw_Greg's ETRT WIP (2).JPG [ 3.48 MiB | Viewed 6635 times ]



I'll hope I can show you a video of the complete puzzle on weekend.
But it will be hard to scramble. It does shapeshifting and jumbling but only for the tiny pieces.


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 Post subject: Re: Greg's ETRT Masterpiece
PostPosted: Thu Feb 28, 2013 3:38 am 
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That's going to be insane! If you accidentally scramble it, you can take it apart and re-assemble it, now that you know how to do it :lol:

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 Post subject: Re: Greg's ETRT Masterpiece
PostPosted: Thu Feb 28, 2013 7:07 am 
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I can't even see how it is ging to be moved. It looks beautiful :)


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 Post subject: Re: Greg's ETRT Masterpiece
PostPosted: Thu Feb 28, 2013 8:02 am 
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EMI94100 wrote:
I can't even see how it is ging to be moved. It looks beautiful :)
I think it turns like this:
Attachment:
File comment: Turning
delete_me.JPG
delete_me.JPG [ 735.37 KiB | Viewed 6542 times ]
And it is very pretty. Any guesses on the jumbling guys?

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 Post subject: Re: Greg's ETRT Masterpiece
PostPosted: Thu Feb 28, 2013 10:54 am 
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I'm assuming the tiny center pieces have the same shape as the faces?
If so, would a 1,1 commutator of a group of 3 tiny pieces block faces from turning?
(I hope you can imagine what I mean, I can't upload pictures from my phone)

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 Post subject: Re: Greg's ETRT Masterpiece
PostPosted: Thu Feb 28, 2013 11:20 am 
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clauswe wrote:
It was the hardest work I have ever done by puzzles. I will describe it like assembling of the 24 cube blind and with gloves on both hands.
Take that as a punishment!
Don't ask me what you have done for deserving it. :P
Wait. I know what you did to deserve it. You didn't sticker it completely.


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 Post subject: Re: Greg's ETRT Masterpiece
PostPosted: Thu Feb 28, 2013 10:43 pm 
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Am I missing something, or does this puzzle only do jumbling moves?

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 Post subject: Re: Greg's ETRT Masterpiece
PostPosted: Thu Feb 28, 2013 10:54 pm 
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Problem Solver wrote:
Am I missing something, or does this puzzle only do jumbling moves?

You're right. It's similar to Eitan's edge turning Rhombic Dodecahedron.

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 Post subject: Re: Greg's ETRT Masterpiece
PostPosted: Fri Mar 01, 2013 1:36 am 
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WOW!!! This looks crazy. Is this the first puzzle with 30 axes of rotation? Let's see... I count 510 stickers and 362 surface pieces that need to be solved. Yes, this is crazy alright.

Great work!!!
Carl

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 Post subject: Re: Greg's ETRT Masterpiece
PostPosted: Fri Mar 01, 2013 7:16 am 
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wwwmwww wrote:
WOW!!! This looks crazy. Is this the first puzzle with 30 axes of rotation? Let's see... I count 510 stickers and 362 surface pieces that need to be solved. Yes, this is crazy alright.

Great work!!!
Carl

No:
Helicopter Dodecahedron
Greg's FTRT
Eitan's Big Kahuna
Dodecacopter II

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 Post subject: Re: Greg's ETRT Masterpiece
PostPosted: Fri Mar 01, 2013 9:17 am 
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Doug Roth wrote:
wwwmwww wrote:
WOW!!! This looks crazy. Is this the first puzzle with 30 axes of rotation? Let's see... I count 510 stickers and 362 surface pieces that need to be solved. Yes, this is crazy alright.

Great work!!!
Carl

No:
Helicopter Dodecahedron
Greg's FTRT
Eitan's Big Kahuna
Dodecacopter II

-Doug

Not quite. Those puzzles have 15 axes of rotation, not 30. Two centers lie on each axis.

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 Post subject: Re: Greg's ETRT Masterpiece
PostPosted: Fri Mar 01, 2013 10:28 am 
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wwwmwww wrote:
WOW!!! This looks crazy. Is this the first puzzle with 30 axes of rotation? Let's see... I count 510 stickers and 362 surface pieces that need to be solved. Yes, this is crazy alright.

Great work!!!
Carl


Just to clear things up a bit, this puzzle has 30 axes of rotation if you consider the 3x3 to have 3. If you consider the 3x3 to have 6,this one has 60. I believe it is the first one to have 30 indeed.

It is not the first one, considering Oskar made the big boulder, which also has 30, but his and mine have slightly different basic geomtries.

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 Post subject: Re: Greg's ETRT Masterpiece
PostPosted: Fri Mar 01, 2013 11:01 am 
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RubixFreakGreg wrote:
Oskar made the big boulder, which also has 30


I'm pretty sure (someone correct me if this is wrong) that the Big Boulder actually does have 60. The reason is because the pentagonal hexecontahedron does not have parallel opposing faces, unlike the deltoidal hexecontahedron.


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 Post subject: Re: Greg's ETRT Masterpiece
PostPosted: Mon Mar 04, 2013 5:07 am 
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I finished stickering. And the result is a great turning puzzle.
Attachment:
cw_Greg's ETRT stickered (1).jpg
cw_Greg's ETRT stickered (1).jpg [ 1.44 MiB | Viewed 5985 times ]

Attachment:
cw_Greg's ETRT stickered (2).jpg
cw_Greg's ETRT stickered (2).jpg [ 1.39 MiB | Viewed 5985 times ]

Attachment:
cw_Greg's ETRT stickered (3).jpg
cw_Greg's ETRT stickered (3).jpg [ 1.45 MiB | Viewed 5985 times ]

Attachment:
cw_Greg's ETRT stickered (4).jpg
cw_Greg's ETRT stickered (4).jpg [ 1.48 MiB | Viewed 5985 times ]


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 Post subject: Re: Greg's ETRT Masterpiece
PostPosted: Mon Mar 04, 2013 5:30 am 
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Man, that is a very nice puzzle. How long did the stickering take? Are you going to post a video? But, (said in a loud and menacing voice) scramble it, SCRAMBLE IT, SCRAMBLE IT! :lol:

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 Post subject: Re: Greg's ETRT Masterpiece
PostPosted: Mon Mar 04, 2013 5:43 am 
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The stickering took 1 and a half football game, 2 hours 15 minutes.

Yes I will show a video of it. But not before Wednesday when I come home.


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 Post subject: Re: Greg's ETRT Masterpiece
PostPosted: Mon Mar 04, 2013 7:49 am 
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I'd be afraid to scramble it LOL!!

It looks awesome!


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 Post subject: Re: Greg's ETRT Masterpiece
PostPosted: Mon Mar 04, 2013 10:42 am 
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Thank you for finishing it. I got panic when you wrote this:
clauswe wrote:
I made a break in stickering the ETRT ...


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 Post subject: Re: Greg's ETRT Masterpiece
PostPosted: Mon Mar 04, 2013 11:44 am 
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This just looks so beautiful... Well done Greg!!!

:)


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 Post subject: Re: Greg's ETRT Masterpiece *** video added***
PostPosted: Wed Mar 06, 2013 3:52 am 
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You can watch a short video clip here:

https://www.youtube.com/watch?v=sd8kQmYtoXA

It is available in my shapeway shop:

http://www.shapeways.com/shops/clauswe


Last edited by clauswe on Wed Mar 06, 2013 7:42 am, edited 1 time in total.

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 Post subject: Re: Greg's ETRT Masterpiece *** video added***
PostPosted: Wed Mar 06, 2013 5:23 am 
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Wow, it is so nice after stickered !!!
:D :P

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 Post subject: Re: Greg's ETRT Masterpiece *** video added***
PostPosted: Wed Mar 06, 2013 12:38 pm 
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Awesome!!! :D


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 Post subject: Re: Greg's ETRT Masterpiece *** video added***
PostPosted: Wed Mar 06, 2013 12:54 pm 
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Is this a jumbling-only puzzle?

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 Post subject: Re: Greg's ETRT Masterpiece *** video added***
PostPosted: Wed Mar 06, 2013 1:10 pm 
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Beautiful puzzle. That is going to take some time to solve let alone to shuffle


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 Post subject: Re: Greg's ETRT Masterpiece *** video added***
PostPosted: Wed Mar 06, 2013 7:08 pm 
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Ordered. Shapeways is saying March 19th for shipping. Maybe I'll have the first one in black!

Now to find (mail-order) sixty M3 screws!

Claus... can you please provide the length of the M3 screws you used. The description only gives the length of the twelve M2 screws.

Also... did you use glue for the small stickers?

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 Post subject: Re: Greg's ETRT Masterpiece *** video added***
PostPosted: Wed Mar 06, 2013 7:22 pm 
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Pete, M3x20 to M3x30 will do just fine ! :)

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 Post subject: Re: Greg's ETRT Masterpiece *** video added***
PostPosted: Thu Mar 07, 2013 8:33 am 
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Beautiful!! I wonder if it were possible to make this so you could have non-jumbling turns as well as the jumbling ones? Deeper cut maybe?


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 Post subject: Re: Greg's ETRT Masterpiece *** video added***
PostPosted: Thu Mar 07, 2013 1:05 pm 
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..and I am surprised it is so cheap on Shapeways!
Too tempting!

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 Post subject: Re: Greg's ETRT Masterpiece *** video added***
PostPosted: Sun Mar 10, 2013 11:01 pm 
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Frank Tiex wrote:
..and I am surprised it is so cheap on Shapeways!
Too tempting!
I really hope you are tempted! I hope everyone is tempted. Think of all the fun assembling and stickering. That alone could make it worth the cost. :mrgreen: In any case, I will make a series of videos on my channel so people can see a bit more of the puzzle.

I'm interested in the ETRT because it has an awesome geometry - rhombic triacontahedron - and a very interesting turning mechanism. The rhombic triacontahedron has 60 edges, so making an edge-turning puzzle on this solid is an excellent idea.

ETA: Shapeways is sending the puzzle early. It is now scheduled for delivery on March 14 (Pi Day).

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 Post subject: Re: Greg's ETRT Masterpiece *** video added***
PostPosted: Thu Mar 14, 2013 10:05 pm 
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:mrgreen: :mrgreen: :mrgreen:
Attachment:
ETRT_Pieces_White_sm.png
ETRT_Pieces_White_sm.png [ 267.55 KiB | Viewed 4941 times ]

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 Post subject: Re: Greg's ETRT Masterpiece *** video added***
PostPosted: Thu Mar 14, 2013 11:26 pm 
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What have you done to get this punishment?

Thanks for buying. Have fun in the next days and please don't dash it against the wall.


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 Post subject: Re: Greg's ETRT Masterpiece *** video added***
PostPosted: Fri Mar 15, 2013 4:55 pm 
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clauswe wrote:
What have you done to get this punishment?
I just can't resist an Edge Turning Rhombic Triacontahedron twisty puzzle. :mrgreen: Thanks for making it available!

I'm still waiting for the screws and I'm working with Shapeways on a missing piece, so it could be next week before I get to work on the assembly. I really enjoy assembling puzzles, so this will be a lot of fun!

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 Post subject: Re: Greg's ETRT Masterpiece *** video added***
PostPosted: Fri Mar 15, 2013 7:43 pm 
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I would like to see someone mod this into a tetrahedron :lol: That would result in a world record: the puzzle with the most cuts per face :shock:

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 Post subject: Re: Greg's ETRT Masterpiece *** video added***
PostPosted: Sat Mar 16, 2013 6:09 pm 
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benpuzzles wrote:
I would like to see someone mod this into a tetrahedron :lol: That would result in a world record: the puzzle with the most cuts per face :shock:


Well this is virtually impossible, but if this was modded into a sphere, it would have even more cuts per face :lol:

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 Post subject: Re: Greg's ETRT Masterpiece *** video added***
PostPosted: Sat Mar 16, 2013 6:24 pm 
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Well to make it into a tetrahedron wouldn't the cuts need to be deeper? There's a challenge for you designers; a deeper cut edge turning rhombic triacontahedron :D

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 Post subject: Re: Greg's ETRT Masterpiece *** video added***
PostPosted: Sat Mar 16, 2013 6:24 pm 
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Is this a deep-cut puzzle? :P

Joking aside, I think it must be one of the most shallow-cut puzzles I've ever seen ... unless you can think of another?

And another possible record - the smallest stickers, with those iddy biddy ones on each face?

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 Post subject: Re: Greg's ETRT Masterpiece *** video added***
PostPosted: Sun Mar 17, 2013 11:56 am 
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KelvinS wrote:
Joking aside, I think it must be one of the most shallow-cut puzzles I've ever seen ... unless you can think of another?

What about a babyface cube? Those cuts are very shallow, of course there are other cuts on the cube, so I'm not sure how you define shallow-cut puzzle.
Great work Greg! This is a puzzle that I would get and just look at because it looks so nice.


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 Post subject: Re: Greg's ETRT Masterpiece *** video added***
PostPosted: Sun Mar 17, 2013 12:01 pm 
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eye2eye wrote:
KelvinS wrote:
Joking aside, I think it must be one of the most shallow-cut puzzles I've ever seen ... unless you can think of another?

What about a babyface cube? Those cuts are very shallow, of course there are other cuts on the cube, so I'm not sure how you define shallow-cut puzzle.
Great work Greg! This is a puzzle that I would get and just look at because it looks so nice.


Babyfaces aren't shallow cut, a baby face 3x3x3 is the same as a cornerless 5x5x5 with the faces shaved down.

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 Post subject: Re: Greg's ETRT Masterpiece *** video added***
PostPosted: Sun Mar 17, 2013 1:02 pm 
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KelvinS wrote:
And another possible record - the smallest stickers, with those iddy biddy ones on each face?
To give an idea, the coin is 19 mm in diameter. The two smallest pieces are at the bottom right. There are 30 of the diamond-shaped pieces and 120 of the arrow-shaped pieces to be stickered. Basically, I'm going to get my money's worth just from the assembly and stickering. :mrgreen:
Attachment:
ETRT_Pieces_w_Penny_sm.png
ETRT_Pieces_w_Penny_sm.png [ 287.53 KiB | Viewed 4563 times ]

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