Triple Fused Petaminxes

Tony Fisher's Triple Fused Petaminxes Puzzle
Demonstration
Stickering (speeded up)

HKnowstore Puzzles

 

Tony Fisher's Triple Fused Petaminxes Puzzle
Tony Fisher's Triple Fused Petaminxes & Open Petaminx
Tony Fisher's Triple Fused Petaminxes Puzzle
Tony Fisher's Triple Fused Petaminxes Puzzle
Tony Fisher's Triple Fused Petaminxes Puzzle
Tony Fisher's Triple Fused Petaminxes Puzzle
Tony Fisher's Triple Fused Petaminxes Puzzle
Tony Fisher's Triple Fused Petaminxes Puzzle
Tony Fisher's Triple Fused Petaminxes Puzzle
Tony Fisher's Triple Fused Petaminxes Puzzle
Tony Fisher's Triple Fused Petaminxes Puzzle
Tony Fisher's Triple Fused Petaminxes Puzzle
Tony Fisher's Triple Fused Petaminxes Puzzle
Tony Fisher's Triple Fused Petaminxes Puzzle
Tony Fisher's Triple Fused Petaminxes Puzzle
Tony Fisher's Triple Fused Petaminxes Puzzle
Tony Fisher's Triple Fused Petaminxes Puzzle
Tony Fisher's Triple Fused Petaminxes Puzzle
Tony Fisher's Triple Fused Petaminxes Puzzle
Tony Fisher's Triple Fused Petaminxes Puzzle
Tony Fisher's Triple Fused Petaminxes Puzzle
Tony Fisher's Triple Fused Petaminxes Puzzle
Tony Fisher's Triple Fused Petaminxes Puzzle
Tony Fisher's Triple Fused Petaminxes Puzzle
Tony Fisher's Triple Fused Petaminxes Puzzle
Tony Fisher's Triple Fused Petaminxes Puzzle
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Idea Conceived

Prototype finished

Revealed

Original concept

Core puzzle

Dimensions

Weight

 

2009 & 2012

15th October 2012

27th October 2012

Kelvin Stott / Tony Fisher

3 x Petaminx

5.8 cm / 2.3 inch edge  

2.4kg / 5.3 lbs  

 

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The History
On the twistypuzzle forum there has been a long running joke about a Triple Fused Void Petaminx. It started with a post by Kelvin Stott on 26th June 2009 titled "Triple fused void petaminx". The post simply contained the words "Just joking". This was only a few months after the first ever Petaminx was 3D printed and the idea of such a puzzle was ridiculous. Mainly because the Petaminx was regarded as a huge achievement and a void one seemed virtually impossible. Even if someone made it, why on earth would they make two more just to join them altogether? So the joke is often used to answer such questions as "What puzzle should I make next"?
It became less ridiculous in 2010 when Sky and Will made the world's first Void Petaminx. The jokes continued but now it was known that the TFVP was possible. The Void Petaminx however was also 3D printed which means it cost a fortune. Until a cheaper version appears it seems unlikely that three of these would be used.
In 2012 MF8 released a factory made Petaminx. It was not void however and doesn't help at all in the quest for a Triple Fused Void Petaminx. It did however allow someone to make the next best thing and that someone of course is me!
After all these years I suddenly realised that the phrase "Triple Fused Void Petaminx" is grammatically wrong. So with a slight adjustment and regrettably missing out the word "void" I present my Triple Fused Petaminxes.

For Sale

 
Dayan Speed Megaminx at Tony Fisher's Puzzle store

The Puzzle
The three puzzles function independent of each other so no cross mixing is possible. Each Petaminx acts as if it is bandaged. The middle one is restricted to movement on just two adjacent sides along with their respective three associated layers. The end Petaminxes are identical to each other in terms of movement and behave as if one side with associated layers is bandaged.
Because of the joins there are areas which cannot be moved. This includes two pseudo 4x4x4s on the middle Petaminx. That means 292 of the 2512 stickers are redundant though 2220 is still far more than a fully stickered 17x17x17 or Examinx. These stickers are on 1686 mixable parts.
Rotational movement is as good as a regular Petaminx. As you can see in the video you need to line things up correctly but that is true of all high order puzzles.


 
 
 
Dayan Speed Megaminx at Tony Fisher's Puzzle store
 
 

The Making
I am not sure if there are "rules" regarding how three fused puzzles should be joined together but I guess fused is fused at the end of the day. Joining them in a straight row would have resulted in an unusable middle puzzle unless they were joined corner to corner to corner. I decided to go for the option which allows me to recover the three Petaminxes later if I wish. This meant that instead of just gluing the puzzles together I had to construct special joining pieces which could fit into the puzzles like any other regular piece and be removed if so desired. In order to make these parts I used Loctite Superglue to glue some pieces I had left over from my Open Petaminx puzzle together. I then filled in some of the gaps with black Milliput.
I then made a mould from T28 RTV silicone rubber. It's British and can't be shipped abroad so I recommend Smooth-on Oomoo. When the moulds were ready I cast the nine pieces in Biresin 26 polyurethane resin (I recommended USA version- Alumilite). I made nine instead of ten because where the puzzles are closest together you need a special three way join. I made this by gluing one of my cast pieces to some more spare Petaminx parts.
The puzzle was now ready for assembly. With so many pieces it was very awkward to work with. I desperately wanted to avoid a full assembly from totally loose pieces so tried throughout to keep it in the three main Petaminx parts. I used a lot of masking tape and managed it.
Stickering took just under three hours and I have a speeded up video of the entire process. I will upload it to My Youtube channel in a few days. I also hope to add a video of the making but I need to see if I have enough footage first.


 
 
Pentahedron
 
 
 
 
 
 
 
 
 
 
4x4x6 by Tom van der Zanden & Calvin Puzzles
 
 
 
 
2x3x4
 
 
 
 
Master Pyraminx
 
 
 
 
 
 
 
 
Black Fisher by Tony Fisher & Uwe Meffert