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 Post subject: mini mental block questions
PostPosted: Mon Sep 27, 2010 3:41 pm 
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hello I have gotten some nice tips posting topics like this one before, so I try again with a new puzzle!

I want to build a Mini Mental Block puzzle from a keychain creative ball from Mefferts.

However, I dont really have a plan for it yet! Could anyone provide me some tips for this?

How about cutting each wall needed from the sheeting, then use cut cubies to make angles correct?

Or some other appoach?

Thanks!

Sigurd

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 Post subject: Re: mini mental block questions
PostPosted: Mon Sep 27, 2010 6:03 pm 
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wow thats a GREAT idea!

I always wanted a "mental midget" (i forget who came up with that) but they stopped selling key chain skewbs.

As far as I know, the creative ball has the same mech as a skewb ultimate so this should work...


I have little experience in fabrication, but I would recommend buying plastic sheeting to make piece extensions. First I would bandage the pieces on the normal ball the make sure that this will work. Then make mental block piece extensions and hollow them out into a shape to fit the ball with a dremel and glue them on.

Hope that made sense and I didnt break any rules, only my 4th post :D

Adam


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 Post subject: Re: mini mental block questions
PostPosted: Mon Sep 27, 2010 6:55 pm 
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Doubleyou wrote:
hello I have gotten some nice tips posting topics like this one before, so I try again with a new puzzle!

I want to build a Mini Mental Block puzzle from a keychain creative ball from Mefferts.

However, I dont really have a plan for it yet! Could anyone provide me some tips for this?

How about cutting each wall needed from the sheeting, then use cut cubies to make angles correct?

Or some other appoach?

Thanks!

Sigurd


Jin H Kim used to make these "Mini Mentals" using blocks of raw ABS and cubic mini skewbs, but I don't think that technique will work well for a spherical puzzle.

What I would do is cut each face from one sheet of plastic sheet, all at once, with the tops and bottom faces smaller by the thickness of your plastic sheet x2 on each side (so if the final puzzle is 57mm x 57mm x 57mm, and your plastic sheet is 1mm thick, make the puzzle 55mm x 55mm x 55mm). Then size up your sphere and cut the non-face parts so they fit onto it.

So basically, you would construct the outside (visible faces) of each part, then measure up and cut the inside faces, if that makes sense.

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 Post subject: Re: mini mental block questions
PostPosted: Tue Sep 28, 2010 6:34 am 
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Now I'm wondering if I should make my mini mental black from shapeways...

- Greg

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 Post subject: Re: mini mental block questions
PostPosted: Tue Sep 28, 2010 10:11 am 
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I actually thought about skipping the building step and just order the one you designed Greg! :)

But I will build it! Just for the fun of it! It it doesnt turn out as good as wanted, I will get yours! How small is that one anyway? It would be cool to have one at the same size as a Floppy Cube :D

As to those who have given me directions,

Adman234, You can easily take off those extensions that makes it a ball, so you have flat faces on those pieces, so no need to hollow out the extensions.
I got plastic sheeting already. I am thinking I will build the pieces off the existing pieces, its just hard (I think) to get the angles right.
Would adding a ball of miliput to the piece, and put the plastic sheeting on that, then adjust, be a bad idea? I think so. :)

It would be nice to have solid blocks of ABS to work with, but it would also be a little heavy dont you think?

Any further advice will be appreciated!

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 Post subject: Re: mini mental block questions
PostPosted: Tue Sep 28, 2010 11:06 am 
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Wait one month and I'll prototype it for you. I have to redesign the tolerances and then it'll be good.

- Greg :)

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 Post subject: Re: mini mental block questions
PostPosted: Tue Sep 28, 2010 12:12 pm 
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but how big is it? could you change the size before prototyping?

as I said, it would be awesome if you could make it Floppy Cube size!

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I believe it would work best with black plastic.

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 Post subject: Re: mini mental block questions
PostPosted: Tue Sep 28, 2010 12:20 pm 
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Doubleyou wrote:
but how big is it? could you change the size before prototyping?

as I said, it would be awesome if you could make it Floppy Cube size!

I think the skewb mech part of it would be way too small to be stable at that size.

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 Post subject: Re: mini mental block questions
PostPosted: Tue Sep 28, 2010 12:22 pm 
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I'll try floppy size, but i'm not sure it'll be easy... That would be like making a 2x2x2 cm 3x3x3...

Harsh, but I bet I can do it :p

- Greg :D

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 Post subject: Re: mini mental block questions
PostPosted: Tue Sep 28, 2010 4:11 pm 
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never mind! Its better with a reasonable size! :)

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I believe it would work best with black plastic.

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 Post subject: Re: mini mental block questions
PostPosted: Tue Sep 28, 2010 5:37 pm 
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Looks like this is going to be a great puzzle! Some pics or video of the puzzle disassembled would be awesome, there is nothing about this puzzle on the internet :)

Please keep us updated on this project!

Adam


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 Post subject: Re: mini mental block questions
PostPosted: Wed Sep 29, 2010 8:17 am 
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I decided to keep the same proportions as a 3x3, so that's 15mm heigh and 30 to a side.

- Greg :D

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 Post subject: Re: mini mental block questions
PostPosted: Wed Sep 29, 2010 2:51 pm 
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RubixFreakGreg wrote:
I decided to keep the same proportions as a 3x3, so that's 15mm heigh and 30 to a side.

- Greg :D


I dont get the logic here.. :S would that be 15 mm height and 35 to the side?

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 Post subject: Re: mini mental block questions
PostPosted: Sat Oct 02, 2010 10:47 am 
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15mm heigh and mental block side to a side!!

- Greg :lol:

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 Post subject: Re: mini mental block questions
PostPosted: Sat Oct 02, 2010 10:56 am 
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RubixFreakGreg wrote:
15mm heigh and mental block side to a side!!

- Greg :lol:


Ok I really feel dumb right now...

30mm heigh like a mini 3x3 and 60mm to a side...

And I will also try 15 and 30

- Greg

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 Post subject: Re: mini mental block questions
PostPosted: Sat Oct 02, 2010 11:22 am 
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A good idea would be making your creative ball into a truncated skewb so that you have a flat surface to plan your mental block on. Then what I would do is extend the corners of your truncated skewb into corners of a skewb so that you have a mini skewb. Then simply paste the plastic sheet onto the skewb so that it will be a mental block. Or try to find a mini skewb somewhere so that you can make it much easier.


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 Post subject: Re: mini mental block questions
PostPosted: Sat Oct 02, 2010 11:50 am 
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The Creative ball has a removable outer shell so it is quite easy to break down into a more usable form.
Please remember this is one of my protected puzzles so it should be made for personal use only. Good luck with your project.

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 Post subject: Re: mini mental block questions
PostPosted: Sat Oct 02, 2010 12:01 pm 
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Tony Fisher wrote:
The Creative ball has a removable outer shell so it is quite easy to break down into a more usable form.
Please remember this is one of my protected puzzles so it should be made for personal use only. Good luck with your project.


Well good bye MMB sorry guys... I just had to ask permission.

- Greg

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 Post subject: Re: mini mental block questions
PostPosted: Sun Oct 03, 2010 5:05 am 
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Tony, I dont want to be a pain to nobody, but were you (I bet you are) aware that Jin H Kim was selling mini mentals at some point? he stopped because the lack of mini skewb supply. How could he be allowed?

How about Greg finishes the design and you can have it and "sell" it (getting royalties) from Shapeways?

I am asking before talking with Greg about it.

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I believe it would work best with black plastic.

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 Post subject: Re: mini mental block questions
PostPosted: Sun Oct 03, 2010 5:15 am 
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Doubleyou wrote:
Tony, I dont want to be a pain to nobody.


Ah, double negative. So you do want to be a pain to somebody... :lol:

The idea of Shapeways is a good idea, but could be quite awkward. I personally reckon it won't be that long until they're mass produced. I'm hoping it's going to be one of the final puzzles of Meffert's puzzle a month thing.

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 Post subject: Re: mini mental block questions
PostPosted: Sun Oct 03, 2010 5:49 am 
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Doubleyou wrote:
Tony, I dont want to be a pain to nobody, but were you (I bet you are) aware that Jin H Kim was selling mini mentals at some point? he stopped because the lack of mini skewb supply. How could he be allowed?


I have never given anyone permission. Someone else asked about making small Mental Blocks a few weeks ago and I said no. He would probably be doing it right now ahead of anyone in this thread if I had said yes.
Mental Blocks are still part of my ongoing business and will continue to be available every now and again on eBay. Remember there is still an infinite number of shape variations yet to be made plus you are free to copy any existing design for personal use.

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 Post subject: Re: mini mental block questions
PostPosted: Sun Oct 03, 2010 5:57 am 
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I see! :) Infinite you say? well you covered almost all of them :D
Anyway, I will see what I can with my keychain creative ball then, thanks!

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I believe it would work best with black plastic.

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 Post subject: Re: mini mental block questions
PostPosted: Sun Oct 03, 2010 1:46 pm 
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Not trying to be a pain either, but you made the first mini 3x3 barrel and micro 3x3, does that mean were just not allowed to sell those? it doesn't make sens to protect all your mods, especially when they are basic.

- Greg : :)

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 Post subject: Re: mini mental block questions
PostPosted: Sun Oct 03, 2010 1:50 pm 
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Greg, his website explains what you can and can't make for selling. Take a look at the lists.

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 Post subject: Re: mini mental block questions
PostPosted: Sun Oct 03, 2010 2:55 pm 
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RubixFreakGreg wrote:
Not trying to be a pain either, but you made the first mini 3x3 barrel and micro 3x3, does that mean were just not allowed to sell those? it doesn't make sens to protect all your mods, especially when they are basic.

- Greg : :)

List of mods that can be copied and sold is here.

Alex

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 Post subject: Re: mini mental block questions
PostPosted: Sun Oct 03, 2010 10:07 pm 
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Another link for Tony Fisher's policy.

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