Tessellated I / H building tiles / bricks

[peterdow]

Hi.

I am still at the engineering design stage of a possible variation on Lego / Meccano building toy project but I have a technical drawing produced using my computer graphics skills to show you.

If like Meccano, the tiles or bricks are made of metal then either aluminium or steel are the obvious choices.

Tessellated I in Steel


View larger version of Tessellated I in Steel 1800 x 800

Representing a surface of "I"-shaped steel tiles or bricks. Produced using Paint.NET.

The "I" shape is of square proportions, the column of the I being one third of the width of the square and the top and the base one quarter of the height of the square.

The image has my own watermark added.

If like Lego, the tiles or bricks are made of plastic then maybe multicoloured bricks might be possible ...



if not then single colour bricks like Lego would be OK.

I am hopeful that maybe one day this kind of shaped tile or brick could prove useful in engineering where you need to build a strong, maybe temporary, wall, enclosure, barrier, box or other solid structure.

Perhaps the proving ground for my tessellated I / H tile / brick concept would could be first as a building toy?

There's nothing new about tessellations in engineering of course. Somebody even used I-shaped paving stones one time.




I still need to work on the design a bit more because I'd want the tiles or bricks to be able to be assembled together then disassembled when necessary without having to be cemented together like a brick wall



and without having to be glued onto a mounting surface like conventional tiles



So I am looking for a design that allows assembly and disassembly such as with Lego, Meccano or other manufactured products.



So still a bit of engineering design work to do and then I'll need to start with models and prototypes first and then see if anyone else might be interested in applying my idea whether as a building toy or for a real world engineering application.

[peterdow]

I made this model from some 1cm side square tubing and 8mm diameter round tubing I had handy but it looks not far off the sort of size of bricks ideal for a building toy.

3-Dimensional model video









Tessellated I or H bricks and tiles for stronger, lighter assembled structures (YouTube)

This video shows my model of the 3-dimensional shape of a simple structure composed of 6 bricks or tiles, each of which, when viewed from one-direction anyway, is a 2-dimensional "I"-shape (equally when rotated by 90 degrees "H"-shaped).

This model has been made from aluminium tubing and in order to distinguish one brick from another they have been coloured using marker pens - so there are two bricks coloured blue, two coloured green and two coloured red. This colouring was necessary for clarity because otherwise the permanent joints within bricks (which are only an artifact of the method to make a brick from square tubing) might be confused with the simple touching surface where two neighbouring bricks abut, abutting securely but without being in any way stuck by glue etc.

This 3-Dimensional model reveals a further design feature of the I or H brick and tile structures, which secures the bricks and tiles together in 2 further dimensions, some such feature being necessary because the 2-D I or H shape in of itself only secures the bricks together in 1 dimension.

This feature is revealed here to be nothing more complicated than dowels or fixing rods which run in the vertical direction of the Is (or the horizontal direction of the Hs) through shafts in the Is' bases and tops and which serve to lock the tops and bases of neighbouring Is together, preventing movement radially from the dowels.

These dowels may henceforth be referred to as "Mazurka Dowels" named after the username of a scientist in an internet science forum who first correctly anticipated this feature of my 3-D design and its function to hold the structure together in all 3-dimensions, in a reply post to my topic there describing in detail only the 2-D tessellation, suggesting somewhat vaguely that some such design element was required for a good 3-D design with a view to seeing who would suggest the solution I had thought of first.

As I explained in that topic I could hardly call those dowels the "Dow dowels" there being too many dows in that name and anyway, my name can be used to reference this particular shape of I or H tile and brick and structures composed of them, as per "Dow tile" "Dow brick" "Dow I-tile" "Dow H-brick" "Dow I-H-brick" "Dow I-H-brick structure" "Dow I-structure" etc.

[peterdow]

HI-BRICKS & DOWELS demonstration video by Peter Dow (YouTube)

Transcript of the video



Hi everybody and welcome to my "H" / "I" Bricks or HI-BRICKS & DOWELS demonstration video.

This is Peter Dow from Aberdeen, Scotland.

There are two components to a HI-BRICKS & DOWELS construction -

• the BRICKS, which you can either describe as "H"-shaped or "I"-shaped, depending on which way you turn them around
  
  
• and the DOWELS

The shape of the "H" or "I" bricks is designed so that they fit together to form a layer or a wall of bricks and importantly, the bricks, just by their very shape, immobilise each other from moving, in one dimension only.

Let's have a look at that.

Let's consider this green brick here as the fixed point.

We can see that it immobilises its neighbouring bricks in one dimension. They can't move with respect to the green brick in this dimension. So that's locked. Even though there is no bricks here or here, the very shape stops it moving in that dimension.

Now the shape doesn't stop the bricks moving with respect to each other in that direction, or in that direction but they are fixed in that one dimension.



Now if we want to make a rigid structure of bricks in all three dimensions but without using mortar or glue so that we can assemble and disassemble the structure whenever we like, what we need next are the DOWELS.

As you can see, the "I" or "H" bricks have shafts running through the corners so that you can run a dowel through the corners - two shafts, four holes per "I" or "H" brick.

And when you assemble the bricks you can slide the dowel in ... and this forms a structure which is rigid in all three dimensions, which is what we need to form structures.

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