Braille cube

by NoDead, published

Braille cube by NoDead Apr 26, 2016
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Design Tools

Autodesk AutoCAD 2016


Braille cube by NoDead is licensed under the Creative Commons - Attribution license.

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This is a prototype of ongoing Braille educational toys development.
It's simply a cube with letters. Design allows to print six identical cube sides and pins for it. Next, pins are used to form Braille font letter, after that cube can be assembled and glued. Or, without glue it can be used as puzzle.

Use SIDE_01_07_16_release.stl if you experience issues with printing quality - this one has 0.25mm error included.
If your printer doesn't have such problems - use SIDE_07_07_16_release.stl instead

1.07.2016 Reviewed design in order to minimize time and plastic usage.
7.07.2016 Added file suitable for hi-quality printing.

More info on Braille educational materials on our team website: http://braille-device.com/en/

You may write me if you want to get additional support or want to get source models.


Assembly manual

To make full cube first print six sides and six set of pins. You can print less pin sets, but make sure you'll have enough to make characters. Below I add English Braille alphabet, that you can use as reference. Side has specific mark - filled corners, so the blind person know, how to read it properly.

Ukrainian Braille readers usually expect this mark to be below letter. Ensure that you assemble cubes in convenient way for blind persons in your region.

*Source: http://fontmeme.com/images/Braille-Alphabet-550x466.png*

Step 1

When printing is finished, carefully cut pins. I recommend using side cutters, but knife is fine too. You will get 6 round dots and 6 flat caps.

Each pin has square base, thin connections should be removed

Left - flat cap, right - round dot.

Pins after cutting

Step 2

Now form a letter by inserting pins into side. It is supposed to use reasonable amount of violence while putting them, so glue is optional. Holes in the side are pretty tight, you may need to grind pins. Make 6 sides for each cube you want to make.

Here's the front side of letter

Reverse side.

Six sides with pins. Letters, from top left: E, G, B, D, A, W.

Step 3

Now, time to assemble sides to get cube. Since all sides are identical, it's hard to assemble cube in wrong way. Connections between sides are also tight, so you may grind these too. Usually, no glue required.

Here's the way you assemble sides.

And final cube. Notice leftover pins - one set allows to make any letter, so there always be some leftovers.

It's ready! You're awesome!

Typically it's enough to make 16 cubes for making nearly every word in Ukrainian language. Since English has shorter average word length, I assume 10 cubes will be enough.

Depending on language cubes will have different letters on them. But, I can't advise you some ready-made solution on how to choose letters. Simplest way - go to nearest toy shop and buy some letter cubes for sighted, to recreate those for the blind.

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