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You may be able to identify another inexpensive material for a backing pad that works even better. Ifyou do, I would like to hear about it so that I can pass that information along to other students.
Don't emboss the English text characters
The most difficult thing about manually embossing the image in Figure 1 is the task of embossing the English text labels in a form that is accessible toa blind student. Therefore, I don't intend for your assistant to emboss that text, unless she elects to do so using Braille as described below .
Key characters
The image in the file named 1.svg contains 19 strategically placed key characters consisting of the characters from A through S. (Other images in othermodules will have different numbers of key characters.) As mentioned earlier, the key characters are printed in a smaller oblique font to make them easilydistinguishable from the regular text. (They are also printed as a mirror image of the actual English character.)
Emboss the lines and Braille the key characters
Your assistant should emboss all of the lines in the image, and should replace the smaller, oblique key characters of "A" through "S" with corresponding Braille charactersusing a slate and stylus. This may be the point where you will need to help. If your assistant doesn't know Braille, have her place the Braille template over thecharacter and tell you what the character is so that you can emboss it yourself.
Alternatively, your assistant can find a visual chart showing Braille characters for the alphabet at Wikipedia. (See (External Link) .)
Make sure the orientation is correct
Each Braille character should be embossed in reversed orientation relative to that chart. For example, when you turn the paper overand touch it, you should recognize the Braille character for an "A" where the key value "A" appears (reversed) in English text on the printed mirror image.
In addition to the key characters, you or your assistant should emboss a Braille label of your own choosing on each image so that you can identify itlater.
You may need a flag
Some of the key characters, such as the letter "A", with a small number of dots may be difficult for you to locate on the embossed image. Therefore, youand your assistant may need to emboss some sort of a flag near the Braille character to alert you of its presence. One possibility would be to use thetracing wheel to emboss a small X next to the Braille key character. If the two of you come up with a flag that is both effective and easy to create, I wouldlike to hear about it so that I can pass the information along to other students.
Key-value pairs
Figure 3 contains the text values associated with each of the Braille key characters shown in Figure 1 .
| Figure 3 . Text values for Braille keys in file 1.svg. |
|---|
A: Beam supported by a diagonal cable
B: VC: H
D: M*gE: T
F: TyG: Tx
H: 30 degreesI: The large characters are 32 pt and these characters are 16 pt
J: Note: Vectors not drawn to scaleK: Wall supporting beam
L: Vertical support vector at wallM: Horizontal support vector at wall
N: BeamO: Weight vector for beam
P: Horizontal component of tension vectorQ: Tension vector
R: Vertical component of tension vectorS: Physical support cable |
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