Accent Raster Braille Manual de usuario

Raster Method of Braille

Getting Started Guide

2322 chestnut ave west – minneapolis MN 55405 – phone 612-377-9156 – fax 612-377-6747 – www.accentsignage.com

Raster Pen

Congratulations on your purchase of the

Raster™ Method of Braille. Raster™ Braille

is the fastest, easiest way to create fully

compliant Braille signage.

To use the Raster™ Method you need a rotary

engraving machine and software capable of a

single-point drill function. You should also

use Braille translation software to ensure that

your Braille is accurate Grade 2.

When properly produced, Raster™ Braille is

durable, impervious to environmental

conditions, easy for Braille readers to use, and

fully compliant with all regulations.

We strongly recommend that you read all

the instructions in this booklet before you

begin.

Raster Braille cutter

(red label)

-or-

Collet drill assembly

(black label)

Raster Method of Braille

What's Included

The Raster™ Method consists of three main

components: the cutter, used to drill holes in

the sign; the Rasters™ themselves, precision-

machined spheres of acrylic, stainless steel, or

brass, and the Raster™ Pen, a simple-to-use

mechanical device for inserting the Rasters™

into the sign.

How It Works

It's simple: Translate text to Braille, drill the

corresponding holes, and insert Rasters™.

The top portion of each spherical Raster™

stands above the surrounding surface, creating

a perfect dome-shaped Braille dot.

The substrate material you choose will

determine the installation method you use.

For most engraving plastic, wood, and other

soft materials, use the friction-fit method. For

metals, stone, and harder plastics like

phenolic, use the adhesive-assist method. TM

Raster Pen

Jar of Rasters

Grade 2

Braille

If you just type in

text using a Braille

font, you are

creating Grade 1

Braille, a direct

letter-for-letter

translation. Grade

2 Braille, on the

other hand, is

condensed, with

over 200

contractions where

a single character

can stand for a

group of letters or

even a whole

word. Grade 2

Braille is required

by the ADA

Accessibility

Guidelines.

Page 1

Cutter Setup

1. Install the cutter in the spindle. Use the red-

label Raster™ Braille cutter for plastic and

wood, and the black-label collet and drill bit

assembly for metal, stone, or solid-surface

materials.

2. Turn the spindle micrometer all the way up,

then down to the first “0.” From this setting,

turn the micrometer 0.075” down (exactly

three turns), stopping at “0.”

3. Loosen the setscrew in the cutter's brass

knob and pull the cutter up inside the nose.

Hold a flat piece of plastic flush against the

nose of the spindle, and lower the cutter until

it touches the piece of plastic. Re-tighten the

setscrew while holding the plastic in place.

Don't over-tighten the setscrew! It only needs

to be “snug.”

4. The nominal depth setting for plastic and

acrylic substrates is 0.042”. Turn the spindle

micrometer up one full turn, plus 17 tick

marks.

5. For metal substrates, or any time the

adhesive-assist method is used, the depth

should be 0.002-0.003” deeper to allow for

the thickness of the adhesive.

Note: Set all you cutters to the same zero

point, so the micrometer settings are the same

for all of them.

Page 2

Raster Method of Braille

5020

Up until it stops

Down to “0”

Down three full turns to “0”

1 full turn = 0.025”

5020

Past the first "0" and up to "17"

Tip

Raster Braille

cutters are made

from solid carbide

for precision and

long life. Solid

carbide cutters are

heavy and one-

sided, so balance

is important. If

your cutter seems

to be making the

wrong size holes,

see Page 7 for

instructions on

how to find a

cutter's "sweet

spot."

...and re-tighten the setscrew

while holding it in place.

Loosen the setscrew,

hold the plastic against

the bottom of the nose...

Page 3

Raster Method of Braille

Press down to

insert Rasters

Raster Pen

The Raster™ Pen is the tool used to place the

Rasters™ in the holes. The Pen is a simple

device; it has only one moving part. The

spring-loaded tip holds one Raster™ at a time

below a plunger. As you press down, the

plunger presses the Raster™ into the hole.

1. Remove the rubber cap and fill the Pen's

barrel with Rasters™ using a small funnel. Fill

the barrel as full as possible, but be careful

not to spill any Rasters™. Replace the cap.

2. Shake the Pen and click the mechanism a

couple times by hand to make sure the

Rasters™ are dropping into the tip.

3. Hold the Pen vertically over the Braille

holes with the tip's flat side facing you. Align

the tip with the hole and press down. You

should feel the Raster™ "pop" into place.

Don't use any more force than necessary;

excess force can crack the Rasters™, damage

the sign, or cause a jam in the Pen's

mechanism.

NOTE: Proper grip and hand position is very

important when using the Raster™ Pen.

Don't try to operate the Pen using only your

fingertips. Experiment until you find a

comfortable grip, but remember to keep the

Pen vertical.

We recommend that you practice with the

Raster™ Pen before using it on a live job. Use

the included test piece, and make a couple

practice pieces of your own. Once you get

used to the feel, you should be able to use the

Raster™ Pen quickly and easily.

Storage Tip

Save an empty

Raster jar to use

as a stand for the

Raster Pen. The

jar will keep the

Pen upright, which

keeps the

mechanism full of

Rasters , so it's

always "primed"

and ready to use.

The jar also keeps

Raster Pen from

rolling off the

edge of a table.

Cap

Barrel

(fill with

Rasters )

Grip

Tip

Plunger

(inside)

Hold Pen VERTICAL

when using!

Friction-Fit Method

Use this method when installing Rasters™ in

plastic or acrylic substrates. The Rasters™ are

held in place by the friction fit between the

Raster™ (which is 0.0625” in diameter) and

the hole (which is 0.060”). This method is not

recommended for use with ABS plastics. For

ABS, use the adhesive-assist method.

1. Set up the red-labeled Raster™ Braille

cutter in your machine.

2. Use your engraving software to create the

Braille message and run the machine. Make

sure your software uses a single-point drilling

function to drill the holes. Use the same speed

settings you use when engraving plastic. Drill

to a depth of 0.042".

3. Move the sign to a clean area and make sure

the holes are free of debris. If you are using

clear Rasters , any leftover plastic chips in

the hole will be visible through and magnified

by the Raster , so keep your work area clean.

4. Use the Raster™ Pen to insert Rasters™

into the holes. The Rasters™ should "pop"

into place without much force. If too much

force is needed, or if the Rasters™ won't stay

in the holes, drill the holes a little deeper and

try again.

5. Check the height of the installed Rasters™

with calipers. Measure the thickness of the

material next to the Braille, then measure the

thickness including the Braille, then subtract.

The height should be 0.025" to 0.031" (0.6-0.8

mm). If the Rasters™ sit too low, try drilling

the holes a little shallower.

™

Working with

Acrylic

Here are a couple

tips to make

working with

acrylic a little

easier:

1. Slow down the

RPM of your

spindle. Acrylic

has a low melting

point and the

cutter can get hot

enough to melt

the edges of the

holes if the RPM is

too high.

2. Don't use

alcohol or

petroleum-based

cleaners on an

acrylic sign. These

products will

attack the acrylic

and cause tiny

cracks to appear

around the Braille

holes. Use soap

and water or a

mild detergent.

Page 4

Raster Method of Braille

Drill holes

in substrate

Press Raster

into place

Overall height

– material thickness

= Raster height

Use Raster Braille cutter

(red label)

Page 5

Raster Method of Braille

Adhesive-Assist Method

Use this method with metal substrates or

other materials that do not possess a

“memory,” such as solid-surface materials or

phenolic. It is also recommended for exterior

applications or materials that are to be plated

or anodized.

This method requires the collet assembly and

a carbide drill bit (black label), low-tack tape,

and double-sided adhesive tape. For best

results, use brass or stainless steel Rasters™

with the adhesive-assist method.

1. Apply a piece of low-tack tape to the sign

where the Braille message will be.

2. Set up and drill the holes for the Braille.

Drill directly through the tape to a depth of

about 0.045".

NOTE: Slow down the Z speed of your

engraver when working with metal. Your drill

bits will last longer drill cleaner holes.

3. Apply a piece of adhesive tape over the

holes. Before removing the tape's backing,

lightly “burnish” it down with your fingernail.

Remove the backing to expose the adhesive.

4. Using the Raster™ Pen, insert the

Rasters™ through the adhesive. Don't use too

much force; press only hard enough to seat

the Raster™ firmly in the sign.

5. Once all the Rasters™ are installed, slowly

peel off the low-tack tape. The excess

adhesive should come with it, requiring no

further clean-up. Peel the tape off carefully,

and avoid pulling it at a sharp angle.

6. Measure the height of the Rasters™ as

described on the previous page and adjust the

hole depth as needed.

Working with

Stainless Steel

Stainless steel is a

difficult material to

work with. It

requires precision

and patience. Drill

at very low RPM

and very slow

speed. Work

gradually down to

the proper depth;

don't try to do it all

at once. Drill

down a couple

thousandths, back

off, and drill

again, until you

reach the correct

depth.

We recommend

that you get

comfortable

working with

aluminum, brass,

and other softer

metals before

tackling stainless

steel.

Apply low-tack tape

Drill holes

THROUGH the

low-tack tape

Apply adhesive tape

Peel off low-tack tape

and excess adhesive

together

Insert Rasters

through tape

Use collet assembly &

drill bit (black label)

Page 6

Raster Method of Braille

Working with Other Materials

Plastic and metal are not the only choices for sign substrates using the

Raster

Also bear in mind that any time you use clear Rasters

Wood: Most woods can use the friction-fit Raster

™ method. We have experimented extensively with different materials.

Use the information here as a starting point, but always test an unknown

material before using it for a job.

™, the material

underneath will be visible through the Braille dots. If the material under the

surface is a different color, you may want to consider using one of the

opaque colors of Rasters™.

™ method, but avoid

softer woods. Any wood softer than pine isn't likely to be dense or strong

enough to support the Rasters™. Plywood and manufactured wood products

like MDF will work well.

High-pressure laminates: Laminated materials such as Formica® generally

shoud use the adhesive-assist method. In some cases, a hybrid of the two

methods will work best; drill the holes using the collet assembly, but insert

the Rasters™ dry (no adhesive).

Phenolic or fiber-reinforced plastic: Use the adhesive-assist method with

these materials. Be aware that these materials are abrasive and will wear out

tools faster than other plastics.

Expanded PVC plastic: Lightweight sign materials like Sintra® are not

strong or dense enough to support Rasters™ and are not recommended.

Solid-surface materials: Materials such as Corian® are essentially dense

hard plastic and will work best with the collet assembly. Like laminated

materials, adhesive sometimes isn't necessary with these materials.

Hard stone (marble/granite): It is difficult to work with these materials

without the proper tools. You can use the carbide drill bit, but it will wear out

quickly. If you have access to proper stoneworking tools, and can drill 1/16"

holes to a precise depth, you can insert Rasters™ using adhesive-assist.

Soft stone (sandstone, etc): Softer stone is easier to drill into, but use

caution when inserting the Rasters™. Use adhesive-assist, and test the

adhesive to make sure it sticks to the stone.

Glass: It is possible to drill holes for Rasters™ into glass, but it is not

practical. The process is very difficult and time-consuming. Working with

glass requires special tools, training, and equipment. We don't recommend

you try drilling into glass unless you have experience. Substitute clear acrylic

or polycarbonate for real glass.

Cutter Balance: "Dialing in" your cutter

Raster™ Braille cutters are precision-

machined to very close tolerances and are

tested for accuracy before leaving the factory.

But sometimes a little fine-tuning is needed to

make a cutter work as it should.

Balance is very important to a cutter's

performance. If the balance is off, a cutter

can drill holes that are much too large. You

can change the balance of a cutter by

changing its orientation in the spindle.

Loosen the setscrew and turn the cutter 180

degrees, then retighten the screw. This will

change the orientation of the cutter's "flat"

side in relation to the brass knob and the

spindle itself. Now try drilling again and check

the holes. If it still isn't right, rotate it 90

degrees and try again.

Be careful not to lose track of your "0" point

on the micrometer during this procedure.

There is no one correct position, so try a

few different positions until the cutter drills

the proper size holes. You can tell by the

sound it makes: as the cutter gets closer to

being in balance, it runs quieter.

You can also try adjusting the spindle speed,

on materials where the speed isn't critical

(most engraving plastics fall into this

category). A particular cutter may run

smoother and work better at a lower or higher

speed than normal.

Page 7

Raster Method of Braille

"flat" side

of cutter tip

Location of

setscrew

Top View

of Cutter

Rotate the cutter

within the knob

to change the

orientation

Brass

knob

Raster Pen maintenance

In normal use the Raster™ Pen is maintenance-free. The Pen's mechanism is

lubricated and sealed at the factory and does not require any attention.

Occasionally, debris from signs or gummy residue from the adhesive may

find its way inside the Pen's tip. If this happens, empty the Pen and blow out

the passages with compressed air. You can also feed a few brass or stainless-

steel Rasters™ through the Pen to dislodge any debris. Don't use any liquids

to try to clean out the Raster™ Pen, don't immerse it in any liquid, and don't

try to disassemble it.

Disassembling the Raster™ Pen will void your warranty.

Page 8

Raster Method of Braille

Care and Storage of Rasters

Store unused Rasters™ in their original glass jar with the lid tightly closed to

keep them clean. Dust, fuzz, plastic chips, oil, and other debris can jam up

the Raster™ Pen's mechanism. Use a funnel when filling the Raster™ Pen to

avoid contaminating the Rasters™ with oil from your hands.

Don't use static-reducing agents with acrylic Rasters™; some of these

products can cause discoloration of the Rasters™.

The Raster™ Method of Braille consists of a matched set of tools, supplies,

and procedures that are designed to work together to produce domed Braille.

The key words are matched set. Raster™ Braille cutters, Rasters™, and

insertion tools (Raster™ Pen and Auto-Raster™) have all been engineered

and manufactured to precise tolerances, with the expectation that they will be

used together.

While there are other possible sources for some of these materials, they are

not designed or intended for use with the Raster™ Method, and cannot be

expected to perform as well as official certified Raster™ components. We

control the design and manufacture of Raster™ Braille tools and supplies

very carefully, and we cannot guarantee compatibility of any third-party

supplies with the Raster™ system. Remember, just because something looks

the same does not mean that it works the same. Some third-party supplies

may be cheaper, but you get what you pay for.

Accept No Substitutes

If you have difficulty drilling holes or inserting Rasters™:

1. Re-read the instructions, paying special attention to any specific notes for

specific types of material. Double-check all your settings, both on the

machine and in the engraving software.

2. If the Rasters™ are difficult to insert, or do not stay in the holes, the fault

usually lies with the dimensions of the holes. Try drilling the holes deeper; it

that doesn't work, see page 6 for information on balancing the cutter.

3. Make sure you are using the proper technique with the Raster Pen. Hold

the Pen vertical and push straight down. If you hold it at an angle it will

not work.

3. Raster™ Braille cutters and carbide drill bits are designed to last a long

time, but they don't last forever. If you have been using a cutter for a long

time, especially on hard or abrasive substrates, it may be worn out.

If your Raster™ Pen stops dispensing Rasters™:

1. Acrylic Rasters™ are prone to static cling in dry or cold climates. To break

up the static charge, shake the Pen. If you keep the barrel full or nearly full,

static will be less of a problem. Don't use dryer sheets or anti-static spray on

Rasters™ because these products can make the Rasters™ turn cloudy.

3. Check the tip of the Raster™ Pen to make sure no debris is obstructing

the passage. Any foreign matter inside the barrel will be carried along the

passage and may cause a jam. If you accidentally break a Raster™ while

inserting it, shards of acrylic may lodge inside the Pen, keeping Rasters™

from dropping into the tip or causing them to all run out at once. Empty the

barrel and blow out the Pen's internal passages with compressed air. You can

also try feeding a few metal Rasters™ through the Pen; the heavier metal

Rasters™ should dislodge anything blocking the passage.

3. If you use the adhesive-assist method, check the tip to make sure no

adhesive has built up on or inside the Pen's tip. Clear away the adhesive and

the Rasters™ should start dispensing again.

4. Push on the tip with your finger. Make sure the tip moves smoothly and

returns to the "down" position on its own. Examine the tip and the plunger

inside for wear or damage. If there is mechanical damage, you may need to

return the Raster™ Pen for repair.

If none of these answers solves your problem, please call Angie Francis or

Shevy Parasivam at (800) 215-9437 or (612) 377-9156 for further assistance.

™

Troubleshooting

Page 9

Raster Method of Braille

Otros manuales de Accesorios de Accent

Accent

Accent 800 Manual de usuario

Manuales populares de Accesorios de otras marcas

Hillco

Hillco 2810 Manual de usuario

Siemens

Siemens QSA2700D Manual del operador

Contours

Contours ZY024 Manual de usuario

Saivod

Saivod VS621 Manual de usuario

Virtuox

Virtuox VirtuCLEAN 2.0 Manual de usuario

SCE

SCE ENVIRO-THERM SCE-TE170B24VSS Manual de usuario

Z-Wave

Z-Wave HSD-200Z Manual de usuario

turck

turck FMX-IM-2UPLI63FX Manual de usuario

Decagon Devices

Decagon Devices 10HS Manual de usuario

UPPAbaby

UPPAbaby Cup Holder Manual de usuario

Elko

Elko SmartSensor Leakage Wireless Manual de usuario

Grizzly

Grizzly H8371 Manual de usuario

Panasonic

Panasonic HG-T Series Manual de usuario

IFM Electronic

IFM Electronic Efector 250 Series Guía de referencia

DigiDesign

DigiDesign 888/24 I/O Manual de usuario

PROZIS

PROZIS QUAY Manual de usuario

patagonia

patagonia PSI Vest Manual de usuario

SFC Energy

SFC Energy EFOY GO! Manual de usuario