background image

5.4

  

Load

 

bitmap

 

file

 

(.fpf)

 

generated

 

in

 

program

 

Gerb2bmp

 

into

 

program

 

Run_photo_USB

 

by

 

command

 

File

Open

.

 

Selected

 

file

 

is

 

shown

 

in

 

preview

 

window,

 

displays

 

the

 

overall

 

image

 

dimension

 

(note

 

that

 

displayed

 

image

 

dimension

 

is

 

10

 

mm

 

larger

 

on

 

all

 

sides)

 

and

 

any

 

user

 

note

 

created

 

when

 

bitmap

 

file

 

was

 

created

 

in

 

Gerb2Bitmap

 

program.

 

It

 

is

 

also

 

possible

 

to

 

load

 

hi

res

 

BMP

 

file

 

by

 

selecting

 

this

 

BMP

 

type

 

of

 

file

 

instead

 

of

 

Photoplotter

 

Bitmap

 

(FPF),

 

but

 

without

 

preview,

 

user

 

notes

 

and

 

overall

 

image

 

dimensions

 

 

do

 

not

 

forget

 

to

 

specify

 

BMP

 

resolution

 

in

 

Input

 

resolution

 

field.

  

Loaded

 

file

 

will

 

be

 

displayed,

 

unless

 

the

 

file

 

is

 

bigger

 

than

 

14

 

MB.

 

Note,

 

that

 

image

 

axis

 

X

 

will

 

become

 

axis

 

Y

 

on

 

the

 

film

 

on

 

photoplotter

 

drum,

 

while

 

image

 

axis

 

Y

 

will

 

be

 

the

 

horizontal

 

axis

 

of

 

the

 

film

 

in

 

photoplotter.

 

Click

 

on

 

button

 

Run

 

photoplotter

 

and

 

specify

 

desired

 

resolution

 

of

 

the

 

plot.

 

If

 

needed,

 

you

 

can

 

specify

 

Negative

 

or/and

 

Mirrored

 

image

 

to

 

be

 

plotted.

 

Click

 

on

 

Plot

 

button

 

starts

 

plotting.

  

 

When

 

photoplotter

 

starts

 

to

 

run,

 

it

 

needs

 

some

 

time

 

to

 

speed

 

up

 

the

 

drum

 

rotation.

 

After

 

drum

 

reaches

 

his

 

working

 

revolution,

 

it

 

rotates

 

30

 

times

 

to

 

make

 

sure,

 

the

 

rotation

 

is

 

stabilized.

 

After

 

that

 

plotter

 

starts

 

to

 

plot

 

and

 

indicates

 

time

 

left

 

for

 

plotting.

  

The

 

front

 

panel

 

light

 

labelled

 

Laser

 

lights

 

to

 

indicate

 

plotting

 

in

 

progress.

 

When

 

plotting

 

is

 

finished

 

or

 

interrupted

 

(

STOP

 

button),

 

laser

 

head

 

will

 

return

 

to

 

the

 

initial

 

position

 

and

 

drum

 

will

 

stop.

 

Do

 

not

 

start

 

plotting

 

again,

 

unless

 

laser

 

head

 

has

 

returned

 

to

 

its

 

initial

 

position.

  

 
 

 

6.

 

How

 

to

 

make

 

test

 

films

 

 

Occasionally,

 

it

 

is

 

needed

 

to

 

make

 

test

 

films,

 

just

 

to

 

find

 

out

 

proper

 

working

 

conditions

 

like

 

light

 

intensity

 

or

 

plot

 

accuracy.

  

 

To

 

make

 

test

 

film

 

to

 

find

 

out

 

proper

 

light

 

intensity

 

 

Use

 

strip

 

of

 

film,

 

approx.

 

100

 

mm

 

wide

 

and

 

300

 

mm

 

long

 

and

 

tape

 

it

 

to

 

the

 

drum

 

(longer

 

side

 

over

 

drum).

  

 

Use

 

command

 

Tools

 

 

Plot

 

Light

 

Bar

,

 

where

 

you

 

set

 

parameters

 

like

 

initial

 

light

 

intensity,

 

automatic

 

light

 

intensity

 

increment

 

and

 

number

 

of

 

test

 

images.

 

Click

 

OK

 

and

 

plot

 

will

 

start.

 

As

 

a

 

result

 

there

 

will

 

be

 

a

 

number

 

of

 

small

 

images

 

automatically

 

generated

 

by

 

software

 

which

 

were

 

plotted

 

with

 

light

 

intensity

 

starting

 

from

 

the

 

initial

 

one

 

and

 

increasing

 

with

 

every

 

image.

 

Now

 

it

 

is

 

easy

 

to

 

compare

 

images

 

and

 

define

 

the

 

best

 

one,

 

where

 

black

 

area

 

is

 

completely

 

black,

 

but

 

very

 

thin

 

lines

 

are

 

still

 

clean

 

and

 

sharp,

 

without

 

grey

 

surroundings

 

(overexposed).

 

Make

 

one

 

more

 

test

 

if

 

necessary.

 

Enter

 

value

 

of

 

light

 

intensity

 

of

 

the

 

best

 

image

 

for

 

given

 

output

 

resolution

 

into

 

light

 

table

 

under

 

Light

.

  

 

To

 

make

 

test

 

film

 

to

 

check

 

plot

 

accuracy

:

  

 

Use

 

Setup

Generate

 

Test

 

Grid

 

Plot

 

feature.

 

This

 

will

 

generate

 

raster

 

plot

 

in

 

shape

 

of

 

10

 

mm

 

line

 

grid

 

of

 

specified

 

dimensions

 

(drum

 

circumference

 

and

 

axis

 

direction)

 

and

 

defined

 

line

 

thickness.

 

Specify,

 

if

 

you

 

want

 

to

 

include

 

parameters

 

from

 

Setup

 

Table

 

(they

 

will

 

be

 

plotted

 

in

 

small

 

size

 

at

 

the

 

bottom

 

of

 

the

 

film).

 

Plot

 

two

 

test

 

films

 

 

they

 

should

 

be

 

same

 

when

 

you

 

mount

 

them

 

together.

 

Rotate

 

one

 

of

 

them

 

90

 

degrees,

 

flip

 

one

 

of

 

them

 

horizontally

 

or

 

vertically,

 

they

 

should

 

be

 

same.

  

 

What

 

to

 

do

 

if

 

plot

 

is

 

not

 

accurate:

  

Содержание FP?8000 XL

Страница 1: ...hotoplotter is driven by program Run_photo_USB which reads in hi resolution bitmap files FPF photoplotter proprietary file format and BMP From this reason if you work with Gerber or Postscript files these files must be converted into one of these bitmap files format first Gerber files are converted by program Gerb2bitmap which is a part of the photoplotter software while Postscript files are conve...

Страница 2: ...tioning on film glue unglue image location automatic positioning of associated images on different layers Photoplotter software is supplied on CD with installation program Requires Pentium computer with at least Windows 2000 and USB port 100 MB HD space minimum for software and output files The computer speed has influence on plotting time Plotting files may be quite large in range of tens of MB s...

Страница 3: ... software go to directory Install on installation CD supplied with the photoplotter and execute SETUP exe Software starts to install on connected computer 3 2 Power the photoplotter Connect supplied power supply unit with the photoplotter connector is located on the back side Switch power on left side of the photoplotter The green LED labelled Power will come on Red or yellow LED labelled Laser wi...

Страница 4: ...he left top corner of photo plotted area is then approximately 20 mm from the left edge of the drum on the horizontal line marked by white arrow Place film on the drum with its top edge approximately 20 mm behind the white mark on the drum hold it firm by hand and fix it to the drum by means of a masking tape along the top edge Rotate drum by one hand to be able to fix film s bottom edge but make ...

Страница 5: ...d common liquid cleaner Do not spray Drum surface under film must be kept clean and dry ATTENTION During photo plotting is film drum lighted by laser light that is harmful to human eye Do not open photoplotter lid during photo plotting nor during testing without film 4 PHOTOPLOTTER SOFTWARE 4 1 Brief Description Photoplotter software comes on one CD together with ViewMate program for viewing Gerbe...

Страница 6: ... associated drill It also has a built in converter of aperture files made in various CAD software Eagle Pads OrCad Protel P CAD etc The large grey area on the screen represents plotting area of the photoplotter The top left corner of grey field area has 0 0 plotting coordinates with increasing Y coordinate going vertically down and increasing X coordinate running horizontally to the right The coor...

Страница 7: ...ing Master Gerber and Associated Gerber makes sense only in case of several artworks like Top side routing Bottom side routing Silkscreen Soldermask etc from the same board will be photo plotted while one of them Master will be panelised the other ones Associated must be then be panelised too and be positioned exactly to the same location as the Master image If films are not panelised than every G...

Страница 8: ...tically fill all needed information in it The user can verify the source of aperture file by clicking on Guess Format the converter will report the name of the program where aperture file was created The conversion will start by clicking on Start or F4 Exit converter by using ESC keyboard button When converter closes confirm OK on a small dialog window The name of loaded aperture file will be disp...

Страница 9: ...ociated with this one on selected layer Use Job Preview or an icon to preview result of Gerber to bitmap conversion for selected layer It is possible to make holes openings in otherwise filled pads to make manual drilling easy specify Hole Size in Pads As some pads for example SMD do not have any holes specify D codes without holes for these pads Similarly to view created technological area define...

Страница 10: ...Use Job 500 dpi Bitmap to generate BMP file named Clip bmp for checking purpose you can display it in any bmp viewer if nothing more than Paint Brush in Windows will do that ...

Страница 11: ...ed with the Master file soldermask etc on selected layer film Job Import Apertures loads aperture file for selected layer film Job Exit ends the program EDIT Edit Insert Mark allows to insert a small Gerber image to the film see Preference Mark Edit Copy to Clipboard Edit Delete Board or an icon deletes selected board image s and associated Gerber and aperture file Edit Lock All Boards glues image...

Страница 12: ......

Страница 13: ...llows to convert selected aperture file PREFERENCE Preference Memory Setting allows to specify computer memory size used for calculations Recommended size RAM memory 20MB The more memory available the faster calculation of bitmap Preference Plotting Area Size allows operator to set max Size of displayed plotting area Preference Data Format allows operator to set format of loaded Gerber file Prefer...

Страница 14: ...Preference Tech Area allows to set parameters for so called robber strip copper strip around board outline used for board manufacturing purposes An example of Tech Area the robber strip ...

Страница 15: ...r F3 command allows to read in input file generated previously in Gerb2bitmap program FPF format or Windows BMP format see picture on the next page FPF file can be previewed before loading and its image size resolution and user notes created in Gerb2Bitmap is displayed Please note that image size is extended by 10mm on each side In case of BMP file its image cannot be viewed here Its resolution MU...

Страница 16: ...to program by OK button Loading may take some time depending on file size If loaded file size is smaller than 14 MB than its image is displayed otherwise a message File is too big to display but plotting will be OK is displayed ...

Страница 17: ...e look right but keep in mind that this image is here displayed only for your information When image is displayed use Tools Run photoplotter or button A new dialog box appears where it is possible to set plot output resolution reversed Negative and mirrored Mirror plotting Time needed for plotting is shown automatically Click on Plot will start the plotter The higher output resolution the longer p...

Страница 18: ...ting conditions at the user site temperature humidity film Angle Error represents a linear inaccuracy between the right angle plot and the real non right angle plot on a line 360 mm long along drum axis This is one half of vertical distance between corresponding horizontal lines of the two films measured 360 mm from the left 0 position while one of the films is flipped upside down Screw Error repr...

Страница 19: ...rum axis direction may be entered into setup table for related distance Plot size depends on values written in files Drum axis and Drum circumference The grid lines are plotted with thickness specified in field Line width If Include setup table is checked then setup table will be automatically included at the bottom of the plot If serial number of the photoplotter is written in field S N then this...

Страница 20: ...Continue as with any other plot file use Run photoplotter Tools Run Photoplotter or button ...

Страница 21: ...tensity automatically increases with every next image by value entered in filed Increment Number of images is set by value in field Number Click on button OK starts plot Light Allows to pre set values for intensity of laser light related to used film sensitivity and output resolution For films with higher light sensitivity the values are lower Values go also down for higher resolution regardless o...

Страница 22: ...sity of laser light Light if needed otherwise this value is pre set in dialog window under Light command Time needed for given file and set resolution is also indicated Plotting time Note that for the higher resolution the longer time is needed Click on Plot button to start photo plotting It takes a while for plotter drum to reach needed speed to rotate before it starts to plot The remaining plott...

Страница 23: ... layer s in Active Layer Corresponding images will be automatically placed in the same location on the film as the Master Gerber image When Master image is moved or panelised all related images are also moved or panelised If Master image is deleted all related images files are also deleted 5 2c Load aperture file s for associated Gerber images Make sure that aperture files are loaded on the same l...

Страница 24: ...Do not start plotting again unless laser head has returned to its initial position 6 How to make test films Occasionally it is needed to make test films just to find out proper working conditions like light intensity or plot accuracy To make test film to find out proper light intensity Use strip of film approx 100 mm wide and 300 mm long and tape it to the drum longer side over drum Use command To...

Страница 25: ...ference direction enter measured differences in Drum Linearity table for every particular grid where error appears d If there are errors only in certain areas along the drum axis screw direction enter measured differences in Screw Linearity table for every particular grid where error appears e If lines drawn horizontally in drum axis direction are not perpendicular to lines in vertical direction d...

Страница 26: ...MAIN SWITCH POWER 24V 2 5A DC DRUM MOTOR SCREW MOTOR LASER PANEL LED SCREW MICROSWITCH LASER LASER HEAD PHOTOPLOTTER 8000 DPI PCB TERMINALS CABLE BLOCK DIAGRAM FP8000 FP8000XL Photoplotter Insts 0611 ...

Страница 27: ... VIEW WITH LID OPEN Auto Manual Switch Power Laser Main Switch Mega Electronics Ltd Mega House Grip Industrial Estate Linton Cambridge United Kingdom CB21 4XN Telephone 44 0 1223 893900 Fax 44 0 1223 893894 Email sales megauk com web www megauk com ...

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