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MACHI NED C CHAS E MODUL E ADJUS TMENTS AN D SETTING S Chapter Issue 1 Nov 05 Technical Reference Manual 14.5 S tencil Frame Adaptor The stenci l frame adap tor can acco mmodate scree ns within the foll owing limit s : S…

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MACHINED C CHASE MODULE
ADJUSTMENTS AND SETTINGS
14.4 Technical Reference Manual Chapter Issue 1 Nov 05
ADJUSTMENTS AND SETTINGS
Image Scales The machined C chase has two image scales as follows:
The figure below shows the measurement for both centre and front justified
stencils, when the stencil is 29 inches square.
A mechanical stop can be used instead of the front justified image scale on front
justified 29 inches square stencils. Wind out the mechanical stop when using
larger stencils or when using the stencil frame adaptor. Smaller stencils, both
front and centre justified, use the stencil frame adaptor.
Centre Justified Image Scale
Front Justified Image Scale
FRONT JUSTIFIED IMAGE - DISTANCE FROM FRONT STENCIL TO FRONT IMAGE
45
’’
411
5
mm
50
100
150
200
250
300
0
0”
1”
2”
3”
4”
5” 6”
7” 8”
9”
10”
11” 12”
13”
29’’ - 737mm - CENTRE JUSTIFIED IMAGE - BOARD WIDTH
m
m
5
0
2
’’
100
200
300
400
500
3” 5” 7” 9” 11” 13” 15” 17” 19”
4” 6” 8”
10” 12” 14” 16” 18” 20”
Front Justified
Board Width
Centre Justified
NOTE
Front of stencil to front of image is measured from the front
face of the screen frame to the front edge of the image.
Front of Stencil
to
Front of Image
MACHINED C CHASE MODULE
ADJUSTMENTS AND SETTINGS
Chapter Issue 1 Nov 05 Technical Reference Manual 14.5
Stencil Frame
Adaptor
The stencil frame adaptor can accommodate screens within the following limits:
Stencil Frame
Adaptor Assembly
To assemble the stencil frame adaptor and position the screen in the adaptor
proceed as follows:
1. Lay the stencil frame adaptor on a flat surface.
2. Place the stencil into the centre of the stencil frame adaptor. Ensure the
stencil is supported by the four stencil supports.
3. Secure the stencil using the four stencil securing screws. Ensure that the
frame is square in the adaptor and that the securing screws are not too tight,
causing the stencil to distort.
To position the stencil frame adaptor and screen correctly within the machined
C chase, proceed as follows:
1. Measure the distance from the front edge to the front of the image.
2. Place the stencil frame adaptor and screen within the machined C chase.
3. Using the measurement taken in Step 1, align the front edge to the corre-
sponding mark on the front justified image scale.
Left/Right Front/Back Thickness
Maximum 660mm 6100mm 36mm
Minimum 300mm 250mm 15mm
Adjustable Rail
(in 2 positions)
Plan View on Stencil Frame Adaptor
Stencil Securing
Bolts
(in 4 positions)
Scale
Stencil Support
(in 4 positions)
Front of Image
to
Front Edge
MACHINED C CHASE MODULE
CALIBRATIONS
14.6 Technical Reference Manual Chapter Issue 1 Nov 05
CALIBRATIONS
Chase to Table
Level
NOTE
This procedure requires the use of a DEK Test Plate, DEK part number 113693.
If a DEK Test Plate is required, contact DEK Customer Support before com-
mencing.
The chase to table level is checked by measuring down to 5 points on the rising
table surface from the DEK Test Plate which simulates a screen fitted in the
chase.
A datum reading is taken from the centre hole E, the range of readings must not
exceed 0.15mm of the datum.
Figure 14-1 Chase to Table Level Setting
Figure 14-2 Test Plate Recordings
Depth Micrometer
Rising Table
View on Front of Machine
Test Plate
Machined C Chase
A
B
CD
E
A .....................mm
B .....................mm
C .....................mm
D .....................mm
E .....................mm