The center line
A
B
12
b
L=W-[3/4"]20mm
A
-11-
3
4x40mm
12
1
12
4
3
12
a
d1
d2
d3
A
B
A=B
4
12
12
b1
1
1
c
12
W
B
ot
tom
L
The Bottom Guide Rail 12 must be
cut equally from both ends in order
to keep the center guide holes centered.
L
a
12
a1
12
L
a2
12
L
b2
L
