4
4
13
11
12
12
15 x 11 mm
B x 6
13
B
B
B
B
B
B
B
180°
Attach board 4 to board 11, 13 and 12,
add cam lock(B) into board 11, 12, 13
and turn clockwise to tighten as shown.
H x 12
14
H
H
H
H
H
H
H
H
H
H
H
H
11
12
H
180°
Rotate layer pin(H) into
board 11 and 12 as shown.
