STEP 12
20
14
×4
×2
15
×4
12.1 Insert (20) into (P) & (Q) as illustrated.
12.2 Attach (P) & (Q) to (O) with (14) as illustrated.
12.3 Insert (S) into (P), (Q) & (O) as illustrated.
12.4 Attach (R) to (P) & (Q) with (15) as illustrated.
20
P
Q
14
15
R
P
S
P
Q
Q
O
20
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