Part 12818 is missing its bottom snap info:
(This should also work for unofficial part 79393.)
Code:
0 !LDCAD SNAP_CYL [gender=F] [caps=one] [secs=S 6 4] [pos=10 144 -50]
0 !LDCAD SNAP_CYL [gender=F] [caps=one] [secs=S 6 4] [pos=50 144 -10]
0 !LDCAD SNAP_CYL [gender=F] [caps=one] [secs=R 6 4] [pos=30 144 -50] [grid=1 2 0 20]
0 !LDCAD SNAP_CYL [gender=F] [caps=one] [secs=R 6 4] [pos=50 144 -30]
(This should also work for unofficial part 79393.)