Aztec GEM II - Page 10

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Cungdiscmakeslileprogressincung
throughring(Connued)
Lockingscrewunwindsduringoperaon
Carbidecungdisc(Ref.A-Z224)
Ifcungdiscisworndowntoplasc
spacers,replacedisc.
Baeries have been loaded into baery
cassee incorrectly. Re-load baeries into
cassee in the correct order and make sure
the arrows on the baery cassee and the
GEM II unit are aligned.
F.A.Q’s
1. Howmanyringswillacungdisccut
 through?
2. Whyisitnecessarywhencungthrough
 hardmetalstomakeacuthalfway
 throughtheringononesideandthen
 allthewaythroughinaposiondirectly
 oppositetherstcut?
A carbide disc acng on a so metal, i.e.
Gold wedding ring approximately 4mm
wide by 1mm thick will cut through 10-15
rings.
A diamond disc acng on a hard metal, i.e.
steel 4mm wide by 1mm thick would be
capable of cung through approximately 6
rings allowing for the fact that a hard metal
requires cung in 2 separate locaons on
the ring.
N.B. The cung surface of the ring must be kept as cool as pos-
sible to preserve the diamond grit on the cung edge of the disc.
This is achieved by cung for 3 or 4 seconds, pausing for a second
and repeang the process.
Rings made of hard metals when cut
through tend to close up trapping the
cung disc. This is due to the high tensile
strength in the metal. Parally cung
through a ring signicantly reduces the ten-
sion in the ring so that when the ring is cut
through on the opposing side to the rst cut
the ring won’t collapse in on itself and trap
the cung disc.