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Laser parameters


#1

attn. all laser owners, As a new owner of a laser, I was wondering if
any of you would be willing to post your parameters and uses on the
internet. I am getting the knack of my machine, but I would like to
compare and possibly try something new that I am not trying. Basic
parameters would be fine…(ie, gold porosity, chain repair, hollow
chain repair (this has been a tough one for me, but I think that’s
because it’s just hard) sterling (I know alot of you don’t even do
this) oh, and white gold (since it reacts differently than yellow) I
would appreciate any feedback, and I would be willing to put my
parameters up, but I don’t think that it would be very helpful to
anyone (since I’ve only had my laser for a week and a half) looking
forward to reading the posts and thanks!!!
-julia


#2

Julia,I think a good rule of thumb is to start low and work up. For
platinum sizing for instance, we usually first go over the seam as
follows. 200 volts, 3 milliseconds, .8mm beam, this will usually get
you pretty deep into the seam and create a bit of a trough, if not
you may bump up to 225 volts or 3.5 milliseconds. After you have gone
completely around the seam you lay your 30 gauge platinum wire into
the trough and increase the beam to 1mm diameter, proceed to weld all
the way around. After that if you want to smooth it out up the beam
to 1.2mm and smooth away. As far a chain repair, we usually still do
that with a torch, I think that some things are just quicker that
way. Its a bit of a dilemma which approach to take. Typically we
prefer to use the laser for things that are really tricky with the
torch. Like in the chain or bracelet area, we might use it to repair
a torn tube on a hinge rather than disassembling it and soldering it.
In that case we would start at maybe 180 V, 2 MS, and .8 diameter
beam, this would probably do little or nothing. We would increase the
voltage and duration until we got some action. As for white gold, we
seem to get quite a bit of carbon surrounding the impact. Our rule of
thumb is to back off the voltage and duration as much as possible
until your impact is as clean as possible. Same thing for yellow
gold, the cleaner it is the better you result. Mark in WI