I will put my 2 cents worth in as follows.
The Electromelt. It looks incredibly convenient and quick,
but in actual use, do you wind up with firescale? It concerns me
that > there is no flame covering the melt, even though the crucible
I used to use an electromelt (the digital Model) and I switched to a
large Victor oxy-propane torch .The torch successfully covers the
melt and the ceramic crucibles cost $ 8 and last years doing 75
melts /week. The torch will melt 500 grams or more in approx. 3
minutes. The electromelt will take 20 minutes for the first melt and
the crucibles will cost more than $20. and will have to be replaced
quite often .The electromelt will need various parts replaced as time
goes on… the torch needs nothing. As the graphite crucible wears
out… where do you think the disapearing graphite is going???
Accuracy…the digital one is more accurate than the non-digital unit
. The electromelt will do its job … eventualy
A vacuum wax injector. Is this only for the really big guys?
It looks like a good investment. It would simplify mold cutting (no
vents). It also looks as though you would shoot perfect waxes
every time. But do the molds wear out faster? And is the mold
clamp (which costs almost as much as the injector) really a
there are good vacuum wax injectors and there are some that are not so
good. The yasui is one of the best and their mold clamp is worth it if
you have the production figures that would warant the expense.Many
people do not know how to use these machines properly as it takes time
to learn how to make them work to your advantage.Next time you are at
a show, bring a mold on an item that you have a really hard time
getting to work… they will have to fool around with the settings a
bit, but it will fill the mold correctly … with practice. You will
still have to cut some vents… not as many…and it will not shorten
the life of your mold.
And last, these Neutec casting machines. I'm thinking of the
smallest one. Quick, no firescale. It looks so simple to operate,
I feel I must be missing something. Is the drawback that I'll be
buying Neutec's consumables for the rest of time?
Again, the cost of crucibles ( probably $ 60 + /each plus other things
that wear out) would steer me clear of these machines as a small shop.
I have had many expensive machines in various companies that i have
designed and built for others and the high tech gear is good for
employees who know what they are doing… but even in this case,
mistakes are made … and get quite costly in materials and machine
parts. This is my Dollars worth !
http://www.racecarjewelry.com Visit the workshop. Daniel Grandi