Looking for EDM wire

Best of luck
note these items:
1) When using wire the area that is your tool is tiny,
which means all the work is done constantly in a small area
which means the tool gets 'beat up' quicker than if the work
was spread over a larger area ( the point of a punch wears
faster than the end you hammer ). The result is, higher wear,
maybe real high, and hard for an edm newbie to see as 'reasonable'.
so lower your expectations.
2) types of wire:
Copper was originally used, then brass. This is what worked, and has
many reasons.. easier to make, smoother, less springy, less stretchy.
Not many of these 'good' qualities affect your end cutting idea. But as
soon as you turn it into a slicer ( cross bow apparatus on head ), these
qualities begin to matter. Fancy wires have coatings with even weirder
properties. Molybdenum wires have been used for thier tensile(?)
strengths at teeny diameters ( smaller than tiny ).
3) typically in sink edm, tungsten wires were used. They produced a
round(er) hole without spinning. You will find short length of tungstem
(tungsten carbide) wires available from Saturn and Electrotools, etc
(nationwide edm supply houses). Fairly expensive for 4 or 6" of wire.
4) Ben's system is highly suited to thus type of work, more so than
commercial machines. Because it lets the process control the spark
( the frequency of discharges is process dependant, not on/off time
controlled) The same thing applies to the servo, the servo is simply
a reaction to the process. These 2 things are not always true in
commercial machines.
best of luck
TomP
tAG EDM wiseass