Karl Fischer in Germany sell them, http://tinyurl.com/5sgq32 is this
what you want?
That tool is likely intended for thicker were than we use in lasers,
but might work even so. It also looks a lot like the sort of wire
holding/feeding tool that the electronics folks use for doing wire
wrap circuit boards. That’s a “breadboarding”/prototype assembly
method in which circuit componants are connected with tight coiled
wire connections on the componant leads, rather than solder, making
them easier to create quickly, and change as desired. The tools sold
for it have a coil on one end with the connecting wire, and a stem
similar to the Karl fisher tool, except it’s designed to feed the
wire while the tool is placed over a componant lead and rotated,
creating the coiled connection. I’d guess it would be easy to modify
that to just feed the wire ad desired.
My main thought for these in a laser is that their size might make
them awkward in the confines of the laser’s chamber.
And does anyone know where one could buy those simple plastic spools
that commercial laser wire is often packaged upon? I make all my own
laser wire, so I’m often just working with small loose coils. That
works, but some of the stiffer wires can get turned into rats nests
if one isn’t careful, so some of those plastic spools would be