
FINISHING OFF THE DIGIT
After mapping all the fibers to the optics grid,
securing them with UV resin, and trimming
them flush with the bottom of the grid, prepare
a couple of ounces of casting resin and mix it
with black acrylic paint. For each digit, set the
assembly inside the pla_digit_plug_cup piece, then
pour some of the black casting resin in the cup,
filling it to the top (see Figure
C
). Gently tap the
assembly inside the cup to release any trapped
bubbles, then leave overnight to cure.
The next day, after making sure the resin is
100% cured, use a rotary tool or a sander to sand
off the bottom of the plug cup, exposing the light
grid. ...