Next, I use a #80 drill bit to drill holes for sound egress in
the fan grille at the rear of the shell. I drilled holes between
every other slat in the grille. The holes are so small that you
don’t notice them after they are drilled, particularly after I
dry-brush the fan with some grimy black paint, but they let
out a lot of air [17].
Frame preparation
In order to To accommodate the speaker and the decoder, you
will have to mill the frame a bit. Photo [18] shows the areas, in
black, that need to be milled off each side of the frame.
Be VERY careful when cutting/milling around the motor mount
hole at the top of the frame and around the cutout for the
15
15. The light gray area is where excess material was
removed.
N scale sound - 6
MRH-Dec 2014
