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I'm talking about.
Second — and most importantly
— it takes time to wrap your head
around 3D printing. Think back to
all of the worthless flyers and
incomprehensible manuscripts that
were generated with the help of the
first home laser printers. Simply
because you own a printer doesn't
mean you can write or format a
document correctly.
The same holds true for 3D
printing. You don’t just 'print' a
quadcopter. You need to know, for
example, about methods of cutting
weight with minimal loss in strength,
and how to arrange your objects in
3D space so that printing is quick
and waste is minimal. Then, there's
finishing the printed object to
remove support splines or ripples
from the low-resolution printing. It's
art and science.
Even if you don't buy into the
world of 3D printing today, at least
check the status of the industry and
then recheck it in six months. Pay
attention to the hardware printer
proper, but also the software tools
and the all-important peripherals,
including 3D scanners and
associated software.
What's the old saying about the
future and plastics? Clearly, it's what
dreams are made of. NV
READER
FEEDBACK
GETTING THE
RIGHT TONE
In your Developing Perspectives
column on the Lost World of Tubes
in the December 2012 issue, you
mentioned that at low volume
settings tube amps make annoying
hisses and pops. While vacuum
tubes are more prone to hum, hiss,
and microphonics than good solid-
Continued on page 76
February 2013 9
