The Parallax Elev- 8 is a quality,
open platform with an active
support forum and quick domestic
access to parts and accessories. The
price may seem a little steep at
$599, but considering that the
HoverFly Open Board alone sells for
$120, it's reasonably priced.
In addition to the large payload
capacity, one of the selling points
of the Elev- 8 is access to parts for
repair or modification. Bend an
aluminum arm or lose a 4-40 bolt,
and simply pick up a replacement
at your local hardware store.
Given that Parallax offers the
source files for the hardware, you
could send the files out to have
them fabricated in aluminum,
carbon fiber, or fiberglass. You can't
do that with one of the cheaper frames from Asia.
Most importantly, the Propeller-based HoverFly
Open Board provides a powerful open platform
for experimentation. That's the real selling point of
Photo 18. Use prop pitch as a mounting guide. This photo is
of the motor at 2 o'clock, intended to spin clockwise.
It's designed for the experimenter. Plus, there's no
better way to understand a robotics platform than to build
it from the ground up. SV
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