the ServoBlocks would be a very economical way to
supercharge your servos.
Carrying on the oral tradition in a way that the skalds
of Iceland would be proud of, the assembly instructions
for the ServoBlock come in the form of a nicely produced
video on the ServoCity website. The video not only covers
the assembly (which is straightforward), but also explains
the design philosophy, and a gives rundown of the various
types of ServoBlocks.
Much like Vikings ships, the design of the ServoBlocks
is elegant and effective. The bottom frame component
fastens to the standard servo case mounting holes with 6-
32 screws, and provides a plethora of other mounting
holes with a slightly oblong shape to accommodate a
variety of mounting
The two side
plates of the
the circular hub
pattern with a
clearance holes for 6-
32 screws, which
means that several
servos can be joined
with ease. The bearing
is a perfect fit for the
hub, and the hub
embraces the servo
spline like a Viking
gripping a horn full of
mead after a full day
ServoBlock is intuitive
and easy; reminiscent of putting together a LEGO kit.
The unit comes with 6-32 screws, and a screwdriver is
the only tool needed to supercharge your servo. For the
plain shaft ServoBlock, you’ll need to figure out how you
want to attach things to the half inch diameter hollow
shaft. We opted for a clamp, which also comes
conveniently equipped with a mounting hole pattern that
aligns with the hub pattern.
Setting a ServoBlock-equipped servo side-by-side with
an unenhanced unit really does evoke a servo wearing an
exoskeleton. Will such an outfit be enough to make a
humble servo battle ready?
On the Chopping ServoBlock
We’ve always had a deep and abiding
fascination with medieval weaponry. Aside from
the romantic connotations of chivalry and
adventure, medieval weaponry also
demonstrates some sophisticated mechanical
design. Trebuchets and mangonels are perennial
favorites for students of mechanical design, but
even simpler devices possess their own sort of
Take the battle axe, for example. It’s a tool
that was adapted for battle — a weapon that
was cheaper to make than a sword, and
generally lighter weight than its utilitarian cousin
by virtue of being meant for cleaving limbs
instead of denser harder wood.
Viking axes in particular were designed to
56 SERVO 01.2018
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AN HS-5485HB SERVO FROM HITEC.
THE DISASSEMBLED PLAIN SHAFT SERVOBLOCK.
LIKE IF IRON MAN WAS A SERVO.