All new aluminum beams now available from ServoCity are useful for lever arms, bell cranks, and for structural
support. The aluminum beams are machined from 6061-T6
aluminum to create a very strong and lightweight part.
These beams have .140” thru holes with a .770”
spacing, which is found throughout the ServoCity product
line. The aluminum beams are available in the following
lengths and sold as individual beams: 1.54”, 2. 31”, 3.08”,
3.85”, 4. 62”, 6.16”, and 7. 70”. Lengths are calculated from
the center of the first hole to the center of the last hole.
They are useful in robotics, R/C, animatronics, and
Aluminum Hub Spacers
Also available from ServoCity are new aluminum hub spacers which are useful for spacing a gear, sprocket,
wheel, or any .770” pattern attachment off of a ServoCity
16 SERVO 12.2012
component. The 1” outside diameter allows a 1” ID ball
bearing to slide over the hub spacer; the 1/2” inside
diameter can also be used with their 1/4” ID flanged
The hub spacers are constructed of 6061-T6 aluminum
which is strong yet lightweight. They utilize the 0.770” hub
pattern that is standard through the ServoCity product line
and have both tapped holes and thru holes for versatility.
Available thickness include 1/8”, 1/4”, 3/8”, 1/2” 3/4”, or
1”. These spacers are sold individually.
For further information, please contact:
Zumo Shield for Arduino
Pololu announces the release of the Zumo Shield — an Arduino shield designed for use with the Zumo tracked
chassis. The shield includes dual motor drivers, a buzzer for
playing simple sounds and music, and a three-axis
accelerometer and compass. It mounts directly onto the
Zumo chassis, and the Arduino plugs into the shield, face
down. The shield boosts the battery voltage to power the
Arduino, and it breaks out the Arduino reset button, user
LED, and I/O lines for convenient accessibility and to
accommodate additional sensors.
With the Zumo shield and an Arduino Uno or
Leonardo, the Zumo chassis becomes a low profile,
Arduino-controlled tracked robot that is less than 10 cm on
each side (small enough to qualify for mini Sumo