MrCube R-16

built by Michael Roybal

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Target Environment Locomotion Method
Indoors 2 Wheels
Sensors / Input Devices Actuators / Output Devices
2 whiskers
IR receiver
2 gear motors
Control Method Power Source
Autonomous Battery
CPU Type Operating System
PIC Microcontroller None
Programming Lanuage Weight
N/A N/A
Time to build Cost to build
N/A N/A
URL for more information
http://www.inklesspress.com/robots_4.htm
Comments

The R-16 robot is a one cubic inch robot. It is capable of reacting to its environment with music wire whiskers. It can move and explore the perimeter of a box or a room on its own. It can also be remoted controlled using an infrared remote controller. It has pre-programmed reaction patterns. It is an attempt to create a one cubic inch robot that does not use surface mount technology. For me, It turned out to be barely possible. Plated .1 inch machined pin headers and sockets were used to allow separation of the robot into halves, giving easy access to the middle of the robot. There was only room for three 1.5v batteries, so they ended up powering both the motors and the picaxe controller. Because of noise problems from the motors, this is usually not a good idea, but so far it seems to be working.

The space was so tight that the thickness of the 28 gauge wire insulation turned out to be a problem. I could barely put the two halves of the robot together. I estimate that at least 85% of the volume of the robot was filled with components. The problem of wire thickness in very small circuits can be solved by using 30 guage magnet wire. The robot was so small that even an on-off switch was problematic. Eventually, I hope to replace the crude whiskers with infrared sensors. I have literally run out of easy to use space, so fitting anything more, without resorting to surface mount technology will be an interesting challenge.

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