Google

Sunday, September 14, 2008

Scribbler Robot

The Scribbler Robot is an intelligent programmable robot for ages eight years and older. Rolling around on three wheels, it communicates via light and sound. It has light and infrared sensors, allowing it to find its way around objects, detect light sources, and follow lines drawn on the floor. It's called the "Scribbler" because it can also draw patterns and lines as it moves.
Picture of product

The three large holes in the center are the light detectors. The two holes nearer the front are infrared emitters. The center front hole is the infrared detector.The center top hole is called the "Pen Port", enabling the robot to "scribble": Place a marker in that hole, and the marker will touch the ground on the other side, thus drawing a line as the robot moves. The grilled hole below that is the speaker. Below the "Scribbler Robot" logo we have 4 LED lights, used for communication and status.
Below the LEDs, we have a 9-pin female serial connector - this "Programming Port" is what the unit uses to communicate with a computer for programming. To the left of the Programming Port is the red reset button. To the right of the Programming Port is the Scribbler's On / Off switch.
The battery the lower half (the Scribbler requires 6 AA batteries, and rechargeables work fine). Above the center "Pen Port" we see the four infrared line sensors used for detecting lines on the ground as the unit moves.

Vex Robotics

The Vex Robotics Design System, is a build-it-yourself robot creation kit. Like an electric erector set, you need some batteries, some imagination, and a desire to build. The results will be a functional robot you can control with a wireless radio transmitter (like a remote-controlled car). With upgrades to the basic kit, you can add more features, parts, abilities, and even the ability to program the robot, allowing it to interact with the world on its own.

The excellent Vex manual provides you with instructions on how to build a basic robot, capable of movement and collision detection. The three shots below are a slightly-modified version of that robot.
The battery pack is the blue box on top of the unit. The radio receiver is the smaller yellow box beside the battery pack. The red and gray buttons on the front and back ends are collision detectors: If the robot bumps into something, it stops the wheels from turning (preventing your from stripping the gears or wearing out the axle mounts or motors). The large gray unit below the battery pack and radio receiver is the brain of your robot: The Vex Micro Controller. Plugging motors, sensors and other things into this unit allows your robot to move and interact with the world.

The Vex is intended for use by children and adults able to not only understand basic mechanics, but those able to work with small parts (like screws and motor components) and understand basic electronics concepts (you'll need to do a bit of tweaking to adjust trim levels on the radio transmitter, and motors and batteries and radio receivers need to be connected correctly for everything to function. The manuals do an excellent job of describing how everything works, but you still need the patience and delicate handing such components require

Robot arm edge gripping device

An edge gripping device grips and ungrips a substrate, such as a semiconductor wafer. A blade extends in a distal direction from a base of the device. At least one distal contact member is provided at the tip of the blade. Two proximal lever arms are pivotally coupled for synchronized, oppositely directed rotation to the base. Each lever arm has at least one proximal contact member at an outer end. A biasing member is coupled to the two proximal lever arms and to an actuator to effect pivoting movement of the lever arms.

The pivoting motion moves the ends of the arms generally radially toward and away from the center of the substrate to be gripped or ungripped, thereby minimizing sliding of the substrate. The biasing member is biased to retain the lever arms in a closed position in the event of a power failure. Ramps are provided next to each contact member. The contact members and ramps are profiled to minimize the zone of the substrate edge that is contacted. The lever arms are pivotally mounted with flexural pivot members having no sliding motion, to minimize particle generation.

The edge gripping device of the present invention eliminates the need for separate actuators to move both proximal contacts. The synchronized, radial motion of the lever arms is able to provide centering of the substrate on the device, in some cases eliminating the need for a pre-aligner device. The device is able to accommodate substrates that are slightly off center on their supports or slightly warped. The edge exclusion, the zone of contact along the substrate's edge, is minimized, for example to less than 1 mm for semiconductor wafers. The lever arms are mounted using flexural pivot members that have no sliding motion, thereby minimizing particle generation.

Kranius

Kranius is a two-wheeled robot that you can program without a personal computer. The intellectual brain consists of an 8 bit micro-controller and keyboard with 33 tactile buttons. This bundle of brains can store up to 60 programming steps and 30 FOR-NEXT multiplex loops. In addition to its futuristic and powerful design, it features 6 vision sensors to see in front and below the robot. The eyes that enable it to see in front of itself has two infrared LEDs and an infrared detector IC. 4 floor light sensors (CdS sensor) will enable it to distinguish the contrast of light underneath its shell.

Dr. Robot says this robot is more than just fun. Assembling, building, and following instructions help develop fine motor skills and hand-eye coordination. Because it's programmable, one has to plan ahead, think systematically and logically, develop problem-solving skills, and will challenge you to think creatively.

Easy to assemble, this OWIKIT Intermediate building level robot makes a great entrant for robotic competitions, robotic workshops, after-school programs, special events, gifts, science enrichment camps, and classroom activities.

Power Source: 2-"AA" batteries and 1-"9V" battery.

Size is W145 x H85 X L140 mm. No Soldering Required.

Robot Kit

A robot kit is a special construction kit for building Robots. Robot kits are also supplied by several companies. In some cases, the kits can be available without electronics as well, to provide the user the opportunity to use his or her own.
Beginner series of robot kits inspires first level of insights into electronic & scientific principles, & do not require soldering.

There are intermediate and advanced kits require soldering.Soldering tools and batteries indicated for each kit are not included.They are mostly made of plastic elements like Lego Mindstorms and the robotics bioloid, or aluminium elements like Lynxmotion's servo erector set and the Qfix set.

The kits can consist of structural elements, mechanical elements, motors, sensors and a controller board to control inputs and outputs.