Scribot Introduction

Day 1-4 
Introduction and Build 
Click here to experience our Scribot build videos!

Key Terms 

Acrylic

Understand that the bot is made of laser cut acrylic and that acrylic is a plastic which in solid form is rigid, clear, and transparent often used as glazing in areas for additional safety as it does not shatter.

Laser cutting

Understand that LASER stands for light amplified stimulated emission radiation and that a CO2 laser cut out the parts for SCRIBOT

Orings

Understand the our orings are donut shaped rings of butyl rubber

AA batteries

Understand that AA batteries use an oxidation-reduction reaction to make electrons move from the negative terminal to the postive terminal of the battery. Understand that they produce 1.5 volts and 2000 mamps

22 Gauge wire

Understand that the large the gauge the smaller the wire

Stranded/solid

Understand the difference between stranded and solid wire

AWG

Understand that AWG stands for american wire gauge

Stepper motor

Understand  A stepper motor (or step motor) is a brushless DC electric motor that divides a full rotation into a number of equal steps. The motor's position can then be commanded to move and hold at one of these steps without any feedback sensor (an open-loop controller), as long as the motor is carefully sized to the application.

Arduino

Understand an Arduino is a tool for making computers that can sense and control more of the physical world than your desktop computer. It's an open-source physical computing platform based on a simple microcontroller board, and a development environment for writing software for the board.

Friction fit

Understand that a friction fit joint uses friction to hold parts together. It requires very precise manufacturing to create a reliable joint between two parts.

Snap fit

Understand that a snap fit joint uses friction to hold parts together. It requires very precise manufacturing to create a reliable joint between two parts.

2-56 screws and nuts

Understand how to read screw and nut designations. So, #2 has a major diameter of 0.086"and 56 threds per inch

Motor controllers ULN2003

A Motor Controller is a device that acts as intermediary between your robot's microcontroller, batteries and motors. A motor controller is necessary because a microcontroller can usually only provide roughly 0.1 Amps of current whereas most actuators (DC motors, DC gear motors, servo motors etc.) require several Amps.

Servo

A Servo is a small device that incorporates a two wire DC motor, a gear train, a potentiometer, an integrated circuit, and an output shaft. Of the three wires that stick out from the motor casing, one is for power, one is for ground, and one is a control input line.

Gel pen

A gel pen uses ink in which pigment is suspended in a water-based gel. Because the ink is thick and opaque, it shows up more clearly on dark or slick surfaces than the typical inks used in ballpoint or felt tip pens. Gel pens can be used for many types of writing and illustration.

DPDT switch

 Adding another pole to the SPDT creates a double-pole, double-throw (DPDT) switch. Basically two SPDT switches, which can control two separate circuits, but are always switched together by a single actuator. DPDTs should have six terminals

Breadboard

a board for making an experimental model of an electric circuit.

Rubber band

Band made of rubber

Caster bearing

Is a wheel made of a ball or caster that can turn in any direction

Wire nuts

Plastic caps with metal threaded linings used to connect two or more wires

Tolerance

an allowable amount of variation of a specified quantity, especially in the dimensions of a machine or part.

Jumper wires

A short wire used to complete an electric circuit or bypass a break in a circuit.




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