FRC Robotics 101 The Basics Robot Parts Chassis

FRC Robotics 101 The Basics

Robot Parts Chassis Pronounced “chassie”. Bare, skeletal, metal framework Supports everything on the robot Can refer to “skeleton” of anything - cars, planes, etc. Ours is usually C-Channel and 80 -20 Doesn’t include wheels, manipulators, electronics

Mechanical - Parts 80 -20 - Stock Aluminum Extrusion that we use often

Mechanical - Parts C-Channel - Part of the KOP distributed by FIRST Robot Frame

Mechanical - Parts Screws - Threads into a part - pointed - no external fastener Bolt - goes through a part, and has to use a nut to secure itself Nut - goes on the end of a bolt to secure it Locking vs. Nonlocking Screws Nuts Bolts Nylock Nut

Mechanical - Power Saws Band Saw - Blade is one continuous loop that spins around two wheels Chop/Mitre Saw Jigsaw - Blade moves up and down Chop/Mitre Saw Band Saw Jigsaw

Mechanical - Power Tools Drill Press Belt/Disk Sander Dremel Bench Grinder Belt Sander Drill Press Bench Grinder Dremel

Electronics - Tools Soldering Iron Heat Gun Crimper Wire Stripper Soldering Iron Heat Gun Wire Stripper Crimper

Electronics - Parts Robo. Rio New this year, combines c. Rio and Digital Sidecar with an accelerometer “Brains” of the robot - handles code and calculations Accelerometer is a sensor that measures acceleration

Electronics - Parts Motor Controllers (Speed Controllers) Receive data from Robo. Rio that it uses to tell a specific motor when to run Controls specific voltage sent to motor Several types - Talons are standard, Victors secondary standard, Jaguars outdated

Electronics - Parts Power Distribution Board (PD Board) Takes power directly from the battery Allocates power at different amperages to different components (Talons, Sensors, Robo. Rio)

Electronics - Motion Motors - turn electrical energy into rotational energy Measured with two numbers Free speed, in rpm’s - how fast it goes with no weight at full power Stall torque in in-lbs, amount of torque need to stop it at full power Controlled by Talons We use CIM (sim) motors frequently - most powerful we have Servos Essentially small, weak motors Very precise - easy to position accurately Controlled directly from Robo. Rio

Pneumatics Uses compressed air to create linear motion Pistons produce motion Solenoids take input from the robo. Rio and send air to pistons Tanks store air internally Produces reliable, strong motion Come in every size and length imaginable

Engineering - Gearing Changes speed to power and vice versa via several methods Gears/Gearbox Belts - Same as gears, but can be farther apart Chains - Generally same as belts

General Knowledge “COTS” means “Commercial, off the shelf”. These are widely available parts that anyone could easily buy. They are not included in the price calculations for your robot.