# Hardware

- [Design Fundamentals](https://wiki.purduesigbots.com/hardware/design-fundamentals.md): Learn about all of the different engineering and design principles that go into a robot.
- [Gear Ratios](https://wiki.purduesigbots.com/hardware/design-fundamentals/gear-ratios.md): Gear ratios are one of the most common design decisions that a team must master in order to optimize mechanical advantage in their designs.
- [Internal Forces (Stress)](https://wiki.purduesigbots.com/hardware/design-fundamentals/internal-forces-stress.md)
- [Torque](https://wiki.purduesigbots.com/hardware/design-fundamentals/torque.md)
- [RPM](https://wiki.purduesigbots.com/hardware/design-fundamentals/rpm.md)
- [Center of Mass](https://wiki.purduesigbots.com/hardware/design-fundamentals/center-of-mass.md)
- [Introduction to VEX Parts](https://wiki.purduesigbots.com/hardware/misc.-vex-parts-1.md): Outside of general building knowledge and subsystem variations, there are many different uses for the wealth of parts used in constructing a VEX robot.
- [Structure](https://wiki.purduesigbots.com/hardware/misc.-vex-parts-1/structure.md): Hardware used to attach parts to each other.
- [C-Channels and Angles](https://wiki.purduesigbots.com/hardware/misc.-vex-parts-1/structure/c-channels-and-angles.md): Important components for main structural foundations.
- [Fasteners](https://wiki.purduesigbots.com/hardware/misc.-vex-parts-1/structure/fasteners.md): Crucial for attaching structural pieces to each other.
- [Retainers](https://wiki.purduesigbots.com/hardware/misc.-vex-parts-1/structure/retainers.md): Simplify robot construction with hex nut retainers and standoffs retainers.
- [Gussets and Brackets](https://wiki.purduesigbots.com/hardware/misc.-vex-parts-1/structure/gussets-and-brackets.md): Smaller metal pieces used to mount structural components.
- [Bearings](https://wiki.purduesigbots.com/hardware/misc.-vex-parts-1/structure/bearings.md): Ensure smooth, frictionless motion in moving parts.
- [Plate Metal and Flat Bars](https://wiki.purduesigbots.com/hardware/misc.-vex-parts-1/structure/plate-metal-and-flat-bars.md): Versatile structural components with a variety of uses.
- [Motion](https://wiki.purduesigbots.com/hardware/misc.-vex-parts-1/motion.md): Parts that make things go.
- [High Strength Components](https://wiki.purduesigbots.com/hardware/misc.-vex-parts-1/motion/high-strength-components.md)
- [Gears and Sprockets](https://wiki.purduesigbots.com/hardware/misc.-vex-parts-1/motion/gears-and-sprockets.md)
- [Traction Wheels](https://wiki.purduesigbots.com/hardware/misc.-vex-parts-1/motion/traction-wheels.md): Mitigate the effects of opposing defense with traction wheels.
- [Mecanum Wheels](https://wiki.purduesigbots.com/hardware/misc.-vex-parts-1/motion/mecanum-wheels.md): Clever programmers can take advantage of mecanum wheels to improve maneuverability in the autonomous period.
- [Omnidirectional Wheels](https://wiki.purduesigbots.com/hardware/misc.-vex-parts-1/motion/omnidirectional-wheels.md): Wheels that have a multitude of degrees of freedom thanks to their rollers.
- [Flex Wheels](https://wiki.purduesigbots.com/hardware/misc.-vex-parts-1/motion/flex-wheels.md): Compressible wheels that are useful for intakes, flywheels, and even drivetrains.
- [Robot Decorations](https://wiki.purduesigbots.com/hardware/robot-decorations.md)
- [Part Dyeing](https://wiki.purduesigbots.com/hardware/robot-decorations/part-dyeing.md): This article contains dangerous actions that should only be taken with adult supervision. Purdue SIGBots do not recommend the following actions are taken without proper training.
- [Metal Coloring](https://wiki.purduesigbots.com/hardware/robot-decorations/metal-coloring.md)
- [License Plate Holders](https://wiki.purduesigbots.com/hardware/robot-decorations/license-plate-holders.md)
- [Lifts](https://wiki.purduesigbots.com/hardware/lifts.md): Do you even lift bro?
- [Double Reverse Four Bar (DR4B or RD4B)](https://wiki.purduesigbots.com/hardware/lifts/dr4b.md): The mighty Double Reverse Four Bar.
- [Four Bar](https://wiki.purduesigbots.com/hardware/lifts/four-bar.md): The 4 bar lift, the simplest linkage for keeping both ends parallel.
- [Scissor Lift](https://wiki.purduesigbots.com/hardware/lifts/scissor-lift.md): The tall and controversial scissor lift.
- [Six Bar](https://wiki.purduesigbots.com/hardware/lifts/six-bar.md): The six bar lift, the four bar's big brother.
- [Other Lifts](https://wiki.purduesigbots.com/hardware/lifts/other-lifts.md): Other lifts that could possibly be found on robots
- [Best Practices](https://wiki.purduesigbots.com/hardware/lifts/best-practices.md): Tips and Tricks for building good lifts.
- [Shooting Mechanisms](https://wiki.purduesigbots.com/hardware/shooting-mechanisms.md)
- [Catapult](https://wiki.purduesigbots.com/hardware/shooting-mechanisms/catapult.md): Flingin' things
- [Flywheel](https://wiki.purduesigbots.com/hardware/shooting-mechanisms/flywheel.md): Shooting things and busting encoders
- [Linear Puncher](https://wiki.purduesigbots.com/hardware/shooting-mechanisms/linear-puncher.md)
- [Drivetrains](https://wiki.purduesigbots.com/hardware/vex-drivetrains.md): Vex drivetrains are assemblies, generally made of wheels, used to traverse the VRC field. Each drivetrain has its own set of advantages and disadvantages.
- [Tank Drive](https://wiki.purduesigbots.com/hardware/vex-drivetrains/tank-drive.md)
- [Mecanum Drive](https://wiki.purduesigbots.com/hardware/vex-drivetrains/mecanum-drive.md)
- [Holonomic Drive](https://wiki.purduesigbots.com/hardware/vex-drivetrains/holonomic-drive.md)
- [Designing a Drivetrain](https://wiki.purduesigbots.com/hardware/vex-drivetrains/designing-a-drivetrain.md)
- [Best Practices](https://wiki.purduesigbots.com/hardware/vex-drivetrains/best-practices.md)
- [Pivots & Joints](https://wiki.purduesigbots.com/hardware/vex-joints.md): Joints are attachment points between components used to create mechanisms based on rotation.
- [Pneumatics](https://wiki.purduesigbots.com/hardware/pneumatics.md): Frankly this is just a lot of hot air...
- [Best Practices - Pneumatics](https://wiki.purduesigbots.com/hardware/pneumatics/best-practices-pneumatics.md)
- [Intakes](https://wiki.purduesigbots.com/hardware/intakes.md): Tips on building a good intake, regardless of the game.
- [Flip Out Mechanisms](https://wiki.purduesigbots.com/hardware/flip-out-mechanisms.md): Tips on building mechanisms that extend outside of the robot's starting size.
- [Defensive Mechanisms](https://wiki.purduesigbots.com/hardware/defensive-mechanisms.md): With VRC drives becoming more powerful, Defensive Mechanisms can help give teams an edge when it comes to defensive play.
- [Misc. Building Techniques](https://wiki.purduesigbots.com/hardware/misc.-vex-parts.md): Outside of specific mechanisms and subsystems, which have their own section, there is much general information that can be applicable in many applications when building.
- [VexU](https://wiki.purduesigbots.com/hardware/vexu.md)
- [Common Manufacturing Techniques](https://wiki.purduesigbots.com/hardware/vexu/common-manufacturing-techniques.md)
- [3D Printing](https://wiki.purduesigbots.com/hardware/vexu/common-manufacturing-techniques/3d-printing.md)
- [Laser Cutting](https://wiki.purduesigbots.com/hardware/vexu/common-manufacturing-techniques/laser-cutting.md)
- [Custom Manufactured Parts Library](https://wiki.purduesigbots.com/hardware/vexu/custom-manufactured-parts-library.md)
- [Commercial Off The Shelf Parts Library](https://wiki.purduesigbots.com/hardware/vexu/commercial-off-the-shelf-parts-library.md): Commercial Off The Shelf - COTS


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