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Getting Started with EasySwerve

What is Swerve Drive?

Swerve drivetrains use standard wheels mounted on their own pivoting mechanisms. Most swerve drivetrains, including EasySwerve, require two motors per wheel: one to rotate the wheel, and one to control the direction the wheel points. Your robot can move in any direction because the drive wheels pivot without changing the orientation of the drivetrain, but this type of drivetrain can become technically complex very quickly.

diagram showing the possible movements of a swerve drivetrain

How is EasySwerve Different from other Swerve Modules?

  • Designed with accessibility in mind – prioritizing team experience regardless of skill level with simple assembly, easy maintenance, and a fully enclosed geartrain.

  • Durable Base Plate and Cover made from 30 percent glass-filled nylon for impact resistance and lightweight performance.

  • Wide motor compatibility including NEO 2.0, NEO Vortex with SPARK Flex, NEO 1.1, and CIM (top-mount only), with both 8mm keyed and 8mm 15T Spline pinions included to adapt additional FRC legal motors like Kraken X60 or Thrifty Pulsar.

  • Optimized gearing featuring a 20:1 azimuth reduction and 6.3:1 drive reduction, achieving up to 18.79 ft/s with NEO Vortex or 15.724 ft/s with the NEO 2.0 Brushless Motor.

  • 4in wheel system for high speeds, more ground clearance, and quick wheel changes using the MAXSpline interface.

  • Tread options include standard 4in wheels and high-traction 4in Spiky Wheels with replaceable TPU tread.

  • Straightforward calibration using a 1/8in or 3mm hex key that locks into a dedicated azimuth alignment pocket easily accessible from the top meaning you don't need access under the robot.

  • Easy integration with MAXTube and 0.5in-on-pitch chassis systems using the included mounting holes on the base plate.

  • Only four tools are necessary for assembly and calibration, keeping your drivetrain maintenance kit light and affordable.

Swaping wheels with a single hex key and minimal hardware

Choosing your Motors

Motor Compatibility

EasySwerve supports an exceptionally wide range of motors for both steering and drive. Teams can use NEO 2.0 Brushless Motors, NEO Vortex with SPARK Flex, NEO 1.1, Kraken X60, Falcon with 8mm shaft installed, and even CIM motors.

Motor Orientation

EasySwerve Modules can be assembled with motors mounted on either the top or bottom, providing flexibility for packaging your drivetrain. If a design demands ultimate flexibility, you can even mount one motor on the top and one on the bottom!

Bottom Mounted Motor Clearance

This guideline was defined assuming that the terrain the robot will drive on is flat. Driving over bumps or debris may cause damage to your motors.

Motor Gears - "P17" vs "P27"

Each EasySwerve Module Kit includes QTY 4 - 20DP Motor Gears with different input bores. Only two of these Motor Gears are necessary for assembly; however, most motors are only compatible with one version of the Motor Gear. Below is a table that can help you determine which 20DP Motor Gear is compatible with the drive and steering motors for your EasySwerve.

20DP Motor Gear - 15mm Spline (P27)
20DP Motor Gear - 8mm Keyed (P17)

Use with motors that have an 8mm 15T Spline output shaft

Use with motors that have an 8mm keyed output shaft. You will need to also use the included motor key and retaining ring to mount your motor.

Examples of compatible motors: - NEO 2.0 - NEO Vortex with 15mm Spline Shaft installed - Kraken X60 and more!

Examples of compatible motors: - NEO V1.1, NEO V1 - NEO Vortex with 8mm Shaft installed

- Falcon with 8mm keyed shaft - CIM and more!

Wheel Options

Each EasySwerve Module Kit includes one Traction Wheel - MAXSpline - 4in - Hard V2 (REV-21-4418)

Parameter
Value and Units

Preparing to Build an EasySwerve Module

Supplies Needed

In addition to the 4in EasySwerve Module Kit (REV-21-3006), you will need tools, motors, an encoder, and a few additional supplies.

Tools

Electronics

Other

Coming soon: Updated materials list for assembling an EasySwerve Drivetrain!

Diameter

4.00in

Width

1.50in

Weight

208g (0.46lbs)

The 4in Spiky Wheel and it's associated tread are designed to be used with the 4in EasySwerve Module. The Spiky tread provides superior grip and performance, especially on carpet. The one-piece split tread design allows for quick and seamless replacements without the need to fully remove the wheel. As a consumable component, these treads are built for performance but will naturally wear down over time.

Parameter
Value and Units

Material

Aluminum 6061

Diameter

3.66in

Width

1.44in

Parameter
Value and Units

Material

Injection-Molded TPU 95A

Length

11.33in

Width

1.44in

Material

Glass-Filed Nylon & TPR

Durometer

Regardless of which wheels you choose for your EasySwerve Module, they should be replaced as the tread wears down due to regular use. For more information, check out our Wheel Evaluation Documentation!

Traction Wheel - MAXSpline - 4in - Hard V2

To ensure your Traction Wheel - MAXSpline - 4in - Hard is the updated version, look for a star (circled on the image above) on the tread. We do not recommend using older Traction Wheels with EasySwerve because they are significantly more susceptible to delamination and rapid wheel wear.

Wheel Specifications

75A

4in Spiky Wheel - Aluminum Hub & Tread

Overview

Hub Specifications

Tread Specifications

Weight

245g

Thickness

0.34in

Weight

58g