> For the complete documentation index, see [llms.txt](https://docs.revrobotics.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.revrobotics.com/ion-build/onshape-examples/high-complexity.md).

# High Complexity

{% hint style="success" %}
Don't see what you're looking for? Check out our other Onshape examples too!

* [Low Complexity](/ion-build/onshape-examples/low-complexity.md)
* [Medium Complexity](/ion-build/onshape-examples/medium-complexity.md)
  {% endhint %}

## Drivetrains

### West Coast Drivetrain - [Onshape File](https://cad.onshape.com/documents/888fadc78be2b5e328c8cc2f/w/5071ff3a09cccc32a13f5f12/e/1908556125c3df6ce41c6e41)

This drivetrain incorporates two [2 Motor Drivetrain Gearbox - Through Bore](https://www.revrobotics.com/rev-21-2190/). Each gearbox drives two sprocket and chain systems to omni-directional wheels. This model utilizes the [NEO Vortex Brushless Motors](https://www.revrobotics.com/rev-21-1652/) and [SPARK Flex Motor Controllers](https://www.revrobotics.com/rev-11-2159/).

The full BOM is available on the[ product page](https://www.revrobotics.com/rev-25-3267/).

<figure><img src="/files/Sy7oVaGfkSp461GbrUrG" alt="" width="375"><figcaption></figcaption></figure>

### 3in MAXSwerve Drivetrain - [Onshape File](https://cad.onshape.com/documents/881172ccbf1a3c6b84a7c7a5/w/47b88cdaad963852e7118016/e/910662262bf507b06f5cb8ce)

This drivetrain takes advantage of four [3in MAXSwerve Modules](https://www.revrobotics.com/rev-21-3005/), allowing the robot the ability to drive forward and backward, side-to-side, and rotate simultaneously without sacrificing traction. In this example the MAXTube has been cut to a shorter length than what comes in the drivetrain kit.&#x20;

The full BOM is available on the [product page.](https://www.revrobotics.com/rev-25-3270/)&#x20;

<figure><img src="/files/uYP5e2RhTWoksGFolTFN" alt="" width="375"><figcaption></figcaption></figure>

## Mechanisms

### 2019 Combined Mechanism - [Onshape File](https://cad.onshape.com/documents/5aa7760ddcb106600738fad8/w/baf3d7993bc4da809df37c3a/e/b1a87e9c808d2600788bb7b6)

Designed for the 2019 Deep Space FRC game, this mechanism uses a pulley system driven by NEOs to secure panels and cargo (balls).

<img src="/files/RvZZPDMbbP3ug23kO1E9" alt="" width="354">

### 2018 Intake - [Onshape File](https://cad.onshape.com/documents/4dc2f06464cfd111b67edfc4/w/f83d4f50a4a881cc5566e3d1/e/0821e9ae0bf539088b949009)

Designed for the 2018 Power Up FRC game, this mechanism uses a pully system driven by NEOs to retrieve cubes.&#x20;

<img src="/files/z5U9DXn8l11m9vPNeahu" alt="" width="375">

### Linear Actuator Arm - [Onshape File](https://cad.onshape.com/documents/06974ad27e50b686765e15dd/w/481d7447921df08496a9debd/e/4847c69ce77a2881d627ddf4)

Showcases the [Linear Actuator](https://www.revrobotics.com/rev-21-2735/) as part of a liftable arm. In this example, the Linear Actuator is mounted using a [pillow block](https://www.revrobotics.com/rev-21-2750/) to a [MAXSpline Shaft](https://www.revrobotics.com/rev-21-2520/) on a [dead axle](https://www.revrobotics.com/rev-21-2510/) to allow adjustable movement as the arm lifts.

<figure><img src="/files/jBnogICdQgzuWH8304wc" alt="" width="272"><figcaption></figcaption></figure>

## Full Robots

### Bumper Brackets on West Coast Drive Drivetrain - [Onshape File](https://cad.onshape.com/documents/2aac6c78eb84019c40694b0c/w/f058fd373bb29ed085c6ccc6/e/553bb02393aeb9c1b1ac3128)

Designed to showcase the [Differential Drivetrain Bumper Bracket Kit](https://www.revrobotics.com/rev-25-3062) on a West Coast Drive Drivetrain and featured in the [Assembly Instructions](/ion-build/build-guides/bumper-kit/west-coast-drivetrain-with-maxtube.md#drivetrain-bumper-kit-assembly-instructions).

<figure><img src="/files/fwayJBMzv0Xuvpr8bpgp" alt=""><figcaption></figcaption></figure>

### Bumper Brackets on the FRC Kit of Parts Chassis (AM14U5) - [Onshape File](https://cad.onshape.com/documents/47534c79e25bd34ee539ff90/w/3b08d10d1d56a07d59673df3/e/3a07b945132b3efa3734b171)

Designed to showcase the [Differential Drivetrain Bumper Bracket Kit](https://www.revrobotics.com/rev-25-3062) on the FRC Kit of Parts Chassis (AM14U5) and featured in the [Assembly Instructions](/ion-build/build-guides/bumper-kit/west-coast-drivetrain-with-maxtube.md#drivetrain-bumper-kit-assembly-instructions).

<figure><img src="/files/1yx4snd87cpwKnK5tBbh" alt=""><figcaption></figcaption></figure>

### 2023 REV ION FRC Starter Bot - [Onshape File](https://cad.onshape.com/documents/56a12b92fd203ac55406d12b/w/84a419a826bbc981204d4309/e/3c4370600ccd32582effc7bc)

Designed for the 2023 FRC game CHARGED UP as part of the [Starter Bot program](https://docs.revrobotics.com/frc-kickoff-concepts/2023/starter-bot-2023-rev-ion-frc).  This robot was able to clamp down on the different game pieces to secure them for placement. The full bill of materials is [available here](https://docs.revrobotics.com/frc-kickoff-concepts/2023/2023-rev-ion-frc-starter-bot/2023-rev-ion-frc-starter-bot-build-guide#id-2023-rev-ion-frc-starter-bot-assembly-instructions).&#x20;

<figure><img src="/files/PN2pUpqTl9ns6a5RCivb" alt=""><figcaption><p>2023 REV ION FRC Starter Bot</p></figcaption></figure>

### 2024 REV ION FRC Starter Bot - [Onshape File](https://cad.onshape.com/documents/13d6b4106d6774d042b595f2/w/19474c47606fa4f8682cf6dd/e/f062f614d6e785bd19908ebe)

Designed for the 2024 FRC game CRESCENDO as part of the [Starter Bot program](https://docs.revrobotics.com/frc-kickoff-concepts).  This robot was able to retrieve and shoot note game pieces into the different goals. The full bill of materials is [available here](https://docs.revrobotics.com/frc-kickoff-concepts/2024/2024-rev-ion-frc-starter-bot#id-2024-rev-ion-frc-starter-bot-resources).

<figure><img src="/files/b7MNVFdyMG7C2svTOLry" alt=""><figcaption></figcaption></figure>

### 2025 REV ION FRC Starter Bot - [Onshape File](https://cad.onshape.com/documents/47614d6047ccfa83733cc0b4/w/5735643e1df5c4c3d39686f1/e/d6f2553ae791c97f8d37e235)

Designed for the 2025 FRC game REEFSCAPE as part of the [Starter Bot program](https://docs.revrobotics.com/frc-kickoff-concepts/2025/2025-starter-bot-walkthrough). This robot was able to place coral on the reefs with its single-stage elevator and integrated wrist, as well as pick up algae. The full bill of materials is [available here](https://store-t3eo8vwp22.mybigcommerce.com/content/docs/2025_REV_ION_FRC_Starter_Bot-BOM.pdf).&#x20;

<figure><img src="/files/paFVQdXJN1DYlzrR0TPZ" alt=""><figcaption></figcaption></figure>