Synaptics Coralboard SL personal project

Coralboard SL – Modular Case & Holder Design

Project Overview

This is a personal project I took upon myself after discovering a contest to design a case for the Coralboard SL. First, I researched the purpose of the Coralboard and learned that its main goal is to allow developers to run AI and machine-learning models locally, directly on the device, without relying on cloud computing, as well as provide a platform for rapid prototyping. Knowing this, I wanted the design to be as modular as possible, with the option to switch between different sensors and allow the user to connect the board to a variety of machines and robots. That's why I decided to use standard VESA mounting options. After that, I started thinking about how the board could be used during the initial prototyping and coding stages, when having it sit on a desk would be more convenient. This led me to design a holder for the case that can rotate and flip, while also being detachable and independently mountable to a machine or robot. Overall, this project helped me improve my 3D modeling skills and problem-solving abilities. It was also a fun weekend project that allowed me to experiment with different design solutions.

The modeling was done using SolidWorks 2025.

The entire build is designed with a tolerance of ±0.2 mm, ensuring a precise fit between all the printed components and hardware.

BOM (Bill of Materials)

Main Hardware

• 1× Coralboard SL

• 4× M4 16 mm screws

• 1× M5 50 mm bolt

• 8× M3 8 mm screws (12× with the screen extension)

• 4× M4 hex nuts

• 1× M5 hex nut

3D-Printed Parts – PLA / PETG / ABS

• 1× Classic Case / Modular Case (for the sensor extension)

• 1× Case Cover Without Screen / Case Cover With Screen (for the sensor extension)

• 1× Holder Base

• 1× Holder

• 1× Holder Screw

• 1× ToF Case (optional extension)

• 1× RPi Case (optional extension)

3D-Printed Parts – TPU

• 1× I2S2 Cover

• 1× PIN OUT Cover

• 1× PIN IN Cover

• 1× SD Cover

• 1× USB-C Cover

• 1× USB 3.0 Cover

Assembly Instructions

#1 – Printing

Print both the PLA G-code and the TPU G-code files. Supports are not necessary for either material, but using supports for the PLA parts can help ensure a better and more reliable print.

#2 – Assembling the Holder

Take the holder base and the holder and connect them using the M5 bolt. Tighten it completely to lock the holder in place, or leave it slightly loose to allow ROM (Range of Motion) when adjusting the case.

#3 – Connecting the Case to the Holder

Take the holder screw and screw it into the holder (Picture #7).

Next, take your preferred printed case and insert the screw into the designated hole (Picture #8).

#4 – Installing the Coralboard SL

Take the Coralboard SL and place it inside your preferred case (Classic / Modular). Secure it using 4× M3 8 mm screws.

If you printed the sensor extension version, install the RPi case and the ToF case into their designated holes on the sides of the main case.

#5 – Closing the Case

Take the appropriate case cover (Classic / Modular), place it on top of the case, and secure it using 4× M3 8 mm screws.

#6 – Installing the Connector Covers

Install the necessary connector covers (e.g., PIN IN Cover / PIN OUT Cover).

Keep in mind that these covers help prevent dust from entering the openings, but they also restrict airflow and can reduce passive cooling.

#7 – Powering On

Connect the power supply to the system, and enjoy your build!

#8 – VESA Mounting (Optional)

If you want to mount the system, you can use either the 4 holes on the case or the 4 holes on the holder base to attach it to a VESA mount.

The case uses MIS-B (20 × 50 mm), while the holder base uses MIS-D 75 mm (75 × 75 mm).

Both mounting standards use M4 screws.

This project is fully human-made and no AI was used