HardLabs

Fracture

SharKingStudios·Fracture·PCB/Fracture Connector.kicad_pcb

Fracture PCB layout, top view — open source board by SharKingStudios

About the Fracture PCB

Fracture is an open source PCB design by SharKingStudios, published on GitHub under the MIT license. It is a 2-layer board measuring 77.1 × 97.8 mm, with 77 components from 2 distinct parts.

It belongs with the audio and keyboards designs in this gallery.

From the project

An infinitely expandable, velocity sensing split midi keyboard.

It's an infinitely expandable MIDI keyboard system built around an ESP32-S3, designed so each board is a fully-featured synth module. When you connect a bunch together, they behave like one giant, continuous instrument. Each board gives you 2 octaves of hall-effect keys (24 main keys), plus 8 “function” keys for extra tricks. It also has onboard I2S audio output, a buzzer synth per board, and 45 addressable RGB LEDs for underglow + status. Boards talk to each other over RS-485 chaining so note events get shared, and it also does USB MIDI, meaning any board plugged into your computer speaks…

Fracture, from the project README
From the project README

Fracture bill of materials (BOM)

77 components, 2 distinct parts.

QtyPartRefs
44
Conn_01x08_Pin
J5, J6, J7, J8, J9, J10, J11, J12 +36
33
VAL**
mouse-bite-2.54mm-slot, mouse-bite-2.54mm-slot1, mouse-bite-2.54mm-slot2, mouse-bite-2.54mm-slot3, mouse-bite-2.54mm-slot4, mouse-bite-2.54mm-slot5, mouse-bite-2.54mm-slot6, mouse-bite-2.54mm-slot7 +25

Fracture design files

The KiCad project lives in the SharKingStudios/Fracture repository on GitHub; these links point at the commit this page was built from.

Fracture: common questions

How big is the Fracture PCB?

The Fracture measures 77.1 × 97.8 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Fracture?

77 components, from 2 distinct parts. The full bill of materials is listed on this page.

Where can I download the Fracture design files?

From the SharKingStudios/Fracture repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Fracture design in my own project?

Yes, under the terms of its MIT license, which SharKingStudios chose for the repository.

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