Skip to the content
PCBKitNew board
2 layers109.9 × 48 mmMec, the printed circuit board in 3D

All the parts! CAD, PCB and STL files for all of Mugsy's physical components.

Size
109.9 × 48 mm
Copper layers
2
Thickness
1.6 mm
Parts
15
Nets
44
Pads
120
Tracks, vias
310, 48
Pours
1
Routed
Yes
KiCad
KiCad 8.0 (file 20240108)
Created
22 Oct 2022
Updated
11 Jan 2026

Overview

Mec is an open-source printed circuit board by MugsyOS, from the MugsyOS/Design repository on GitHub. It is a 2-layer board of 109.9 × 48 mm with 15 parts on 44 nets, routed with 310 tracks and 48 vias.

It is built around the SK6812. Its parts include 5 capacitors, 4 connectors and 1 diode. It belongs with the AVR (ATmega, ATtiny) boards of this library.

Main components

1

README

pcb/mech-control/readme.md

image

Components:

  • Nano Microcontroller
  • 2x DRV8825 Stepper Drivers
  • 2x10 pin headers for IO bridge
  • 12v input
  • 12v pass through
  • 2x 47uf electrolytic capacitors
  • 3x 100nf decoupling capacitors
  • RJ45 Jack for connecting cone mech
  • TRRS Jack for connecting spout

⠀IO Bridge: The IO bridge exposes all of the unused Nano’s pins except for reset and VIN:

  • 2x 3V3
  • 2x 5V
  • 4x GND
  • A0
  • A1
  • A2
  • A4 / SDA
  • A5 / SCL
  • A6
  • A7
  • D0
  • D1
  • D12
  • D13
  • AREF

All of the analog pins can also be used as digital pins as needed. Board Files: The schematic and board files have been uploaded to the design repo here.

Parts

15
QtyValueFootprintReferences
3100nfCapacitor_SMD:C_0805_2012MetricC1, C3, C5
247ufCapacitor_SMD:CP_Elec_6.3x7.7C2, C4
2B2P-VH_LF__SN_mugsy:JST_B2P-VH_LF__SN_XA1, XA2
2Pololu_Breakout_DRV8825Module:Pololu_Breakout-16_15.2x20.3mmA2, A3
1Arduino_Nano_v3.xModule:Arduino_NanoA1
1AudioJack4Connector_Audio:Jack_3.5mm_KoreanHropartsElec_PJ-320D-4A_HorizontalJ1
1Conn_01x02_PinConnector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_VerticalJ4
1Conn_02x10_Odd_EvenConnector_PinHeader_2.54mm:PinHeader_2x10_P2.54mm_VerticalJ3
1SK6812LED_SMD:LED_SK6812_PLCC4_5.0x5.0mm_P3.2mmD1
1~mugsy:MUGSY_RJ45-8N-BJ2

Questions

How big is the Mec PCB?

It measures 109.9 × 48 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Mec use?

15 parts, built around the SK6812. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the Mec KiCad files?

From the MugsyOS/Design repository on GitHub, at the commit this page was made from: the board is pcb/mech-control/mec.kicad_pcb and its schematic pcb/mech-control/mec.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Mec design in my own project?

Its repository states no licence, so its author keeps all rights: ask MugsyOS before reusing the design.

Similar boards

  • 2 layers299 × 82.5 mmPixelWave, the printed circuit board in 3D

    PixelWave

    hackclub/OnBoard

    💡 Join 1,000 teenagers and make your first PCB with a $100 grant!

    663 parts915
  • 4 layers95 × 95 mmOpenmicro, the printed circuit board in 3D

    Openmicro

    conol-ai/openmicrokbd

    Open-source recreation of OpenAI's Codex Micro macropad — PCB written in CoHDL, an AI-native hardware description language. Rust firmware (embassy) + companion app (makepad). MIT licensed. https://openmicrokbd.org

    88 parts154MIT
  • 2 layers312.5 × 122.3 mmSHEGO75-V5, the printed circuit board in 3D

    SHEGO75-V5

    Charading/Shego75HE

    My endgame 75% hall effect keyboard

    392 parts75
  • 2 layers140.1 × 121.8 mmTH LEDS, the printed circuit board in 3D

    TH LEDS

    DraftShift/Tophat

    StealthChanger now has an official website!

    89 parts64GPL-3.0
  • 2 layers187.9 × 127.2 mmDya panelized, the printed circuit board in 3D

    Dya panelized

    cormoran/dya-dash-keyboard

    DYA Dash portable wireless split keyboard with 25mm trackball

    269 parts57CC-BY-4.0
  • 2 layers145 × 145 mmNeofighter, the printed circuit board in 3D

    Neofighter

    w4ilun/neofighter

    A MIDI controller using arcade buttons with RGB lighting effects

    111 parts51
  • 2 layers176 × 189.6 mm8x8, the printed circuit board in 3D

    8x8

    miliar/saiboard

    An open-source, wooden electronic Go board that integrates with KataGo.

    222 parts48GPL-3.0
  • 6 layers128 × 128 mmEmberone, the printed circuit board in 3D

    Emberone

    256foundation/emberone00-pcb

    KiCAD design files for the emberOne/00 hashboard

    395 parts45CERN-OHL-S-2.0