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2 layers76.2 × 19 mmNumatray, the printed circuit board in 3D

The Numatray is a 4-key macropad and fountain pen rest project.

Size
76.2 × 19 mm
Copper layers
2
Thickness
1.6 mm
Parts
10
Nets
18
Pads
49
Tracks, vias
44, 0
Pours
1
Routed
Yes
KiCad
KiCad 7 (file 20221018)
Created
25 Nov 2024
Updated
18 Mar 2025

Overview

Numatray is an open-source printed circuit board by marksard, from the marksard/Numatray repository on GitHub. It is a 2-layer board of 76.2 × 19 mm with 10 parts on 18 nets, routed with 44 tracks and 0 vias.

Its parts include 5 switches and 1 IC. It belongs with the keyboards and input boards and the RP2040 boards of this library.

README

README.md

Numatray

The Numatray is a 4-key macropad and fountain pen rest project.

Completed example

IMGP8970

img

Layout

img
img

Support software

QMK Firmware
https://github.com/marksard/qmk_firmware/tree/own_build/keyboards/marksard/numatray

Build guide

https://github.com/marksard/Numatray/blob/main/documents/buildguide.md

Parts

10
QtyValueFootprintReferences
4M2_THMarksard_Audio:M2_THT_HoleH1, H2, H3, H4
1Aai03.MX_Solderable:MX-Solderable-1USW1
1Bai03.MX_Solderable:MX-Solderable-1USW2
1Cai03.MX_Solderable:MX-Solderable-1USW3
1Dai03.MX_Solderable:MX-Solderable-1USW4
1REwSMarksard_Keyboard:RotaryEncoder_EC12E-Switch_VerticalSW5
1rp2040zeroMarksard_Audio:rp2040zero_compactU1

Questions

How big is the Numatray PCB?

It measures 76.2 × 19 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Numatray use?

10 parts. 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 Numatray KiCad files?

From the marksard/Numatray repository on GitHub, at the commit this page was made from: the board is pcb/rev1/Numatray.kicad_pcb and its schematic pcb/rev1/Numatray.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Numatray design in my own project?

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

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