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2 layers109 × 89.2 mmHalf swept, the printed circuit board in 3D

My experience modifying and building a 34 key ferris sweep keyboard I themed after the cold war space race...

Size
109 × 89.2 mm
Copper layers
2
Thickness
1.6 mm
Parts
24
Nets
24
Pads
214
Tracks, vias
574, 20
Pours
2
Routed
Yes
KiCad
KiCad 7 (file 20221018)
Created
18 Feb 2023
Updated
23 Jan 2025

Overview

Half swept is an open-source printed circuit board by mindcat, from the mindcat/interkosmos_kb repository on GitHub. It is a 2-layer board of 109 × 89.2 mm with 24 parts on 24 nets, routed with 574 tracks and 20 vias.

Its parts include 18 switches, 1 IC and 1 connector. It belongs with the AVR (ATmega, ATtiny) boards of this library.

README

circuit/Sweep-half-swept/README.md

Sweep Half Swept

Half of a Sweep2 with a reversible micro-controller footprint.

Parts

24
QtyValueFootprintReferences
17SW_PushKailh:SW_PG1350_rev_DPBSW2, SW3, SW4, SW5, SW6, SW8, SW10, SW11, SW12, SW14, SW15, SW16, SW17, SW18, SW20, SW21 +1
2MountingHole_Padkbd:1pin_connB-, B+
1AudioJack4dpbKailh:TRRS-PJ-DPB2J2
1ProMicro-kbdkbd:ProMicro_v2U1
1SW_Pushkbd:ResetSWRSW1
1SW_SPDTKailh:SPDT_C128955POWER SW
1SW_SPDTKailh:SPDT_C128955rSW2

Questions

How big is the Half swept PCB?

It measures 109 × 89.2 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Half swept use?

24 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 Half swept KiCad files?

From the mindcat/interkosmos_kb repository on GitHub, at the commit this page was made from: the board is circuit/Sweep-half-swept/half-swept.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.

Can I use the Half swept design in my own project?

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

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