The opinionated_60 is a fixed-layout ANSI-based 60% mechanical keyboard PCB for Cherry MX-style switches with split BACKSPACE, split RIGHT_SHIFT, and 7u SPACE bar; there’s no option for a stepped CAPS_LOCK key.
The opinionated_60 is a rather modified, stripped-down, cleaned-up, and re-wired revision of the Plain60 MKD Edition (ANSI version) by manzel, which itself is a modified version of the Plain60 Flex Edition (rev2.2) by evyd13.
The PCB design and schematics were created in KiCad 8.0.2.
- Fits the SINGAKBD × TGR Unikorn and the HAYTCO CAKE60! <3
- QMK and Vial support via the respective firmware
- No LEDs, no RGB, and no underglow!
- n-key rollover (NKRO)
Also fits most universal 60% cases (Mekanisk Klippe & Fjell, KBDfans Tofu, etc.), where fits means Unikorn-style gummy o-ring friction fit, not traditional tray mount as there’s no holes for screws! Consider universal 60% case support experimental, and please do your research regarding your specific (use) case.
- ATmega32U4-AU microcontroller
- USB 2.0 Type-C connector (default), and/or
- JST connector for unified daughterboard (optional)
- ESD protection chip and fuse to protect the PCB
- ISP pin holes for flashing QMK and Vial firmware
- AST1109MLTRQ audio indicator (piezo buzzer/speaker) (optional)
The 7u bottom row can be configured as blockerless, WKL (winkeyless), or HHKB-style.
The plate drawings were created in KiCad’s PCB design tool and could be manufactured as “PCB” from e.g. aluminum base material or regular FR-4 in any color. CNC-machining the plate has not been attempted, yet.
PCB and plate production files for can be found in the Gerber directory.
The production files were generated via JLCKicadTools.
Absolutely no guarantee for anything.
Use at your own risk!
Creative Commons Attribution Share Alike 4.0 International (CC-BY-SA-4.0)