

Forti
13u pcb for Førti
- Size
- 245.7 × 83.8 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 164
- Nets
- 115
- Pads
- 640
- Tracks, vias
- 844, 80
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 2 Jun 2023
- Updated
- 10 Jul 2025
Overview
Forti is an open-source printed circuit board by calvin-mcd, from the calvin-mcd/Forti repository on GitHub. It is a 2-layer board of 245.7 × 83.8 mm with 164 parts on 115 nets, routed with 844 tracks and 80 vias.
It is built around the 74AHCT1G125SE, USBLC6-2SC6 and SKQGABE010, with the SMF9.0CA among its other parts. Its parts include 65 diodes, 10 capacitors, 6 switches, 4 ICs and 3 resistors. It belongs with the STM32 boards of this library.
Main components
474AHCT1G125SE
SOT-353-40℃~+125℃ 1 1 4.5V~5.5V 4.7ns@5V,50pF 40uA 74AHCT 8mA 8mA Schmitt trigger Tri-State Unidirectional SOT-353 Buffers, Drivers, Receivers, Transceivers ROHSDiodes IncorporatedBuffers, Drivers, Receivers, TransceiversUSBLC6-2SC6
SOT-23-60.35pF、0.8pF 100nA 150W@8/20us 15V 2 5V 6A@8/20us 6V ESD SOT-23-6 ESD and Surge Protection (TVS/ESD) ROHSUMWESD And Surge Protection (TVS/ESD)SKQGABE010
SMD-4P,5.2x5.2mm-40℃~+90℃ 1,000,000 cycles 1.5mm 1.6N 12V 5.2mm 5.2mm 50mA Round Button SPST-NO Surface Mount,Vertical SMD-4P,5.2x5.2mm Tactile Switches ROHSALPSALPINETactile SwitchesSMF9.0CA
SOD-123FLESD And Surge Protection (TVS/ESD)hongjiacheng
README
README.mdFørti
The Førti pcb (40 in Norwegian) is a 13u 40% pcb with full basekit support for the upcoming Førti keyboard case created and designed by xonuss and xezioh that is based on Geon's F1-8x. The pcb takes its layout and design cues from the oxymoron, bully and ttocyobitna amongst others. It's a stm32 based pcb for low cost, good performance.
Layout

Case
WIP, design by xonuss

Todo
- order & test pcb
- create firmware
- order & test case
- revise mx pcb
- create HS & EC pcbs (work-in-progress)
Disclaimer
Please note that this project is a work in progress with no guarantees of a working outcome. No-one involved in this project is responsible for any usage issues that may arise. However, feel free to edit, modify and otherwise utilise these files.
License
This work is licensed under a
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
Credits
Big thanks to xonuss and xezioh for letting me join this awesome collaboration!
As always big thanks to the many people who helped and inspired this board!
Any questions, contact Calvin0563 on Discord.
Parts
164| Qty | Value | Footprint | References |
|---|---|---|---|
| 50 | MX_SW_HS | PCM_marbastlib-mx:SW_MX_1u | MX2, MX10, MX11, MX14, MX15, MX16, MX17, MX18, MX19, MX20, MX21, MX22, MX23, MX26, MX27, MX28 +34 |
| 47 | D_Small | Diode_SMD:D_SOD-123F | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +31 |
| 18 | WS2812_2020 | PCM_marbastlib-various:LED_WS2812_2020 | LED1, LED2, LED3, LED4, LED5, LED6, LED7, LED10, LED11, LED12, LED13, LED14, LED15, LED16, LED17, LED18 +2 |
| 8 | MX_SW_HS | PCM_marbastlib-mx:SW_MX_1.5u | MX1, MX12, MX40, MX44, MX46, MX49, MX51, MX55 |
| 7 | 100nF | Capacitor_SMD:C_0603_1608Metric | C4, C5, C6, C7, C8, C9, C10 |
| 5 | LOGO | LOGO | G***, G***, G***, G***, G*** |
| 3 | MX_SW_HS | PCM_marbastlib-mx:SW_MX_1.75u | MX13, MX36, MX37 |
| 2 | 1uF | Capacitor_SMD:C_0603_1608Metric | C1, C2 |
| 2 | 225 | PCM_marbastlib-mx:STAB_MX_P_2.25u | S1, S4 |
| 2 | 275 | PCM_marbastlib-mx:STAB_MX_P_2.75u | S3, S5 |
| 2 | 5k1 | Resistor_SMD:R_0603_1608Metric | R1, R2 |
| 2 | MX_SW_HS | PCM_marbastlib-mx:SW_MX_1.25u | MX24, MX25 |
| 2 | MX_stab | PCM_marbastlib-mx:STAB_MX_P_2.25u | enter2.1, shift2.2 |
| 1 | 10k | Resistor_SMD:R_0603_1608Metric | R3 |
| 1 | 10uF | Capacitor_SMD:C_0603_1608Metric | C3 |
| 1 | 500mA | Fuse:Fuse_1206_3216Metric | F1 |
| 1 | 7 | PCM_marbastlib-mx:STAB_MX_P_7u | S2 |
| 1 | 74AHCT1G125 | Package_TO_SOT_SMD:TSOT-23-5 | U4 |
| 1 | MX_SW_HS | PCM_marbastlib-mx:SW_MX_1.75u_STP_1.25 | MXcaps1 |
| 1 | MX_stab | PCM_marbastlib-mx:STAB_MX_P_2.75u | shift2.1 |
| 1 | MX_stab | PCM_marbastlib-mx:STAB_MX_ISO-ROT | ISO1 |
| 1 | SKQGABE010 | Button_Switch_SMD:SW_SPST_SKQG_WithoutStem | SW1 |
| 1 | SMF9.0CA | Diode_SMD:D_SOD-123 | D_PWR1 |
| 1 | STM32F072C8Tx | Package_QFP:LQFP-48_7x7mm_P0.5mm | U2 |
| 1 | USBLC6-2SC6 | Package_TO_SOT_SMD:SOT-23-6 | U1 |
| 1 | USB_C_Receptacle_USB2.0 | Connector_USB:USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J1 |
| 1 | XC6206PxxxMR-Regulator_Linear | Package_TO_SOT_SMD:SOT-23 | U3 |
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Questions
How big is the Forti PCB?
It measures 245.7 × 83.8 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Forti use?
164 parts, built around the 74AHCT1G125SE, USBLC6-2SC6, SKQGABE010 and SMF9.0CA. 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 Forti KiCad files?
From the calvin-mcd/Forti repository on GitHub, at the commit this page was made from: the board is Project/previous iteration/forti.kicad_pcb and its schematic Project/EC-wip/EC matrix.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Forti design in my own project?
Its repository states no licence, so its author keeps all rights: ask calvin-mcd before reusing the design.
