2 layers
Indicator driver
virtualagc/agc_hardware
Schematics and board layouts for an Apollo Guidance Computer replica
176 parts118MIT
2 layers355.7 × 129.3 mm
Hackboard
sz6084/ScaraboardI wanted to create a keyboard to replace my old keyboard that I spilled a smoothie over, a (surprisingly decent and fully-sized) membrane keyboard.
- Size
- 355.7 × 129.3 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 176
- Nets
- 124
- Pads
- 719
- Tracks, vias
- 1,079, 20
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 9 Mar 2025
- Updated
- 24 Oct 2025
Overview
Hackboard is an open-source printed circuit board by sz6084, from the sz6084/Scaraboard repository on GitHub. It is a 2-layer board of 355.7 × 129.3 mm with 176 parts on 124 nets, routed with 1,079 tracks and 20 vias.
It belongs with the RP2040 boards of this library.
README
README.mdScaraboard
A keyboard with some Scaramouche art on it!
Inspiration
I wanted to create a keyboard to replace my old keyboard that I spilled a smoothie over, a (surprisingly decent and fully-sized) membrane keyboard. Scaraboard has 88 switches, 1 rpi pico, and no LEDs (I don't want the hassle and my current keyboard doesn't have it anyways, though RGB in a future one would be cool). Also Genshin Impact.
Challenge
I had only just designed my macropad, and now i had to scale it up. I followed an online guide and consulted my trusty friend who had more experience than I did. I also asked questions in the Hack Club Slack.
Specifications
Bill of Material
| Part | Qty | Price | Link |
|---|---|---|---|
| PCB | 5 | $21.50 | https://cart.jlcpcb.com/quote?orderType=1&homeUploadNum=f9d340d1b5944b91bde815b77c3f36ea&businessType=example&fileName=hackboard.zip |
| MX Switches | 88 | $17.60 | https://mechanicalkeyboards.com/products/gateron-ks-3-milky-yellow-pro-50g-linear-pcb-mount |
| Keycaps | 88 | $13.99 | https://www.amazon.com/Doubleshot-Mechanical-Keyboard-Compatiability-Keyboads/dp/B0F7H32LKC |
| Stabilizers | 1 | $10.00 | https://cannonkeys.com/products/cherry-stabilizers?variant=32257338998895 |
| 1N4148 Diode | 88 | $8.80 | https://www.digikey.com/en/products/detail/onsemi/1N4148/458603 |
| Orpheus Pi Pico | 2 | --- | https://orpheuspico.hackclub.com |
| Subtotal | --- | $77.89 | --- |
| Approx. Total Price (with shipping) | --- | $106.33 | --- |
Others:
- Case is 3d printed in PLA
- 4x M3x12 screw
- 4x M3x4 heat set inserts
- KMK firmware
| Schematic | PCB | Case |
|---|---|---|
Parts
176| Qty | Value | Footprint | References |
|---|---|---|---|
| 87 | 1N4148 | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D_0, D_1, D_2, D_10, D_11, D_12, D_13, D_14, D_15, D_16, D_17, D_18, D_19, D_20, D_21, D_22 +71 |
| 72 | KEYSW | Button_Switch_Keyboard:SW_Cherry_MX_1.00u_PCB | K_0, K_1, K_2, K_10, K_11, K_12, K_13, K_14, K_15, K_16, K_17, K_18, K_19, K_20, K_21, K_22 +56 |
| 7 | KEYSW | Button_Switch_Keyboard:SW_Cherry_MX_1.25u_PCB | K_76, K_77, K_78, K_80, K_81, K_82, K_83 |
| 2 | KEYSW | Button_Switch_Keyboard:SW_Cherry_MX_1.50u_PCB | K_33, K_46 |
| 2 | KEYSW | Button_Switch_Keyboard:SW_Cherry_MX_2.25u_PCB | K_62, K_63 |
| 1 | KEYSW | Button_Switch_Keyboard:SW_Cherry_MX_2.75u_PCB | K_74 |
| 1 | KEYSW | Button_Switch_Keyboard:SW_Cherry_MX_2.00u_PCB | K_29 |
| 1 | KEYSW | Button_Switch_Keyboard:SW_Cherry_MX_6.25u_PCB | K_79 |
| 1 | KEYSW | Button_Switch_Keyboard:SW_Cherry_MX_1.75u_PCB | K_50 |
| 1 | LOGO | LOGO | G*** |
| 1 | Pico | MCU_RaspberryPi_and_Boards:RPi_Pico_SMD_TH | Pico0 |
Questions
How big is the Hackboard PCB?
It measures 355.7 × 129.3 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Hackboard use?
176 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 Hackboard KiCad files?
From the sz6084/Scaraboard repository on GitHub, at the commit this page was made from: the board is PCB/hackboard.kicad_pcb and its schematic PCB/hackboard.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Hackboard design in my own project?
Its repository states no licence, so its author keeps all rights: ask sz6084 before reusing the design.
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