2 layers330 × 140 mm
2 layers330 × 140 mm
Explorekb rev3
scottcjx/explorekb-75a gasket mounted 75% keyboard to explore
- Size
- 330 × 140 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 140
- Nets
- 119
- Pads
- 753
- Tracks, vias
- 740, 103
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 5 Jan 2023
- Updated
- 29 Sep 2023
Overview
Explorekb rev3 is an open-source printed circuit board by scottcjx, from the scottcjx/explorekb-75 repository on GitHub, published under the MIT licence. It is a 2-layer board of 330 × 140 mm with 140 parts on 119 nets, routed with 740 tracks and 103 vias.
It is built around the BAT54C. Its parts include 79 switches, 40 diodes, 4 capacitors, 2 resistors and 2 ICs. It belongs with the keyboards and input boards of this library.
Main components
1README
README.mdexplorekb-75
an open source 75% layout keyboard project as a start to my exploration in my keyboard making journey.
Changelog
-
Rev 4
Due to conflict of space between Controller Board and plate, controller board is shifted, allowing for plate to cover full length of Keyboard PCB.
Keyboard PCB:
- Shifted Blackpill Controller Board to the edge of the keyboard PCB, cut-out Keyboard PCB to allow for Blackpill to solder directly onto keyboard PCB with the USB port be like a center-mount USB on the keyboard PCB.
- Rotated OLED display 180 degrees. (now facing down)
Plate:
- WIP
-
Rev 3
Keyboard PCB:
- Reverted back to using development board as controller, specifically using WeAct Studio Blackpill STM32F401 Controller Board.
- Tweaked layout to have 15 keys on ROW 0, including last 2 columns, COL 13 and 14 to be EC11 rotary encoders.
- Changed to have all diodes be BAT54C.
- Added OLED screen. (facing up)
Plate:
Due to conflict of space between Controller Board and plate, the plate is unable to cover full length of Keyboard PCB, 3d printing the plate is then the safer option.- Due to the change in layout from Rev 2 to Rev 3, Rev 2 plates are NOT compatible with Rev 3 Keyboard PCB.
-
Rev 2
Keyboard PCB:
Plate:
Parts
140| Qty | Value | Footprint | References |
|---|---|---|---|
| 77 | SW_SPST | keyswitch_pretty:Kailh_socket_MX | SW1, SW2, SW10, SW11, SW12, SW13, SW16, SW17, SW18, SW19, SW20, SW21, SW22, SW23, SW24, SW25 +61 |
| 40 | BAT54C | _scott_lib:SOT-23 | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +24 |
| 4 | 100n | _scott_lib:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1, C2, C3, C4 |
| 3 | Stabilizer_MX_2u | keyswitch_pretty:Stabilizer_MX_2u | STAB1, STAB2, STAB3 |
| 2 | 4k7 | _scott_lib:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | R1, R2 |
| 2 | RotaryEncoder_Switch | _scott_lib:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm | SW14, SW15 |
| 1 | LOGO | _scott_graphics_lib:muffin_glasses_fp | G*** |
| 1 | SSD1306 | _scott_lib:SSD1306_128X32 | U2 |
| 1 | Stabilizer_Cherry_MX_6.25u | Mounting_Keyboard_Stabilizer:Stabilizer_Cherry_MX_6.25u | STAB4 |
| 1 | YAAJ_WeAct_BlackPill_Part_Like | YAAJ_Blackpill:YAAJ_WeAct_BlackPill_2 | U1 |
The 132 most common of 140 parts.
Questions
How big is the Explorekb rev3 PCB?
It measures 330 × 140 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Explorekb rev3 use?
140 parts, built around the BAT54C. 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 Explorekb rev3 KiCad files?
From the scottcjx/explorekb-75 repository on GitHub, at the commit this page was made from: the board is hardware/keyboard-pcb/explorekb75-rev3/explorekb-rev3.kicad_pcb and its schematic hardware/keyboard-pcb/explorekb75-rev3/Controller.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Explorekb rev3 design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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