2 layers282 × 94 mm
Legshark65 rev1
jemmec/legshark
An open source 60% (15 by 5) ortholinear keyboard designed with both flexability and familiarity in mind.
163 parts3MIT
2 layers285.8 × 95.3 mm
Legshark65 rev2
jemmec/legshark3An open source 60% (15 by 5) ortholinear keyboard designed with both flexability and familiarity in mind.
- Size
- 285.8 × 95.3 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 210
- Nets
- 120
- Pads
- 840
- Tracks, vias
- 719, 102
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 29 Apr 2023
- Updated
- 16 Apr 2024
Overview
Legshark65 rev2 is an open-source printed circuit board by jemmec, from the jemmec/legshark repository on GitHub, published under the MIT licence. It is a 2-layer board of 285.8 × 95.3 mm with 210 parts on 120 nets, routed with 719 tracks and 102 vias.
It is built around the STM32F411CEU6, AT24C256C-SSHL-T and MCP1700T-3302E/TT(MS), with the 1N4148WT, FN15B104K500PKG and SR0402FR-7T100RL among its other parts. Its parts include 15 capacitors, 11 resistors, 3 ICs, 3 connectors and 2 diodes. It belongs with the keyboards and input boards and the STM32 boards of this library.
Main components
12
STM32F411CEU6
UFQFPN-48(7x7)-40℃~+85℃ 1.7V~3.6V 100MHz 128KB 12bit 32 Bit 36 512KB ARM Cortex-M4 Built-in FLASH UFQFPN-48(7x7) Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsMicrocontrollers (MCU/MPU/SOC)
AT24C256C-SSHL-T
SOIC-8-40℃~+85℃ 1,000,000 cycles 1.7V~5.5V 1MHz 256Kbit 40 Years 5ms Hardware write protection function、Noise suppression function I2C SOIC-8 EEPROM ROHSMicrochip TechnologyEEPROM
MCP1700T-3302E/TT(MS)
SOT-23-40℃~+85℃@(Ta) 1 120uVrms 180mV@(300mA) 2uA 3.3V 300mA 5.5V 80dB@(100Hz) Fixed Over Current Protection、Over Temperature Protection Positive SOT-23 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSMSKSEMIVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
1N4148WT
SOD-523-55℃~+150℃ 1.25V@150mA 100V 150mA 150mW 1uA@75V 2A 4ns Independent SOD-523 Switching Diodes ROHShongjiachengSwitching Diodes
FN15B104K500PKG
0402100nF 50V X5R ±10% 0402 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSPSAMultilayer Ceramic Capacitors MLCC - SMD/SMT
SR0402FR-7T100RL
0402-55℃~+155℃ 100Ω 200mW 75V Thick Film Resistor ±1% ±100ppm/℃ 0402 Chip Resistor - Surface Mount ROHSYAGEOChip Resistor - Surface MountRC0402FR-7W100KL
0402-55℃~+155℃ 100kΩ 125mW 50V Thick Film Resistor ±1% ±100ppm/℃ 0402 Chip Resistor - Surface Mount ROHSYAGEOChip Resistor - Surface MountRK73H1ETTP1002D
0402-55℃~+155℃ 100mW 10kΩ 75V Thick Film Resistor ±0.5% ±100ppm/℃ 0402 Chip Resistor - Surface Mount ROHSKOA Speer ElectronicsChip Resistor - Surface MountMG15N150J500CT
040215pF 50V NP0 ±5% 0402 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSWalsin TechnologyMultilayer Ceramic Capacitors MLCC - SMD/SMTCQ02WGF4701TCE
0402-55℃~+155℃ 4.7kΩ 50V 62.5mW Thick Film Resistor ±1% ±100ppm/℃ 0402 Chip Resistor - Surface Mount ROHSUNI-ROYALChip Resistor - Surface MountZRB15XR61A475ME01D
040210V 4.7uF X5R ±20% 0402 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSMurataMultilayer Ceramic Capacitors MLCC - SMD/SMTMT15B103K500CT
040210nF 50V X7R ±10% 0402 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSWalsin TechnologyMultilayer Ceramic Capacitors MLCC - SMD/SMT
README
README.md
legshark
An open source 60% (15 by 5) ortholinear keyboard designed with both flexability and familiarity in mind.
- Highly customizable 60% ortho layout
- "Plateless" o-ring mounting
- 3D printable case
- UDB Support
Layout
The PCB supports many different layout options for the bottom row, embracing 1u keys but also with some left and right 1.5u modifier options.
The board also supports use of 2u keys in the usual TAB, LSHIFT, DELETE, and ENTER locations to maintain familiarity and speed with these often used modifiers.
PCB
NOTE: It is recommended to use screw-in stabilizers (yes they work with o-ring) due to clip-ins sometimes slipping between the three holes in the bottom row. I have slightly reduced the clip-in hole size which has mitigated the issue, but made them quite hard to push in.
These images may not be up-to-date.
Supports the Unified Daughterboard.
Mounting Styles
Supports a unique "plateless" o-ring mounting style. The PCB also has through-holes for plate mounting should that be preferred.
"Plateless" o-ring plate
The "plateless" o-ring mounting style lets you enjoy the unique characteristics and sound of a platless + o-ring board with the added benefit of being able to remove/change the plate after soldering in the switches.
The printable plate files can be found in ./stls. There are two files, one for 1.5u spaced switches (pictured) and one for the 1u spaced switches. Only the left side plate is supplied, you will need to vertically mirror the file in your slicer to print the right side. The optimal printing orientation is upside-down.
A standard 60% o-ring (OD 180-190mm) with a diameter of 2.5-3.5mm will work.
NOTE: If you intend to use a layout with the
2uSHIFT or DELETE keys these plates may need modified in order to fit the stabs.
Case
A 3D printable case designed around the "plateless" o-ring mounting system. It's a unibody design with a daughterboard cutout and recessed holes for 12mm rubber feet. The daughterboard is screwed into M2 threaded inserts.
Files for printing the case can be found in ./stls. The print has been split into two parts, since it is too large for standard-sized printer volumes. The two halves are designed to be glued together using key and slot guides for alignment and added strength. The optimal printing orientation is vertically with the case-sides facing down.
NOTE: I recommend using superglue to bond the two halves together.
- Glue all three keys into the slots of one of the halves.
- Add glue along the mating surface and in the slots of the other half.
- Carefully slide the two halves together using the keys and slots a guide.
- Clamp the halves together and let the glue dry for 10-20 minutes.
QMK
There is only one keymap avaliable for the keyboard currently. This keyboard has not been merged into the qmk repo yet. The firmware will need to be compiled and uploaded locally using QMK.
Copy ./qmk/keyboards into your /qmk_firmware folder then run the following command to compile the firmware:
qmk compile -kb legshark/rev2 -km defaultNOTE: You will need to modify the keymaps to support different layouts!
Keyboard Layout Editor:
[{x:2,c:"#c9a6de",t:"#383838",st:"KS-3-Tea",a:3,f:4},"ESC\n\n\n\n\n0\n\n\n\n\n\n0",{c:"#cccccc",a:1},"~\n`\n\n\n\n1\n\n\n\n\n\n0","!\n1\n\n\n\n2\n\n\n\n\n\n0","@\n2\n\n\n\n3\n\n\n\n\n\n0","#\n3\n\n\n\n4\n\n\n\n\n\n0","$\n4\n\n\n\n5\n\n\n\n\n\n0","%\n5\n\n\n\n6\n\n\n\n\n\n0","^\n6\n\n\n\n7\n\n\n\n\n\n0","&\n7\n\n\n\n8\n\n\n\n\n\n0","*\n8\n\n\n\n9\n\n\n\n\n\n0","(\n9\n\n\n\n10\n\n\n\n\n\n0",")\n0\n\n\n\n11\n\n\n\n\n\n0","_\n-\n\n\n\n12\n\n\n\n\n\n0","+\n=\n\n\n\n13\n\n\n\n\n\n0",{c:"#c9a6de",a:3},"DEL\n\n\n\n\n14\n\n\n\n\n\n0",{w:2},"DELETE\n\n\n\n2u\n0 14"],
[{w:2},"TAB\n\n\n\n2u\n1 0","\n\n\n\n\n0\n\n\n\n\n\n1","\n\n\n\n\n1\n\n\n\n\n\n1",{c:"#cccccc",f:6},"Q\n\n\n\n\n2\n\n\n\n\n\n1","W\n\n\n\n\n3\n\n\n\n\n\n1","E\n\n\n\n\n4\n\n\n\n\n\n1","R\n\n\n\n\n5\n\n\n\n\n\n1","T\n\n\n\n\n6\n\n\n\n\n\n1","Y\n\n\n\n\n7\n\n\n\n\n\n1","U\n\n\n\n\n8\n\n\n\n\n\n1","I\n\n\n\n\n9\n\n\n\n\n\n1","O\n\n\n\n\n10\n\n\n\n\n\n1","P\n\n\n\n\n11\n\n\n\n\n\n1",{a:1,f:4},"{\n[\n\n\n\n12\n\n\n\n\n\n1","}\n]\n\n\n\n13\n\n\n\n\n\n1","|\n\\\n\n\n\n14\n\n\n\n\n\n1"],
[{x:2,c:"#c9a6de",a:3},"CAPS\n\n\n\n\n0\n\n\n\n\n\n2","FN\n\n\n\n\n1\n\n\n\n\n\n2",{c:"#cccccc",f:6},"A\n\n\n\n\n2\n\n\n\n\n\n2","S\n\n\n\n\n3\n\n\n\n\n\n2","D\n\n\n\n\n4\n\n\n\n\n\n2",{a:1},"\n_\n\n\n\n5\nF\n\n\n\n\n2",{a:3},"G\n\n\n\n\n6\n\n\n\n\n\n2","H\n\n\n\n\n7\n\n\n\n\n\n2",{a:1},"\n_\n\n\n\n8\nJ\n\n\n\n\n2",{a:3},"K\n\n\n\n\n9\n\n\n\n\n\n2","L\n\n\n\n\n10\n\n\n\n\n\n2",{a:1,f:4},":\n;\n\n\n\n11\n\n\n\n\n\n2","\"\n'\n\n\n\n12\n\n\n\n\n\n2",{c:"#c9a6de",a:3},"\n\n\n\n\n13\n\n\n\n\n\n2","\n\n\n\n\n14\n\n\n\n\n\n2",{w:2},"ENTER\n\n\n\n2u\n2 14"],
[{w:2},"SHIFT\n\n\n\n2u\n3 0","\n\n\n\n\n0\n\n\n\n\n\n3","\n\n\n\n\n1\n\n\n\n\n\n3",{c:"#cccccc",f:6},"Z\n\n\n\n\n2\n\n\n\n\n\n3","X\n\n\n\n\n3\n\n\n\n\n\n3","C\n\n\n\n\n4\n\n\n\n\n\n3","V\n\n\n\n\n5\n\n\n\n\n\n3","B\n\n\n\n\n6\n\n\n\n\n\n3","N\n\n\n\n\n7\n\n\n\n\n\n3","M\n\n\n\n\n8\n\n\n\n\n\n3",{a:1,f:4},"<\n,\n\n\n\n9\n\n\n\n\n\n3",">\n.\n\n\n\n10\n\n\n\n\n\n3","?\n/\n\n\n\n11\n\n\n\n\n\n3",{c:"#bf6060",a:3,f:9},"↑\n\n\n\n\n12\n\n\n\n\n\n3",{c:"#c9a6de",f:4},"\n\n\n\n\n13\n\n\n\n\n\n3","\n\n\n\n\n14\n\n\n\n\n\n3"],
[{x:3,c:"#73c985"},"LCTL\n\n\n\n\n1\n\n\n\n\n\n4","\n\n\n\n\n2\n\n\n\n\n\n4","LALT\n\n\n\n\n3\n\n\n\n\n\n4",{c:"#7acdff",sm:"alps"},"\n\n\n\n\n4\n\n\n\n\n\n4","\n\n\n\n\n5\n\n\n\n\n\n4","\n\n\n\n\n6\n\n\n\n\n\n4","\n\n\n\n\n7\n\n\n\n\n\n4","\n\n\n\n\n8\n\n\n\n\n\n4","\n\n\n\n\n9\n\n\n\n\n\n4","\n\n\n\n\n10\n\n\n\n\n\n4",{c:"#bf6060",f:9},"←\n\n\n\n\n11\n\n\n\n\n\n4","↓\n\n\n\n\n12\n\n\n\n\n\n4","→\n\n\n\n\n13\n\n\n\n\n\n4"],
[{x:3,c:"#73c985",f:4,w:1.5},"LCTL\n\n\n\n\n4 1","\n\n\n\n\n2\n\n\n\n\n\n4",{w:1.5},"LALT\n\n\n\n\n4 4",{x:1,c:"#7acdff",w:3},"\n\n\n\n3u\n4 7",{x:1,c:"#73c985",w:1.5},"RALT\n\n\n\n\n4 10","\n\n\n\n\n4 12",{w:1.5},"RCTL\n\n\n\n\n4 13"],
[{x:3,w:1.5},"LCTL\n\n\n\n\n4 1",{w:1.5},"\n\n\n\n\n4 3",{c:"#7acdff",w:3},"\n\n\n\n3u\n4 5",{x:1,w:3},"\n\n\n\n3u\n4 9",{c:"#73c985",w:1.5},"\n\n\n\n\n4 11",{w:1.5},"RCTL\n\n\n\n\n4 13"],
[{x:8,c:"#7acdff",w:2},"\n\n\n\n2u\n4 7",{w:2},"\n\n\n\n2u\n4 8"],
[{x:7,w:2},"\n\n\n\n2u\n4 6",{w:2},"\n\n\n\n2u\n4 7"],
[{x:7,w:3},"\n\n\n\n3u\n4 6"],
[{x:9,w:3},"\n\n\n\n3u\n4 8"],
[{x:6,w:7},"\n\n\n\n7u\n4 7"]Liability
This open source hardware is provided as is and can not be held accountable for any damages and/or liabilities caused as a result of whatever you intend to use it for.
Parts
210| Qty | Value | Footprint | References |
|---|---|---|---|
| 73 | D | Diode_SMD:D_SOD-523 | 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 +57 |
| 71 | KEYSW | MX_Only:MXOnly-1U-NoLED | 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 +55 |
| 7 | 100n | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C6, C7, C9, C10, C11, C14, C17 |
| 6 | KEYSW | MX_Only:MXOnly-1.5U-NoLED | K_75, K_79, K_80, K_83, K_85, K_86 |
| 6 | Mount | MountingHole:MountingHole_3.2mm_M3_ISO14580_Pad | H4, H5, H6, H7, H8, H9 |
| 5 | KEYSW | Legshark:MXOnly-2U-ReversedStabilizers-NoLED | K_64, K_72, K_76, K_87, K_88 |
| 3 | 100R | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R2, R3, R11 |
| 3 | KEYSW | Legshark:MXOnly-2U-NoLED_SmallerHoles | K_70, K_74, K_84 |
| 2 | 100k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R4, R9 |
| 2 | 10k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R6, R15 |
| 2 | 15p | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C1, C2 |
| 2 | 1uF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C3, C5 |
| 2 | 4.7k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R7, R8 |
| 2 | 4.7u | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C13, C15 |
| 2 | KEYSW | Legshark:MXOnly-3U-ReversedStabilizers-NoLED_SmallerHole | K_65, K_77 |
| 1 | 1.5k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R5 |
| 1 | 10n | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C12 |
| 1 | 10u | acheron_Components:CP_EIA-3216-10_Kemet-I_Pad1.58x1.35mm_HandSolder | C16 |
| 1 | 51k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R1 |
| 1 | ARM JTAG | acheron_Connectors:PinHeader_2x5_P2.54mm_Vertical | J1 |
| 1 | AT24C256C-SSHL-T | acheron_Components:SOIC-8 | U3 |
| 1 | B5819W-SL | Diode_SMD:D_SOD-123 | D101 |
| 1 | Conn_01x04 | acheron_Connectors:PinHeader_1x4_P2.54mm_Vertical | J3 |
| 1 | GZ2012D601TF | Inductor_SMD:L_0805_2012Metric | FB1 |
| 1 | JM Logo | Legshark:jm_logo | H1 |
| 1 | K2-1187SQ-A4SW-06 | acheron_Hardware:K2-1187SQ-A4SW-06 | SW1 |
| 1 | KEYSW | Legshark:Legshark_MXOnly-7U-3U-ReversedStabilizers-NoLED | K_78 |
| 1 | KEYSW | MX_Only:MXOnly-1U | K_30 |
| 1 | LS Logo | Legshark:Legshark_Mask | H3 |
| 1 | MCP1700T-3302E/TT | Package_TO_SOT_SMD:SOT-23 | U2 |
| 1 | OSH | acheron_Graphics:OSH_Logo_22.5x8.5mm | H2 |
| 1 | PCM12SMTR | Legshark:Surface Mount Slide Switch SPDT | SW2 |
| 1 | Red | Legshark:LED_0603 | D102 |
| 1 | SM04B-SRSS-TB | acheron_Connectors:SM04B-SRSS-TB(LF)(SN) | T2 |
| 1 | STM32F411CEU6 | acheron_Components:STM_UFQFPN-48_LQFP-48-1EP_7x7mm_P0.5mm_HandSoldering | U1 |
| 1 | TAXM8M4RFDCET2T | acheron_Components:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | X1224WRS-04-LPV01 | Legshark:PicoEZMate-Reinforced-Alt | J2 |
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Questions
How big is the Legshark65 rev2 PCB?
It measures 285.8 × 95.3 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Legshark65 rev2 use?
210 parts, built around the STM32F411CEU6, AT24C256C-SSHL-T, MCP1700T-3302E/TT(MS) and 1N4148WT. 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 Legshark65 rev2 KiCad files?
From the jemmec/legshark repository on GitHub, at the commit this page was made from: the board is kicad-files/legshark65_rev2.kicad_pcb and its schematic kicad-files/db_rev1.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Legshark65 rev2 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).