2 layers59.7 × 96 mm
OptoIsolation
ondras12345/CNC
My CNC 1610 and Stepcraft model 600 configuration and CNC-related notes
39 partsMIT
2 layers94 × 87.6 mm
CNC relays
ondras12345/CNCMy CNC 1610 and Stepcraft model 600 configuration and CNC-related notes
- Size
- 94 × 87.6 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 100
- Nets
- 112
- Pads
- 369
- Tracks, vias
- 684, 36
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 24 Jun 2020
- Updated
- 26 Aug 2026
Overview
CNC relays is an open-source printed circuit board by ondras12345, from the ondras12345/CNC repository on GitHub, published under the MIT licence. It is a 2-layer board of 94 × 87.6 mm with 100 parts on 112 nets, routed with 684 tracks and 36 vias.
It is built around the THVD1400DRL, WT32-ETH01 and 74HC165D, with the 74HC595D, LTV-847 and ESD5Z3.3T1G among its other parts. Its parts include 42 resistors, 25 connectors, 9 ICs, 8 capacitors and 6 diodes. It belongs with the robots and motor control and home automation and IoT boards of this library.
Main components
7
THVD1400DRL
SOT-583-40℃~+125℃ 1 1 1.5mA 256 3V~5.5V 500Kbps Half-Duplex Transceiver ±12kV SOT-583 RS-485 / RS-422 ICs ROHSTexas InstrumentsRS-485 / RS-422 ICsWT32-ETH01
-Ethernet ModulesWireless-tag
74HC165D
SO-16-40℃~+125℃ 1 28ns@6V,50pF 2V~6V 35MHz 500mW 74HC 8 Parallel or Serial to Serial SOIC-16 Shift Registers ROHSNexperiaShift Registers
74HC595D
SOP-16-40℃~+105℃ 1 100MHz 15ns@6V,50pF 2V~6V 74HC 8 Asynchronous clear function、Output enable Serial-to-Serial or Parallel Tri-State SOP-16 Shift Registers ROHSJSMSEMIShift Registers
LTV-847
DIP-16-30℃~+110℃ 1.2V 100mV@20mA,1mA 200mW 35V 3us 4 4us 50% 50mA 50mA 5kV 600% 6V DC Phototransistor DIP-16 Transistor, Photovoltaic Output Optoisolators ROHSLite-OnTransistor, Photovoltaic Output Optoisolators
ESD5Z3.3T1G
SOD-523-55℃~+125℃ 1 110pF 11A 14V 150W 200nA 3.3V 5V ESD IEC 61000-4-2、IEC 61000-4-4 Unidirectional SOD-523 ESD and Surge Protection (TVS/ESD) ROHSTECH PUBLICESD And Surge Protection (TVS/ESD)
0ZCF0150FF2C
2920-40℃~+85℃ 1.5A 1.5W 100A 230mΩ 2s 33V 3A 50mΩ 2920 Resettable Fuses ROHSBel FuseResettable Fuses
README
README.mdCNC
My CNC 1610 configuration and CNC-related notes
See also https://ondra.sluka.cz/projects/1610-cnc/
Software
- Grbl firmware (1.1h)
- Candle Grbl controller - no longer used
- bCNC Grbl controller
Configuration
Documentation
Links to some useful docs:
Parts
100| Qty | Value | Footprint | References |
|---|---|---|---|
| 15 | 1k | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R1, R2, R3, R4, R5, R6, R7, R27, R28, R29, R30, R31, R32, R33, R34 |
| 10 | 10k | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R8, R16, R35, R36, R37, R38, R39, R40, R41, R42 |
| 8 | 0 | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R19, R20, R21, R22, R23, R24, R25, R26 |
| 8 | Conn_02x02_Odd_Even | Connector_PinHeader_2.54mm:PinHeader_2x02_P2.54mm_Vertical | J15, J16, J17, J18, J19, J20, J21, J22 |
| 6 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4, H5, H6 |
| 5 | 100n | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C4, C5, C6, C7, C8 |
| 4 | 100 | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R12, R13, R17, R18 |
| 4 | Conn_01x03 | Connector_Molex:Molex_KK-254_AE-6410-03A_1x03_P2.54mm_Vertical | J6, J7, J8, J9 |
| 4 | ESD5Z3.3T1G | Diode_SMD:D_SOD-523 | D3, D4, D5, D6 |
| 3 | Conn_01x01 | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | J4, J11, J25 |
| 2 | 10 | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R9, R10 |
| 2 | 10u / 25V | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C1, C2 |
| 2 | 4k7 | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R14, R15 |
| 2 | 74HC165 | Package_SO:SO-16_3.9x9.9mm_P1.27mm | U8, U9 |
| 2 | 74HC595D | Package_SO:SO-16_3.9x9.9mm_P1.27mm | U4, U5 |
| 2 | Conn_01x10_Pin | Connector_PinHeader_2.54mm:PinHeader_1x10_P2.54mm_Vertical | J12, J24 |
| 2 | Conn_02x04_Odd_Even | Connector_PinHeader_2.54mm:PinHeader_2x04_P2.54mm_Vertical | J2, J3 |
| 2 | LTV-847 | Package_DIP:DIP-16_W7.62mm | U6, U7 |
| 2 | NetTie_2 | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | NT1, NT2 |
| 1 | 0ZCF0150FF2C | Fuse:Fuse_2920_7451Metric_Pad2.10x5.45mm_HandSolder | F1 |
| 1 | 120 / 0.25W | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R11 |
| 1 | 1N4007 | Diode_SMD:D_SMA_Handsoldering | D1 |
| 1 | 22u / 25V | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C3 |
| 1 | Conn_01x02_Pin | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J23 |
| 1 | Conn_01x03_Pin | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J10 |
| 1 | Conn_01x04 | Connector_Molex:Molex_KK-254_AE-6410-04A_1x04_P2.54mm_Vertical | J13 |
| 1 | Conn_01x08 | Connector_Molex:Molex_KK-254_AE-6410-08A_1x08_P2.54mm_Vertical | J14 |
| 1 | FTDI breakout | ondra:FTDI_breakout | J5 |
| 1 | Jumper_2_Open | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | JP1 |
| 1 | N7803-1PH | ondra:N78xx-xPH | U2 |
| 1 | PC-GK2.1 | Connector_BarrelJack:BarrelJack_Horizontal | J1 |
| 1 | SM712_SOT23 | Package_TO_SOT_SMD:SOT-23 | D2 |
| 1 | THVD1400DR | Package_SO:SO-8_3.9x4.9mm_P1.27mm | U3 |
| 1 | WT32-ETH01 | WS32-ETH01:WT32-ETH01 | U1 |
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Questions
How big is the CNC relays PCB?
It measures 94 × 87.6 mm and has 2 copper layers, 1.6 mm thick.
What parts does the CNC relays use?
100 parts, built around the THVD1400DRL, WT32-ETH01, 74HC165D and 74HC595D. 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 CNC relays KiCad files?
From the ondras12345/CNC repository on GitHub, at the commit this page was made from: the board is Stepcraft2-model600/relays/CNC-relays/CNC-relays.kicad_pcb and its schematic KiCAD/template/template.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the CNC relays 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).