2 layers99.8 × 70.1 mm
Cnc grbl
emavap/Grbl-Pro-V2-PCB
Grbl Board that supports 4 step motors and up too two spindles
68 parts
2 layers97 × 64 mm
Cnc grbl
emavap/Grbl-Laser-PCB1GRBL board for Laser Cutters
- Size
- 97 × 64 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 44
- Nets
- 53
- Pads
- 232
- Tracks, vias
- 531, 27
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 17 Dec 2017
- Updated
- 17 Dec 2017
Overview
Cnc grbl is an open-source printed circuit board by emavap, from the emavap/Grbl-Laser-PCB repository on GitHub. It is a 2-layer board of 97 × 64 mm with 44 parts on 53 nets, routed with 531 tracks and 27 vias.
It is built around the ATMEGA328P-AU, FT231XS-R and UA78M05IKC, with the MBR0520 among its other parts. Its parts include 11 capacitors, 11 connectors, 8 resistors, 5 ICs and 3 diodes. It belongs with the robots and motor control boards and the AVR (ATmega, ATtiny) boards of this library.
Main components
4
ATMEGA328P-AU
TQFP-32(7x7)-40℃~+85℃ 1.8V~5.5V 10bit 1KB 20MHz 23 2KB 32KB 8 Bit AVR Built-in FLASH TQFP-32(7x7) Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
FT231XS-R
SSOP-20-150mil-40℃~+85℃ 125uA 5V 8.4mA USB 2.0 USB to UART SSOP-20-150mil USB Converters ROHSFTDIUSB Converters
UA78M05IKC
TO-220-3-40℃~+125℃@(Tj) 1 25V 2V 40uV 500mA 5V 62dB@(120Hz) 6mA Fixed Over Current Protection、Over Temperature Protection、Short Circuit Protection Positive TO-220-3 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
MBR0520
SOD-123-55℃~+150℃ 20V 450mV@500mA 5.5A 500mA Independent SOD-123 Schottky Diodes ROHSJiangsu Changjing Electronics Technology (CJ)Schottky Diodes
README
README.mdThis is the Grbl-laser board that I designed to replace the chinese control board used on my laser cutter.
License
Creative-Commons 3.0 CC BY-SA
Parts
44| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 0.1uF | Capacitors_SMD:C_1206 | C1, C2, C5, C13 |
| 4 | MountingHole_4.3mm_M4_Pad_Via | Mounting_Holes:MountingHole_4.3mm_M4_Pad_Via | REF1, REF2, REF3, REF4 |
| 3 | 10K | Resistors_SMD:R_1206 | R9, R10, R12 |
| 3 | 1K | Resistors_SMD:R_1206 | R2, R3, R4 |
| 3 | 3.3nF | Capacitors_SMD:C_1206 | C3, C10, C11 |
| 2 | 100uF | Capacitors_SMD:c_elec_6.3x5.3 | C14, C16 |
| 2 | 20pF | Capacitors_SMD:C_1206 | C7, C8 |
| 2 | 680 | Resistors_SMD:R_1206 | R5, R6 |
| 2 | CONN_02X03 | Pin_Headers:Pin_Header_Straight_2x03 | P3, P4 |
| 2 | POLOLU_A4988 | ExtraFootprints:Pololu_Socket | U2, U3 |
| 1 | 16Mhz | Crystals:Crystal_HC49-SD_SMD | Y1 |
| 1 | ATMEGA328P-A | Housings_QFP:TQFP-32_7x7mm_Pitch0.8mm | IC1 |
| 1 | CTR | Pin_Headers:Pin_Header_Straight_2x03 | P11 |
| 1 | FT231XS | SMD_Packages:SSOP-20 | U1 |
| 1 | Green | LEDs:LED_1206 | D2 |
| 1 | ICSP | Pin_Headers:Pin_Header_Straight_2x03 | P1 |
| 1 | Laser | Connectors_Molex:Molex_KK-6410-03_03x2.54mm_Straight | J3 |
| 1 | Limits | Connectors_Molex:Molex_KK-6410-05_05x2.54mm_Straight | J2 |
| 1 | MBR0520 | Diodes_SMD:D_SOD-123 | D4 |
| 1 | POWER | Connectors_Molex:Molex_KK-41791-04_04x3.96mm_Straight | J1 |
| 1 | Red | LEDs:LED_1206 | D1 |
| 1 | SERIAL | Pin_Headers:Pin_Header_Straight_2x04_Pitch2.54mm | J4 |
| 1 | SWITCH | Buttons_Switches_SMD:SW_SPST_PTS645 | S1 |
| 1 | UA78M05 | TO_SOT_Packages_SMD:SOT-223 | U5 |
| 1 | USB_B | Connectors:USB_B | P5 |
| 1 | X MOT | Connectors_Molex:Molex_KK-6410-04_04x2.54mm_Straight | P8 |
| 1 | Y MOT | Connectors_Molex:Molex_KK-6410-04_04x2.54mm_Straight | P9 |
Questions
How big is the Cnc grbl PCB?
It measures 97 × 64 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Cnc grbl use?
44 parts, built around the ATMEGA328P-AU, FT231XS-R, UA78M05IKC and MBR0520. 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 grbl KiCad files?
From the emavap/Grbl-Laser-PCB repository on GitHub, at the commit this page was made from: the board is cnc-grbl.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Cnc grbl design in my own project?
Its repository states no licence, so its author keeps all rights: ask emavap before reusing the design.
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