Description
CNC Shield Board:
Latest CNC Shield Version 3.0 for Arduino.
GRBL 0.9 compatible. (Open source firmware that runs on an UNO for Arduino that turns G-code commands into stepper signals)
PWM Spindle and direction pins
4-Axis support (X, Y, Z , A-Can duplicate X,Y,Z or do a full 4th axis with custom firmware using pins D12 and D13)
2 x End stops for each axis (6 in total)
Uses removable A4988 or DRV8825 compatible stepper drivers
Jumpers to set the Micro-Stepping for the stepper drivers. (Some drivers like the DRV8825 can do up to ?1/32 micro-stepping )?
Compact design
Stepper Motors can be connected with 4 pin molex connectors or soldered in place.?
Runs on 12-36V DC. (At the moment only the DRV8825 drivers can handle up to 36V so please consider the operation voltage when powering the board.)
A4988 Stepper Motor Driver:
A4988 Stepper Motor Driver Board is a breakout board for Allegro A4988 DMOS Micro stepping Driver with Translator and Overcurrent Protection; please read the A4988 datasheet carefully before using this product.
Low RDS (On) Output
Automatic current decay mode detection / selection
Mix with slow current decay modes
Synchronous rectification for low power dissipation
Internal UVLO
Crossover-current protection
3.3 and 5 V compatible logic supply
Thermal shutdown circuitry
Ground fault protection
Load short-circuit protection
Five selectable step modes: full, 1/2, 1/4, 1/8 and 1/16
Warning: Connecting or disconnecting a stepper motor while the driver is powered can destroy the driver. (More generally, rewiring anything while it is powered is asking for trouble).
UNO R3 Board for Arduino:
MCU: ATmega328
USB interface: ATmega16U2
Operating voltage: 5V
Digital I/O pins: 14 (including 6 with PWM capability)
Analog input pins: 6
I-I/O pin output current: 40mA max
3.3V output current: 150mA max
Flash memory: 32kB (0.5kB used by bootloader- included)
Static RAM (SRAM): 2kB
EEPROM: 1kB
Clock speed: 16MHz
Package Includes:
1 x CNC Shield Board
1 x UNO R3 Board for Arduino
4 x A4988 Stepper Motor Driver
4 x Heat Sink
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