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ATtiny85 Arduino-enabled Mini USB Dev Board
Original price was: ₹250.00.₹200.00Current price is: ₹200.00.
MEPUNO ROBOT CONTROLLER BOARD
Original price was: ₹1,550.00.₹1,500.00Current price is: ₹1,500.00. inc. GST
Arduino CNC Shield v3 Engraving Machine/3D Printer/A4988 driver GRBL compatible
Original price was: ₹500.00.₹400.00Current price is: ₹400.00.
- Coolant enable
- Uses removable Pololu A4988 compatible stepper drivers. (A4988, DRV8825, and others) (Not Included)
- 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 Pololu DRV8825 drivers can handle up to 36V so please consider the operation voltage when powering the board.)
- Please note that this is an unassembled kit and needs soldering.
- Latest Arduino CNC Shield Version 3.10
- GRBL 0.9 compatible. (Open source firmware that runs on an Arduino UNO 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)
Description
This board functions as a driver expansion board specifically for engraving machines, 3D printers, CNC. This latest expansion board is designed from Arduino CNC Shield Version 3.10. This board consists of a total of four slots and thus can drive four A4988 stepper motors.
The A4988 is a complete microstepping motor driver with a built-in translator for easy operation. These are designed specifically to operate bipolar stepper motors in full-, half-, quarter-, eighth-, and sixteenth-step modes, with an output drive capacity of up to 35 V and ±2 A.  It operates in Slow or Mixed decay modes by the presence of a fixed off-time current regulator. Each stepper motor only needs two IO ports. In other words, six IO ports can be well managed for three stepper motors. It is capable of supporting 4-Axis X, Y, Z, A-Can duplicate X, Y, Z or does a full 4th axis with custom firmware using pins D12 and D13. Moreover, it provides internal synchronous rectification control circuitry, thereby improving the pulse width modulation (PWM) power consumption during operation.
In this board, Jumpers are provided to set the Micro-Stepping for the stepper drivers. In certain cases, some drivers like the DRV8825 can do up to 1/32 micro-stepping. It is GRBL 0.9 compatible board, which is an Open source firmware that runs on an Arduino UNO that turns G-code commands into stepper signals. GRBL controller designed as a no-compromise, high-performance, low-cost alternative to parallel-port-based motion control for CNC milling/engraving/3D printer. It operates on a vanilla Arduino (Duemillanove/Uno) as long as it sports an Atmega 328. The GRBL controller written in highly optimized C utilizes every clever feature of the AVR chips to achieve precise timing and asynchronous operation
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