---
product_id: 57659460
title: "3D Printer CNC Controller Kit for Arduino, Longruner GRBL CNC Shield UNOR3 Board RAMPS 1.4 Mechanical Switch Endstop DRV8825 A4988 GRBL Stepper Motor Driver with Heat Sink Nema 17 Stepper Motor LKB02"
brand: "longruner"
price: "43.66 OMR"
currency: OMR
in_stock: false
reviews_count: 8
url: https://www.desertcart.com.om/products/57659460-3d-printer-cnc-controller-kit-for-arduino-longruner-grbl-cnc
store_origin: OM
region: Oman
---

# 12-36V wide voltage range 4-axis CNC control Heat sink cooled drivers 3D Printer CNC Controller Kit for Arduino, Longruner GRBL CNC Shield UNOR3 Board RAMPS 1.4 Mechanical Switch Endstop DRV8825 A4988 GRBL Stepper Motor Driver with Heat Sink Nema 17 Stepper Motor LKB02

**Brand:** longruner
**Price:** 43.66 OMR
**Availability:** ❌ Out of Stock

## Summary

> ⚙️ Elevate your CNC game with precision and power — don’t get left behind!

## Quick Answers

- **What is this?** 3D Printer CNC Controller Kit for Arduino, Longruner GRBL CNC Shield UNOR3 Board RAMPS 1.4 Mechanical Switch Endstop DRV8825 A4988 GRBL Stepper Motor Driver with Heat Sink Nema 17 Stepper Motor LKB02 by longruner
- **How much does it cost?** 43.66 OMR with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.om](https://www.desertcart.com.om/products/57659460-3d-printer-cnc-controller-kit-for-arduino-longruner-grbl-cnc)

## Best For

- longruner enthusiasts

## Why This Product

- Trusted longruner brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Complete Endstop Safety:** Includes 6 mechanical switch endstops ensuring precise axis limits and fail-safe operation.
- • **Advanced Stepper Drivers:** Equipped with 4 A4988 drivers featuring thermal shutdown and overcurrent protection.
- • **Precision 4-Axis Mastery:** Seamlessly control X, Y, Z, and a customizable 4th axis for complex projects.
- • **Robust Power Flexibility:** Operates efficiently across a broad 12-36V DC range to suit diverse setups.
- • **Plug & Play Arduino UNO R3:** Integrated ATmega328 MCU with USB interface for smooth, reliable connectivity.

## Overview

The Longruner 3D Printer CNC Controller Kit combines the latest CNC Shield V3.0 with an Arduino UNO R3 board and four A4988 stepper motor drivers, all cooled by heat sinks. Supporting up to 4 axes and running on a versatile 12-36V DC power supply, it offers robust, precise control for advanced CNC and 3D printing projects. With built-in mechanical endstops and compatibility with DRV8825 drivers, this kit is engineered for professional-grade performance and reliability.

## Description

CNC Shield Board: Latest CNC Shield Version 3. 0 GRBL 0. 9 compatible 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) Coolant enable Compatible with A4988 or DRV8825 stepper driver Runs on 12-36V DC UNOR3 Board: 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: 32 kB (0. 5kB used by bootloader - included) Static RAM (SRAM): 2 kB EEPROM: 1 kB Clock speed: 16MHz A4988 Stepper Motor Driver: A4988 Stepper Motor Driver Board is a breakout board for Allegro's A4988 DMOS Micro stepping Driver with Translator and Overcurrent Protection; 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). Package Contents: 1 x CNC Shield Board 1 x UNOR3 Board 4 x A4988 Stepper Motor Driver 4 x Heat Sink

Review: No issues with mixed Pi3's and Pi2's - This thing is perfect and works great with a mixture of Pi2's and Pi3's, including enough space for my heatsinks! It looks fantastic on my desk and I absolutely love it!
Review: Well thought out & user friendly product. Even comes with a case & tweezers - Easy to assemble, well packaged, and sturdy. Perfect solution for storing your raspberry pi cluster. - Thick acrylics = sturdy - Packaged well Each acrylics were protected by vinyls to keep them scratch free during the shipping process - Tweezers The tweezer makes it so much easier when assembling using small parts - Organize case for small parts This was a pleasant surprise; great way to keep all my necessary parts in place - The pictured instruction for easy & simple assembling - Totally customizable I wanted to add more layers for my project; you could buy more to add layers to stack 4+ Highly recommend this product for anyone who has been looking for a perfect solution to store/stack raspberry pi cluster.

## Features

- Latest CNC Shield Version 3. 0 For Arduino.
- Arduino UNO R3 Board, MCU: ATmega328, USB interface: ATmega16U2.
- PWM spindle and direction pins. 4-Axis support. Runs on 12-36v DC.
-  2 x end stops for each axis (6 in total).
-  4PCs A4988 stepper motor driver with radiator.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B077D4J3M5 |
| Brand | Longruner |
| Customer Reviews | 4.6 4.6 out of 5 stars (24) |
| Date First Available | November 12, 2017 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 10.9 ounces |
| Item model number | LK75-US |
| Manufacturer | Longruner |
| Package Dimensions | 8.58 x 7.24 x 1.26 inches |

## Images

![3D Printer CNC Controller Kit for Arduino, Longruner GRBL CNC Shield UNOR3 Board RAMPS 1.4 Mechanical Switch Endstop DRV8825 A4988 GRBL Stepper Motor Driver with Heat Sink Nema 17 Stepper Motor LKB02 - Image 1](https://m.media-amazon.com/images/I/81OW-w12GrL.jpg)
![3D Printer CNC Controller Kit for Arduino, Longruner GRBL CNC Shield UNOR3 Board RAMPS 1.4 Mechanical Switch Endstop DRV8825 A4988 GRBL Stepper Motor Driver with Heat Sink Nema 17 Stepper Motor LKB02 - Image 2](https://m.media-amazon.com/images/I/81XTcKU3XaL.jpg)
![3D Printer CNC Controller Kit for Arduino, Longruner GRBL CNC Shield UNOR3 Board RAMPS 1.4 Mechanical Switch Endstop DRV8825 A4988 GRBL Stepper Motor Driver with Heat Sink Nema 17 Stepper Motor LKB02 - Image 3](https://m.media-amazon.com/images/I/910dcDryWyL.jpg)
![3D Printer CNC Controller Kit for Arduino, Longruner GRBL CNC Shield UNOR3 Board RAMPS 1.4 Mechanical Switch Endstop DRV8825 A4988 GRBL Stepper Motor Driver with Heat Sink Nema 17 Stepper Motor LKB02 - Image 4](https://m.media-amazon.com/images/I/91Asu+koLaL.jpg)
![3D Printer CNC Controller Kit for Arduino, Longruner GRBL CNC Shield UNOR3 Board RAMPS 1.4 Mechanical Switch Endstop DRV8825 A4988 GRBL Stepper Motor Driver with Heat Sink Nema 17 Stepper Motor LKB02 - Image 5](https://m.media-amazon.com/images/I/91PqAMkZ9NL.jpg)

## Questions & Answers

**Q: Will this fit 4 pi zero w boards? Someone said the bottom wouldn't take one.**
A: Yes, 4 raspberry pi zeros will fit. All raspberry pi models on all levels are secured with 4 nylon mounting screws, the one exception being the bottom level for pi zeros which utilize 3 mounting screws.

**Q: Fits raspberry pi 3 b+ (bee-plus) motherboard ?**
A: Yes

**Q: Can it be separated into two stacks? meaning that using two stacks of two pis each.**
A: It can be shortened to hold 1, 2, or 3 Pi’s if desired, but not into two separate stacks.

## Customer Reviews

### ⭐⭐⭐⭐⭐ No issues with mixed Pi3's and Pi2's
*by N***E on September 3, 2018*

This thing is perfect and works great with a mixture of Pi2's and Pi3's, including enough space for my heatsinks! It looks fantastic on my desk and I absolutely love it!

### ⭐⭐⭐⭐⭐ Well thought out & user friendly product. Even comes with a case & tweezers
*by Y***T on January 23, 2018*

Easy to assemble, well packaged, and sturdy. Perfect solution for storing your raspberry pi cluster. - Thick acrylics = sturdy - Packaged well Each acrylics were protected by vinyls to keep them scratch free during the shipping process - Tweezers The tweezer makes it so much easier when assembling using small parts - Organize case for small parts This was a pleasant surprise; great way to keep all my necessary parts in place - The pictured instruction for easy & simple assembling - Totally customizable I wanted to add more layers for my project; you could buy more to add layers to stack 4+ Highly recommend this product for anyone who has been looking for a perfect solution to store/stack raspberry pi cluster.

### ⭐⭐⭐⭐⭐ Great set!
*by J***B on January 20, 2018*

Arrived quickly and in perfect condition. This set looks great, instructions were clear, and very easy to assemble. Can't wait to use it!

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*Product available on Desertcart Oman*
*Store origin: OM*
*Last updated: 2026-01-29*