4-Axis CNC Router Kit with ESP32 + Stepper Motor
4-Axis CNC Router Kit with ESP32 — Build Your Own Precision Milling Machine
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Take your prototyping and fabrication skills to the next level. This kit delivers everything required to build a fully functional 4-axis CNC router driven by an ESP32 running GRBL firmware — capable of milling PCBs, wood, acrylic, and even soft aluminum. Precision motion, relay-based spindle control, and full G-code compatibility make it a serious tool for engineering projects and final-year demonstrations.
What You'll Build
You’ll assemble a rigid 4-axis CNC platform with 500 mm linear rails, GT2 belt drives, and NEMA 23 stepper motors. The flashed ESP32 interprets standard G-code from any CAM software, controlling the spindle on/off via a relay. The result is a production-grade desktop mill that builds PCBs and mechanical parts, right in your lab.
What You'll Learn
- Flashing and configuring GRBL firmware on ESP32 for multi-axis motion control
- Tuning DM542 stepper drivers for microstepping and current optimization
- Generating G-code toolpaths from CAD/CAM tools and executing them in real time
- Integrating relay-based spindle control and emergency stop safety logic
Kit Contents
| Component | Quantity |
|---|---|
| ESP32 Dev Board | x1 |
| NEMA 23 Stepper | x4 |
| DM542 Driver | x4 |
| 24V 10A PSU | x1 |
| 5V Relay Module | x1 |
| 0.96in OLED | x1 |
| 100nF Caps | x15 |
| M3 Bolts+Nuts | x30 |
| Linear Rail 500mm | x4 |
| GT2 Belt 2m | x4 |
| PCB Prototype Board | x3 |
| DIN Rail Enclosure | x1 |
| Soldering Iron | x1 |
| Solder Wire | x1 |
Why Buy This Kit Instead of Sourcing Parts Separately
| Factor | Sourcing Separately | Compoden Kit |
|---|---|---|
| Compatibility checks | You verify every part | Pre-tested as a system |
| Build support | Forums and scattered tutorials | AI companion trained on this exact project |
| Time to first working build | Days of debugging | Hours, with step-by-step guidance |
| Shipping coordination | Multiple sellers, multiple delays | One shipment from Bengaluru in 3-5 days |
Who This Kit Is For
Engineer students in B.Tech ECE, EEE, or mechanical streams tackling capstone projects, Smart India Hackathon participants who need rapid PCB prototyping, and research scholars at IIT, NIT, VIT, and BITS Pilani. It’s also ideal for ATL Tinkering Lab mentors introducing advanced fabrication to senior secondary students comfortable with basic electronics and coding.
Built and Backed by Compoden
Every Compoden kit ships with an AI build companion trained on this exact project — accessible via a QR code on the box, with WhatsApp and email backup. We've spent 10 years building projects for makers, schools, and institutions across India. If a part fails because of a manufacturing defect, replace it free within 7 days.
What if I get stuck during the build?
Scan the QR code inside the box to launch your AI build companion; it knows every step and common pitfalls. You can also reach our WhatsApp support line for human assistance within 12 hours.
Can I mill aluminum with this kit?
Yes, the NEMA 23 motors and rigid linear rails can handle soft aluminum at shallow depths and moderate feeds. Use a carbide end mill and ensure proper chip evacuation.
Is this compatible with Fusion 360 for G-code generation?
Absolutely. The GRBL-ESP32 accepts standard G-code; you can post-process directly from Fusion 360 using the GRBL post-processor.
What safety precautions should I take?
Always wear safety glasses, tie back long hair, and use an emergency stop circuit. The kit includes a relay for spindle control but you must wire a dedicated e-stop button.
Do I need prior CNC experience?
Basic electronics and coding knowledge is expected. If you’ve built an Arduino project and understand G-code coordinates, you can succeed with the AI companion’s guidance.
GRBL-ESP32 drives four NEMA23 axes. Spindle relay controlled. Full G-code support for CNC milling.
What's in this kit
- ESP32 Dev Board
- NEMA 23 Stepper x4
- DM542 Driver x4
- 24V 10A PSU
- 5V Relay Module
- 0.96in OLED
- 100nF Caps x15
- M3 Bolts+Nuts x30
- Linear Rail 500mm x4
- GT2 Belt 2m x4
- PCB Prototype Board x3
- DIN Rail Enclosure
- Soldering Iron
- Solder Wire
Choose your assembly option:
- Soldering Kit — 25W soldering iron, 60/40 solder wire, flux, and small perfboard for permanent assembly.
- Breadboard Combo — 800-point full-size breadboard with 65-piece jumper wire pack for solderless prototyping.
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Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items