The Complete Beginner's Guide to Using LaserGRBL: Laser Cutting Software

Learn how to use LaserGRBL, a powerful free software for laser engraving and cutting. This complete beginner's guide covers setup, image preparation, G-code generation, optimal settings by material, and troubleshooting tips for perfect results with NEJE, Ortur, and other GRBL laser machines.

The Complete Beginner's Guide to Using LaserGRBL: Laser Cutting Software

Laser cutting doesn’t have to be expensive or complicated. With LaserGRBL, you can get started for free, even if you're a complete beginner. This in-depth guide walks you through everything—from installation to image preparation, engraving tips, troubleshooting, and revenue potential using just LaserGRBL.

Let’s unlock the world of laser crafting—without breaking the bank.

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1. What is LaserGRBL?

LaserGRBL is a free and open-source controller software for GRBL-based laser engravers. It's built for Windows and works especially well with affordable machines like NEJE, Atomstack, Ortur, and Eleksmaker.

Unlike paid software like LightBurn, LaserGRBL allows commercial use with no restrictions, making it perfect for creators, hobbyists, and side hustlers.

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2. What Can You Use It For?

• Engraving on wood, acrylic, leather, paper, etc.

• Simple cutting of lines and shapes

• Personalized tags, wooden signage, bookmarks, and keychains

• Customized wedding decorations and pet name tags

⚠️ Note: Not suitable for complex curved cuts or high-res photo engravings.

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3. What You’ll Need

• A GRBL-compatible laser engraver (NEJE, Atomstack, Ortur, etc.)

• Windows PC (not compatible with Mac)

• USB cable to connect your laser to PC

• LaserGRBL software: https://lasergrbl.com

• Black & white PNG or BMP image files

• Laser-friendly materials: plywood, MDF, leather, etc.

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4. Installation & Device Connection

How to Install:

1. Download LaserGRBL from the official site.

2. Run the installer (EXE or ZIP).

3. Follow default settings. Allow .NET installations if prompted.

4. Launch the program from your desktop.

Device Connection (via USB):

• Plug in your laser engraver

• Open LaserGRBL > Select the correct COM port

• Click [Connect]. If successful, device info appears at the bottom.

Connection Troubleshooting:

• Switch USB ports or use another cable

• Check Windows Device Manager

• Install NEJE or Ortur driver manually if needed

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5. Preparing Images & Generating G-code

Only black & white PNG/BMP formats are accepted.

Recommended File Format:

• Format: PNG or BMP

• Color: black on white

• Resolution: 300 DPI+

• Content: sharp, bold outlines

Using Canva:

1. Go to Canva → Create custom size (e.g. 1000×1000px)

2. Add text/designs with black color on white background

3. Disable shadows, gradients, and effects

4. Export as PNG (background NOT transparent)

Using Inkscape:

1. Load SVG

2. Go to File > Export PNG

3. Set resolution 300 DPI+

Converting Photos for Engraving:

• Use Photopea or Pixlr to:

  • Convert to black & white

  • Adjust contrast & brightness

  • Remove background using Remove.bg

🟨 For engraving, object-focused black & white photos work best. Avoid blurry or shadow-heavy images.

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6. Output Settings & Execution

Before starting, make sure:

• G-code is loaded properly

• Materials are secured with tape or clips

• Focus is manually adjusted

• Correct speed (feed rate) & laser power are set

• Air Assist ON (if available)

• Simulate the engraving path preview

Recommended Settings by Material:

Material	Engrave Speed	Engrave Power	Cut Speed	Cut Power
Plywood	2000–3000 mm/min	80–90%	200–400 mm/min	100%
MDF	1500–2500 mm/min	85–95%	150–300 mm/min	100%
Acrylic	1000–1500 mm/min	90–100%	100–200 mm/min	100%
Paper	3000–4000 mm/min	40–60%	400–600 mm/min	60–80%
Leather	2000–2500 mm/min	70–90%	200–300 mm/min	90–100%

Final Safety Checklist Before Output:

• Correct G-code loaded

• Material secured

• Focus aligned

• Power and speed checked

• Ventilation ready / Air assist on

• Preview path simulated

• No flammable materials nearby

• You’ll supervise the whole job

💡 Print this checklist and keep it by your laser station for safety.

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7. Pros of LaserGRBL

✅ 100% free with no usage limits
✅ Lightweight, runs on low-spec PCs
✅ Easy to learn for beginners
✅ Works offline—no internet needed
✅ Open-source with community support

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8. Cons

❌ No direct SVG import (convert to PNG required)
❌ Not for complex photo or curve work
❌ Windows only (no native Mac support)
❌ Interface looks dated

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9. LaserGRBL vs Other Software

Feature	LaserGRBL	LightBurn	xTool XCS	Glowforge UI
Price	Free	Paid	Free	Free (device-included)
SVG Support	No	Yes	Yes	Yes
Curve Engraving	Weak	Strong	Moderate	Moderate
Customization	High	Very High	Low	Low
OS Support	Windows	Windows/Mac	Windows/Mac	Browser-Based

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10. Common Errors & Fixes

Issue	Cause	Fix
Faint Engraving	Low power / focus off	Increase power / refocus
Image distorted	Low resolution / rotated	Use 300DPI+ and reset rotation
No device found	Port config error	Change USB port / reinstall drivers
Double engraving	G-code pass count > 1	Set Passes = 1

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11. Can You Make Money With It?

Absolutely. Many creators profit using only LaserGRBL:

• Make engraved bookmarks or keychains

• Sell PNG/SVG files + printable PDFs on Creative Fabrica

• Drive traffic via Pinterest & Instagram

The best part? No upfront software cost. Start small, grow big.

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Conclusion: Why LaserGRBL Is the Best Free Choice

LaserGRBL is the ideal free starting point for laser cutting. While it lacks advanced SVG support, its ease of use, no cost, and offline features make it an excellent choice for creators and small business owners.

Try your first project today—turn your text or design into a real-world product with LaserGRBL.