Openbuilds MiniMill Lasers for Openbuilds MiniMill CNC

Opt Lasers brings innovation to your workshop with the ultimate laser solution for Openbuilds MiniMill CNC machines. Featuring a powerful 6W laser, our technology is designed to seamlessly integrate with your Openbuilds MiniMill, enhancing its capabilities and your creativity. At Opt Lasers, we're committed to redefining the world of woodworking. By offering specialized PLH3D-series Openbuilds MiniMill lasers, we cater to both ambitious professionals and passionate hobbyists, setting a new standard in precision and versatility. Our expertise ensures that you get a laser that not only fits your machine like a glove but also elevates your projects to the next level. Discover the difference with Opt Lasers and turn your vision into reality.

The Openbuilds MiniMill CNC machine, known for its compact design and exceptional capability, is a premier choice for small-scale machining, milling tasks, and intricate 3D projects. Manufactured by OpenBuilds, the MiniMill features sturdy C-Beam linear rails and lead screws, ensuring high precision with an accuracy range of approximately 0.001" to 0.003" (0.05mm to 0.10mm). Its open-source nature encourages customization and community sharing, fostering innovation and continuous improvement. Easy assembly, supported by the V-Slot Modular Framing System and Build-Along Video, makes it suitable for beginners and experienced makers alike. From dog tags to car parts, the MiniMill offers precision and creativity, making it a standout option in the market for personal and professional projects.

Benefits offered by Opt Lasers for the first time on this market.

5-year Opt Lasers Warranty
Free Shipping for Individual Customers
Lifetime Technical Support
#1 in Customer Support
30-Day Satisfaction Guarantee for Returns
Optional Collision or Laser Head Drop Insurance
Product Originating from the Laser Head Concept Creator
Made in Poland, EU

Opt Lasers Plug&Play Upgrade Kits for Openbuilds MiniMill

The highest performace and best laser kits available for Openbuilds MiniMill:

For other laser upgrades for Openbuilds MiniMill machines go to our Openbuilds MiniMill Laser Upgrade Shop Category.

Openbuilds MiniMill CNC and Opt Lasers Synergy - Openbuilds MiniMill Laser

The synergy between the Openbuilds MiniMill CNC machine and the PLH3D-XT-50 laser from Opt Lasers creates a high-performance setup for precision machining and laser engraving or cutting. The PLH3D-XT-50 laser head is distinguished by its ability to deliver exceptionally accurate and fine engravings and cuts on a wide variety of materials, including metals like stainless steel, ceramics, and soft materials. This precision is achieved thanks to the laser's microscopic beam spot size of less than 50um, which is about the diameter of a human hair, allowing for ultra-high-definition engraving with a resolution of over 500 DPI./p>

The PLH3D-XT-50 is built with integrated control electronics, ensuring minimal signal delays and precise laser output, enhancing the quality of the engravings or cuts. This, combined with the Openbuilds MiniMill's sturdy construction and precision motion control, means that users can undertake projects requiring high detail and accuracy, from intricate designs on ceramics to detailed metalwork.

Furthermore, the laser head's design features such as the High-Pressure Air Assist Nozzle and the LaserDock facilitate easier, faster, and cleaner operations, making it a practical addition to the Openbuilds MiniMill. The air nozzle speeds up the laser processing by up to 6.5 times and improves material processing quality by reducing scorch marks and ensuring cleaner cuts and engravings.

Opt Lasers' commitment to quality and customer support, offering a 5-year warranty, free shipping for individual customers, and lifetime technical support, ensures that users investing in the PLH3D-XT-50 for their Openbuilds MiniMill have a reliable tool that expands their CNC machine's capabilities significantly. This combination opens new possibilities for both hobbyists and professionals to explore detailed projects with confidence and precision.

Best Laser Engraver for Woodworking

Integrating the PLH3D-XT-50 laser head with the Openbuilds MiniMill CNC transforms it into a premier woodworking tool, unmatched in executing detailed designs and smooth cuts across diverse wood types. This laser head excels in precision, enabling the creation of both artistic and functional wood pieces with unparalleled depth, shading, and clarity adjustments. Its user-friendly design is particularly appealing to hobbyists, offering advanced woodworking capabilities without necessitating deep technical knowledge.

The PLH3D-XT-50 stands out for its adjustable, microscopic, and square beam spot, achieving widths below 50um when perfectly focused. This capability allows for extraordinary detail in rasterizing graphics and ensures consistent cutting line thickness, meaning even the smallest details are accurately reproduced according to design. With the ability to adjust the laser head's height over the material, users can modify the beam spot size up to 2mm, providing flexibility for a wide range of project sizes and complexities. This feature contributes to achieving ultra HD resolution of over 500 DPI, making the PLH3D-XT-50 the most precise laser engraver for woodworking.

Opt Lasers 6W working on Openbuilds MiniMill

Opt Lasers 6W working on Openbuilds MiniMill

Cutting & Engraving Wood with Openbuilds MiniMill CNC Laser 


The performance of laser cutting and engraving on wood using Openbuilds MiniMill Laser Upgrade Kits greatly depends on the wood's characteristics. Factors such as wood type, hardness, moisture content, and texture are crucial in determining the laser process's effectiveness. Balsa and high-quality plywood are particularly suitable for laser work due to their consistency and uniformity. High-grade plywood is advantageous for its combination of a lightweight balsa core with layers of harder wood, creating an even, defect-free surface ideal for laser tasks.

The uniformity of these woods contributes to efficient and uniform laser cutting results. However, it's important to carefully select wood, as variations in uniformity, such as denser areas in balsa or inconsistencies in plywood, can impact the efficiency and quality of laser cutting. Thus, assessing the material's consistency is vital for achieving the best laser cutting and engraving outcomes.

In essence, for optimal laser processing with the Openbuilds MiniMill Laser Upgrade Kits, choosing the right wood type that aligns with the desired outcome is key. Selecting woods like balsa and high-quality plywood, known for their suitable characteristics for laser work, can significantly enhance project results.

Compatison of the electrical design and lifespan of Opt Lasers engraving lasers versus competition

What Accessories are included in the Openbuilds MiniMill Laser Upgrade Kits?

Our laser heads are compatible with various accessories available in our offerings, providing versatility and upgrading performance options for your laser CNC upgrade kit. Each kit specifies the included accessories, ensuring clarity about what comes with your purchase.

The accessories listed below are commonly used with our laser heads:


The High-Pressure Air Assist Nozzle

High-Pressure Air Assist Nozzle

The High-Pressure Air Assist Nozzle speeds up laser cutting and engraving by up to 6.5 times, and also greatly improves the quality of the processed material. By using the High-Pressure Air Assist Nozzle, the resulting material will have noticeably higher quality and uniform and well-defined features.

The LaserDock magnetic laser

LaserDock Magnetic Docking Station

Thanks to the LaserDock equipped with the laser attachment, you can effortlessly dismantle the laser unit when you are finished engraving or laser cutting. A clean focusing lens ensures consistent optical performance during subsequent laser cutting and engraving jobs. Keeping it clean also extends its lifespan.

PLH3D-CNC Adapter

PLH3D-CNC Adapter

Our PLH3D-CNC Adapter serves as a versatile interface and safety unit connected in between a CNC machine and a high-performance PLH3D laser head. Many types of CNC machines and 3D printers with different control voltage standards and levels available on the market may be used to control the PLH3D head. The PLH3D-CNC Adapter converts all these signals to the standard compatible with the PLH3D-series laser.

Laser Safety Glasses

Laser Safety Glasses

Protect your eyes with our CE-rated 450 nm Laser Safety Glasses. Offering 50% Visible Light Transmission for clear visibility, they boast a High Optical Density (OD) rating of 7+ across the 190 nm to 540 nm range. Effectively reduce harm from diffusely reflected laser radiation and safeguard against blue laser exposure..

The High-Pressure Air Assist Nozzle

Laser Safety Window

Perfect for CNC machine enclosures, our Laser Safety Window blocks deep ultraviolet, blue, and green light, enhancing overall safety. With a rating of OD 6+ across the range of 190 to 540 nm, it provides comprehensive protection. Plus, it's available in various sizes to suit your needs.

The High-Pressure Air Assist Nozzle

Mount and Height Reference Tool

Achieve precise laser head adjustments effortlessly with our Height Reference Tool. Securely attach your laser head or docking station with the sturdy aluminum Mount, complete with all necessary screws included. Avoid hidden costs and enjoy straightforward setup.

The High-Pressure Air Assist Nozzle

Power Supply and Wiring

All necessary wiring is provided for seamless connectivity, compatible with international outlets (US, AU, and Europe). Benefit from a high-quality, low-noise power supply designed to streamline setup and enhance user experience with the Opt Lasers Kit. No hidden costs involved.

Explore Boundless Creativity: Inspiration Gallery

Visit our Inspiration page, where we showcase the possibilities offered by using our blue laser heads for Openbuilds MiniMill.

Additionally, there are videos available for viewing:

Engraving wood with PLH3D 6W by V-slot Polska
Cutting and Engraving Cardboard with PLH3D-Series Lasers