🚀 Hybrid Hobbies: First Impressions of the Opt Lasers XT 50 on the LongMill CNC

In the world of CNC routing, the LongMill machine has been a fantastic foundation for makers. However, with Scienci Labs no longer offering a dedicated laser attachment, there's been a noticeable gap for enthusiasts seeking a true hybrid machine—one that seamlessly transitions from robust routing to detailed laser engraving and cutting.

I recently got my hands on a promising solution to bridge this gap: the Opt Lasers XT 50 laser module. Sent to me by Opt Lasers for an honest evaluation (full transparency: I didn't pay for it), my primary goal for this first look was simple: How easy is it to set up and get running?

Here's my initial take on whether this is the laser attachment we've been waiting for.

📦 Unboxing and Initial Setup: A Pleasant Surprise

The first indicator of a quality product is often the packaging, and the XT 50 did not disappoint. The packaging and accessories were well-organized and conveyed a sense of premium quality.

Attaching the laser module to my LongMill CNC (an MK1) was straightforward. The kit includes two mounting brackets, and I quickly found the one specifically designed for the LongMill. It was a matter of taking off the router bracket, securing the laser module to the provided plate using four screws, and then attaching the whole assembly to the router carriage using the two original router screws.

Honestly, the mechanical setup was nearly effortless. I had the laser module mounted in under 30 minutes. The inclusion of various screws in different sizes was a thoughtful touch, ensuring compatibility regardless of my mounting needs.

⭐ Setup Verdict: The Opt Lasers XT 50 is essentially plug-and-play on the physical side. If you can change out your router bit, you can install this laser.

⚡ Wiring and Power: Simple Connections

The wiring was just as simple as the mechanical attachment. The cables are all pre-attached and keyed, eliminating any confusion about which plug goes where.

1. A gray cable connects the laser module to the Opt Lasers adapter/controller.
2. A separate wire connects the adapter to the LongBoard (the LongMill control board). This is the only part that requires a screwdriver to secure the terminals, connecting to the Spin PWM and Ground pins.

With the wires loosely twist-tied to the cable track for a quick test, and the power supply connected, I turned the key. The unit powered up immediately, the fan kicked on, and a successful first power test was complete.

💻 Software Integration: LightBurn and First Firing

The real test of any laser is getting it to actually fire. For this, I turned to LightBurn—the industry-standard software for laser engraving and cutting.

If you're already familiar with VCarve or other CNC software, the learning curve for LightBurn is minimal. I quickly set up the basic parameters to test the Opt Lasers XT 50.

The Moment of Truth

Using the provided focal point tool, I carefully lowered the laser until the tool rested flat against a scrap piece of 1/8" birch plywood.

With my safety goggles on and the machine armed, I ran a simple circle outline in LightBurn.

✅ Result: A crisp, clear engraved circle immediately appeared.

I followed up with a more intricate line-engraving test and then a full raster engraving. Even without perfectly tuning the settings—which are critical for getting the best results (and will be covered in future posts)—the results were stunningly crisp and precise.

The 6-watt XT 50 boasts very high-precision specifications, and its performance right out of the box clearly demonstrated that capability.

✅ Final First Impression: A Definite Thumbs Up

My main question was: Is this laser worth recommending?

Based on this initial setup and test, the answer is a resounding YES.

• Ease of Setup: The mechanical and wiring setup is incredibly user-friendly and can be completed in well under an hour.
• Performance: The initial test fires and engravings were high-quality, suggesting excellent precision once the settings are fully dialed in.
• The Hybrid Advantage: This module successfully transforms the LongMill into the hybrid CNC/Laser machine that many makers are looking for.

While the software settings (specifically in LightBurn and Grbl/g-code) will take a little longer to optimize, the fact that I was engraving successfully on the first attempt speaks volumes about the plug-and-play potential of the Opt Lasers XT 50.

I'm incredibly excited to explore this module further, dial in the settings for maximum clarity, and start on some bigger projects. Opt Lasers also offers larger modules, including a powerful 45-watt version capable of cutting thicker materials—a tantalizing prospect for future workshop expansion!

Did you find this quick review helpful? Are you looking to add laser capability to your LongMill or other CNC? Let me know in the comments below!

The LaserDock PRO option turns your CNC into a true hybrid setup. It lets you detach and reconnect the laser in just seconds, with all the connections sealed and protected. No wrenches, no screwdrivers — just a quick swap when you’re ready to switch back to your router.