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Laser Features
Magnetic Linear Encoder

Engineered for Exceptional Accuracy & Repeatable Results

Engraving speeds up to 120 inches per second (IPS) with this top-end motion control system

The Heart of Precision
Magnetic Linear Encoders & Servo Motors in the Epilog Fusion Ascent

When it comes to commercial-grade laser engraving and cutting, speed often takes center stage. The Epilog Fusion Ascent series is built to push performance further, delivering engraving speeds up to 120 inches per second (IPS). But raw speed without absolute control is a recipe for ruined materials, blurry graphics, and lost time.

To harness that incredible momentum and translate it into flawless, profitable output, a machine needs an exceptionally intelligent motion control system. The unsung hero of that system—and the key to the Fusion Ascent’s uncompromising accuracy—is the magnetic linear encoder.

Working quietly behind the scenes, linear encoders ensure that every micro-movement of the laser carriage is perfectly calculated, allowing your business to produce the highest quality engravings at maximum production speeds.

What is a Linear Encoder?

In simple terms, a linear encoder is a high-precision sensor paired with a microscopic scale that reads the exact physical position of the laser carriage in real-time.

Think of it as a highly advanced GPS system exclusively for your laser head. Instead of guessing where the carriage should be based on how much the drive motor has turned, the linear encoder knows exactly where the carriage is on the X-axis down to the fraction of a millimeter. It constantly feeds this precise location data back to the machine’s control board, ensuring the laser fires at the exact position required.

Key Benefits:

  • Exceptional Positioning Accuracy
  • Consistent Repeatability
  • Improved High Speed Performance

The Technical Edge
Magnetic Linear Encoder & Servo Motors

Magnetic Linear Encoder

By utilizing magnetic linear encoders, the Fusion Ascent measures the actual, physical movement of the laser head itself and triggers the laser in the perfect position. Unlike other systems, if a motor slips or a belt stretches, the magnetic linear encoder and laser timing remain unaffected, and the laser fires correctly in real time to maintain our high-quality engraving. With Epilog’s advanced encoder technology delivering industry-leading precision and accuracy, you will consistently deliver flawless alignment and the highest-detailed engraving to every single one of your customers.

illustration magnetic linear encoder
Sensor Motion
Magnet Readhead (Moving)
Signal Cable
Magnetic Linear Encoder (Static)
fusion ascent 12, 24, and 36 laser machines

Why the Fusion Ascent Demands Magnetic Linear Encoders

Building a laser that can keep up with the demands of modern fabrication shops requires engineering that goes beyond the status quo. Here is why linear encoders are a non-negotiable feature in the Fusion Ascent.

Unleashing the 120 IPS Engraving Speed

Physics dictates that when a laser carriage moves at 120 IPS, momentum and inertia are massive. To engrave at these speeds without losing quality, the machine’s brushless DC servo motors require continuous, hyper-accurate feedback. The linear encoders provide this data stream instantaneously, allowing the motors to accelerate, decelerate, and change direction with flawless timing.

Eradicating Belt Stretch and Backlash

In high-volume production environments, even the highest quality Kevlar belts can experience micro-stretching, and pulleys can develop slight backlash. Linear encoders bypass this mechanical wear entirely. Because the encoder reads the carriage position independently of the drive belts, the physical condition of the belt does not dictate the accuracy of the engraving.

Real-World Benefits
for Your Laser Business

Technical specifications only matter if they improve your bottom line. The integration of linear encoders in the Fusion Ascent translates directly into tangible business advantages:
  • Micro-Detail at Max Speed
    You no longer have to sacrifice speed for quality. The magnetic linear encoder and servo motor system allows you to engrave incredibly small 6-point fonts or intricate, photorealistic images without having to slow the machine down.
  • Perfect Repeatability
    Whether you are running a single custom jig or batching 500 identical parts, the real-time positioning guarantees that the 500th piece will look exactly as sharp as the first.
  • Reduced Material Waste
    Misaligned cuts, blurred lines, and mechanical drift are virtually eliminated, meaning fewer scrapped materials and a higher profit margin per job.
  • Less Maintenance Downtime
    Because the system automatically compensates for minor mechanical wear via the encoder scale, the machine requires less frequent manual calibration, keeping your system online and producing.

The Fusion Ascent Motion Control Ecosystem

Linear encoders do not operate in a vacuum. They are a critical component of a much larger, fully integrated ecosystem inside the Fusion Ascent. They work in perfect harmony with:
  • Brushless DC Servo Motors: Providing the raw power and rapid response times required to hit top speeds.
  • The Fusion IRIS™ Camera Positioning System: Giving operators a real-time, on-screen view of the workbed for drag-and-drop artwork placement.
  • Robust Steel Bearing Systems: Delivering smooth, rigid, and frictionless movement across the entire work area.

FAQ’s

You’ve got questions, we got answers.

What makes Epilog’s motion control system better than other laser engravers?

Most standard laser systems on the market rely on older rotary encoders that only track how many times the motor spins, leaving substantial room for mechanical error. Epilog features a premium,  motion control system powered by magnetic linear encoders and servo motors. By tracking the laser head’s actual position in real time, Epilog ensures unmatched accuracy that optical-only rotary encoder systems simply cannot match.

Why does the Fusion Ascent use linear encoders instead of rotary encoders?

Rotary encoders calculate where the laser carriage is based on motor math, failing to account for physical variables like belt stretch, pulley backlash, or mechanical wear over time. Epilog’s linear encoders act like a dedicated, high-precision GPS for the laser head. They read the exact physical location on the X axis down to a fraction of a millimeter, instantly adjusting any discrepancies in real-time.

How does Epilog achieve 120 IPS engraving speeds without sacrificing quality?

At an incredible 120 inches per second (IPS), momentum and inertia are massive challenges for lesser machines. Epilog pairs its magnetic linear encoders with high-performance brushless DC servo motors. This ecosystem provides an instantaneous, continuous data stream that allows the motors to accelerate, decelerate, and change direction with flawless laser timing—delivering crisp micro-details even at maximum speeds.

Will the machine lose accuracy as the drive belts wear or stretch over time?

Not with an Epilog. In high-volume production environments, even premium Kevlar or steel cord belts can experience micro-stretching, which causes blurring and drift on standard machines. Because Epilog’s linear encoders read the carriage position independently of the drive belts, physical belt wear is completely bypassed. The machine automatically compensates for minor mechanical wear, maintaining factory-level precision year after year.

Can Epilog machines handle intricate details, like small text, at maximum production speeds?

Yes. Thanks to the real-time feedback from our magnetic linear encoder system, you no longer have to choose between speed and quality. The Fusion Ascent can effortlessly engrave incredibly small 6-point fonts or intricate, photorealistic imagery at maximum production speeds without any blurring, ghosting, or distortion.

Experience Uncompromising Accuracy

The motion control system in the Epilog Fusion Ascent was designed for businesses that refuse to compromise quality, even at the highest production speeds. With magnetic linear encoders guiding every pass, you can trust your machine to deliver flawless precision, job after job.

Ready to see the precision of the Fusion Ascent in action?

Book a Virtual Demo