Laser Cutting - Acrylic Piano Model

Introduction

With the precision and power of our Thunder Bolt laser machine, creating your own acrylic piano model is easier—and more fun—than you think. This tutorial walks you through each step, from laser-cutting perfectly polished pieces to assembling them into a flawless, crystal-clear structure. Whether for home décor, gifting, or simply exploring new design ideas, this tutorial is the perfect place to start.

Machine Used

Thunder Bolt 30W
See more details about this machine→

Material Needed

3mm Acrylic

Settings

Laser Cutting
Speed:10mm/s
Max Power:80%
Min Power:5%
Passes:1

Before your work begins

Step 1: Prepare and place the Acrylic Sheet on the Work Table

Start by peeling off the protective film from the top surface of the acrylic sheet—the side that faces the laser. This prevents burn marks or smoke stains from forming on the visible surface during cutting. You can leave the bottom film on to protect the underside while it rests on the workbed. Once ready, place the acrylic flat on the laser cutter’s bed and secure it with pins or magnets.

Tips:

There are three common types of pins: T-shaped, L-shaped, and F-shaped. A special use for F-shaped pins is clamping up the plywood to prevent burn marks. When using pins or magnets, pay attention to their height. If they’re too tall, the machine’s sensor or laser head could collide with them and cause damage.

3 common types of pins

F-shaped pin usage

Sensor hits a too high pin

Step 2: Import the File and Check the Settings

Open your preferred laser software (I use LaserMaker) and import the piano model design file. Adjust the size and layout as needed, making sure the designs are evenly spaced to make the most of your acrylic sheet.
For the laser cutting layers, pay extra attention to the minimum power setting. If the min power is too low, it will cause the cutting corners will not cut through; if the min power is too high, the laser cutting will be bad at the corners.

Step 3: Focus Your Laser Machine

Accurate focusing is critical for achieving smooth, clean cuts on acrylic. The Thunder Bolt offers two focusing methods:
·Auto Focus: With one click, the laser head automatically adjusts to the optimal focal distance. This is fast and convenient for flat materials like acrylic sheets.
·Manual Focus: For more control or when working with uneven materials, use the focus stick. Lower or raise the laser head until the focus stick stands perfectly vertical against the acrylic surface—this indicates the correct distance.
Tip: If your material is slightly warped or not perfectly flat, manual focus is recommended for more precise results.

Auto focus

Manual focus

Step 4: Frame the Design and Start Laser Cutting

Before starting the job, run the frame function(also called border) in your software. The laser head will trace the outline of the design with a visible guide light. This helps confirm that the design fits within your acrylic sheet and avoids wasting material. Once everything is adjusted, simply hit ‘Start’ to begin laser cutting the acrylic with the Thunder Bolt.

Step 5: Monitor the Laser Cutting Process

Monitor the job as it runs—watch for excessive smoke, movement of the acrylic sheet, or any warning alarms. Never leave the laser unattended while it’s operating.
While observing, remember that the laser beam is extremely powerful. Even with the protective lid closed, avoid staring directly at the marking spot for too long. A quick glance to check progress is fine, but prolonged gazing should be avoided for safety reasons.

Step 6: Clean the Acrylic

When the job is done, wait a few seconds to let any fumes clear before opening the lid. Carefully remove the laser-cut piano pieces from the bed. If the protective film is still on the acrlic, peel it off to reveal the clean acrylic surface. For a flawless finish, gently wipe away any residue along the edges with a soft cloth or rinse the acylic with mild soap and water.
If you’d like to elevate the look even further, consider adding a touch of food-safe paint to the acrylic—this can give your model a more decorative, polished appearance while still keeping them safe to use.

Step 7: Complete the laser cutting

Once assembled, step back and admire your miniature acrylic piano. Whether clear and modern, or colored for a playful touch, it’s a beautiful piece that reflects both craftsmanship and creativity.

Come and Try!

My acrylic piano is finished—how about yours? With just a laser cutter, a sheet of acrylic, and a bit of patience, you can create a miniature masterpiece that’s uniquely your own. I believe you can make an even better version—so grab your design file, start your laser, and let’s see your piano come to life! 🎹