3D relief Brass Coin

Lay the brass coin flat on the laser bed with the marking surface facing upward.

Make sure the brass coin blank is clean and free of fingerprints, oil, or dust, as surface contamination can affect laser engraving brass coin quality. A clean surface helps create sharper character marking, clearer laser etching brass coin results, and more consistent 3D relief coin details.

Import your vector or image file into LightBurn, then adjust the placement to match the coin surface. This workflow can be used for custom brass coin designs, challenge coin laser engraving, commemorative coin artwork, souvenir coin patterns, and collectible coin blanks.

For 3D brass coin engraving, image quality has a direct impact on the final result. A depth image, such as the bee design in this project, is ideal for creating a raised 3D relief coin effect with more visible depth and texture.

For easier positioning, use a frame tool layer to outline the coin. Measure the brass coin, draw a circle that matches its shape, and place the depth image inside the circle. This helps keep the 3D design and character engraving aligned on the coin blank.

Check the parameters carefully to achieve the desired 3D brass coin engraving result.

For this project, bi-directional scanning is turned on to save time. Brass coin marking also requires high DPI, so the 3D image layer uses 1270 DPI and the character layer uses 2540 DPI. For the relief layer, choose 3D Sliced image mode to support deep engraving brass and detailed fiber laser coin engraving.

Relief laser marking may require dozens or even hundreds of passes, especially for deep 3D brass coin engraving. Do not be surprised by high pass counts. Always confirm that the settings are correct before starting.

Focus is the key to successful brass coin laser engraving. If focus is ignored, the final relief depth, character clarity, and laser etching brass coin result may not be satisfying.

Make sure the brass coin surface is properly focused before starting. You can use auto focus or manual focus. If you prefer manual focus, the focal stick must be in close contact with the coin surface.

Press the Frame button and check whether the red light shows the correct marking area. The frame should match the brass coin surface and keep the 3D relief design centered on the coin blank.

If the frame is not aligned, move the coin or adjust the design until they match. After checking, close the laser door and begin Aurora Lite’s 3D brass coin engraving process. This step is suitable for fiber laser coin engraving, challenge coin laser engraving, and custom brass coin relief projects.

Remain in the same room and continue monitoring the machine throughout the entire engraving process. Do not leave an operating laser unattended. Pause the job immediately if you notice an alarm, unusual sound, excessive smoke, abnormal odor, or unexpected material behavior. Since 3D brass coin engraving and deep engraving brass can take a long time, avoid staring directly at the marking point for too long, even with the door closed.

Once the marking is complete, allow the coin to cool for a few minutes, then carefully remove it from the laser bed. Inspect the engraving depth, character clarity, and overall consistency of the 3D relief coin.

3D metal relief marking produces a lot of powder. Clean the finished brass coin and the inside of the machine after processing. You can brush the coin under running water with a soft toothbrush. For the machine, clean the lens with 99% alcohol and a dust-free cloth, wiping in a circle from the center outward.

For a stronger visual result, you may use a copper blackening agent after the coin is fully cleaned. Follow the chemical manufacturer’s safety data sheet, ventilation requirements, PPE instructions, soaking limits, disposal guidance, and material compatibility information. After treatment, clean and polish the custom brass coin according to the chemical manufacturer’s instructions.