Pointers for Laser Engraving Curved Surfaces

Engrave curved surfaces with or without a rotary attachment

Preparation for a curved surface depends on how significant the curve is and whether or not you have a rotary attachment.

For the best laser engraving results, it’s crucial that the laser stays in focus. When engraving a curved surface, the laser can start to go out of focus on the sides of the graphic because the surface begins to curve. Generally speaking, you’ve got about 1/4″ of forgiveness on either side, but once the beam goes beyond that, your image will begin to fade as the laser goes out of focus.

For items with a significant curve, or products that are cylindrical, such as a wine glass, it’s ideal to use a rotary attachment that allows the laser beam to fire as the item rotates.

For those without a rotary, there are specialty focal lenses that allow for better engraving over more curved areas. Epilog’s 4″ lens, for example, produces a focused beam over a longer vertical distance, which makes it ideal for engraving items with a larger curve like these pint glasses.

Keep in mind, however, that since the laser still isn’t running over the entire surface at the same focal point as it would with a rotary, you’ll be somewhat limited in your design and placement. The pint glasses in the image above, for example, were done using a 4″ lens, but you’ll notice the logo primarily stays toward the center of the glass.


Amy Dallman

Epilog Laser

Amy Dallman is the marketing communications specialist for Epilog Laser. In this role, she creates a variety of content including blog posts, sample club instructions, eNewsletters, and more.

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