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Are you looking for a unique and personalized gift for a special occasion or holiday? Engraved rings, shot glasses, or tumblers can make thoughtful and memorable presents. In this article, we will guide you through the process of engraving cylindrical objects using a laser machine.
Machines suitable for engraving cylindrical objects
Whether you are exploring new functions on your existing machine or considering purchasing a new one for this type of production, various CO2 Wattsan machines can be used for this task, including the 0503, 6090, 1290, and 1610 models. In this article, we will focus on working with the Wattsan 1610 LT, but the crucial component is the presence of a rotary device rather than the specific machine model.
Types of rotary devices
There are three main types of rotary devices: shaft, roller, and front and rear headstocks. If you plan to engrave glasses, shot glasses, cups, or rings, a rotary device with a clamping headstock is the best option. This is the type we will use in this guide. It weighs approximately 5 kg and can accommodate products with a maximum length of 850 mm. Before beginning the engraving process, the rotary device must be properly connected, and the design files must be prepared.
Step 1: preparing the design files
The engraving process starts with preparing the design files. The outcome largely depends on the product and the design chosen. There are different engraving methods, such as inscription, image engraving, and seamless (butt-to-butt) engraving, each with its own specific requirements. If using an image, it must first be converted to a black-and-white bitmap format for optimal results.
Step 2: installing the rotary device
The rotary device should be positioned parallel to the machine. In some cases, a custom stand made from plywood may be required for proper alignment. Additionally, the stepper motors on the machine and the rotary device must be identical. For example, if your stepper motors are single-phase, the rotary tool should also have a single-phase motor. Once connected, the number of pulses per revolution must be configured. If there is direct transmission from the stepper motor shaft to the chuck, you can use the number of pulses specified on the stepper motor driver. Finally, measure the diameter of the object and enter it into the appropriate field in the software.
Step 3: aligning the workpiece
When placing the object in the rotary device, ensure that the laser beam aligns precisely with the center of the rotational axis. In the software, a test function labeled “diameter” will appear. Set the speed for one complete revolution, mark the starting position, and press OK. The rotary device should make one full rotation and return to the original position. If the marks do not align, the pulse count may be incorrect, or the entered diameter may not be accurate.
Helpful tips for optimal results
- Use rubber seals when installing the workpiece to prevent slipping.
- Ensure uniformity: If the workpiece has varying diameters, position it so that the wall remains parallel to the X-axis. If necessary, place a support under the object.
- Engrave on a dry or wet surface: A wet surface can reduce roughness. Using a soapy solution or a damp cloth may improve the engraving quality.
- Avoid distortions: Check the edges for wrinkles or bubbles to achieve a smooth engraving surface.
- Experiment: Each material reacts differently to laser engraving, so testing different settings can help refine the final results.
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Engraving as a creative and business opportunity
Engraving is a precise and intricate craft that benefits from experimentation and customization. Personalized engraved products are not only satisfying to create but can also present a business opportunity. Instead of purchasing pre-engraved items, you can produce your own unique designs.
With shot glasses available at wholesale prices, laser engraving allows you to transform simple glassware into artistic, one-of-a-kind products for sale.
Conclusion
Mastering the engraving of cylindrical objects is both an art and a skill that opens up numerous creative and business opportunities. Whether you are looking to craft meaningful gifts or start a new venture, laser engraving provides a rewarding and innovative way to personalize a wide range of items. With the right equipment, technique, and a bit of experimentation, you can produce high-quality, customised engravings that stand out in both personal and commercial applications.
