When working with a new metal surface, like wallets or metal business cards, it's always best to test before diving in. I’ve learned the hard way that setting power and dot duration manually based on previous experience, doesn’t always yield the best results. Each material is unique, and using trial and error can be frustrating. That’s where this handy test grid comes in! With the XTOOL F1, it’s literally a plug-and-play process. Simply download the file, frame and run the test grid. You'll have a perfect understanding of how to fine-tune your settings for any new metal surface. Save it for future projects—it’s a simple way to ensure consistency and precision every time. Test smart, not hard!