In this video I put the new ACMER P3 through a full month of real-world testing to see if the Core-XY hype actually translates into better laser work. This is a fully enclosed diode machine that can be configured up to 48W, and I ran it across a pretty wide spread of materials—wood, acrylic, stone, leather, and stainless—so you can get a feel for what it’s good at and where the limits are. I break down cutting and engraving performance, the practical speed you can expect from the Core-XY motion system, and how consistent the results are when you’re doing longer jobs. I also dig into the camera workflow and how accurate it is for placement, how well the air assist helps with cut quality and reducing char, and whether the enclosure features actually make the machine easier (and cleaner) to live with. If you’re trying to decide whether the P3 is worth the money, or you’re comparing 24W vs 48W vs the 2‑in‑1 diode/IR option, this review is meant to give you the details that matter before you buy.