### Overview of LMD Printing Technique The post discusses the Laser Metal Deposition (LMD) technique in metal 3D printing, highlighting its potential benefits, including reduced material waste and near-forging strength. However, user comments reveal skepticism regarding its novelty and practical applications due to the inherent limitations of surface quality and machining needs. ### Expert Opinions and Concerns - Many users point out that while LMD shows promise, the technology is not entirely new; Norsk Titanium has been using similar wire-feed methods for years. - Concerns about surface quality persist, especially for fatigue-critical components in aerospace applications. - Questions regarding the process's speed and the strength of materials produced have been raised, with comments asserting that current print times are impractical for commercial applications. - Users reference the costs associated with LMD systems relative to traditional machining methods, arguing that, without significant improvements in speed and efficiency, the method may not be commercially viable. ### Opportunities and Applications - If LMD could be adapted for aerospace-grade aluminum lithium alloys, it may enable unique designs without excessive material waste. - Users suggest that while the technology might not yet be suitable for aerospace flight components, it could find utility in prototyping or creating non-structural equipment that does not require high precision.