Stratasys FDM 3D printers provide exceptional design freedom and flexibility regarding materials, build volumes, slice heights, and even soluble support materials when dealing with complex internal channels. However, it's important to consider the relationship between slice height and fine features. Depending on the nozzle diameter and available slice heights, certain wall thicknesses can be difficult (or impossible) to print reliably. To combat this, we need to understand the limitations of our machines and use that information when designing parts to print.