Best 3D Printer Bed Surface: PEI vs Glass vs Garolite For most people printing PLA, PETG, and ABS, a textured PEI spring steel sheet is the best bed surface you can buy right now. It delivers reliable adhesion while the bed is hot, releases prints almost effortlessly once it cools, and the flexible steel makes…
A perfectly level bed means the nozzle maintains the same small gap across every point of the build surface—not that the bed is literally horizontal to the ground. The goal is a consistent first-layer height, typically between 0.1 mm and 0.2 mm depending on your nozzle size and layer height settings, so filament squishes evenly…
If your first layer won’t stick, peels up mid-print, or looks like a frayed rope instead of a smooth ribbon, your Z-offset is almost certainly wrong. Z-offset is the vertical distance between the nozzle tip and the print surface at Z=0, and a calibration error of just 0.05 mm can turn a reliable printer into…
A first layer that won’t stick is almost always one of four failure patterns: the filament never grabs the bed at all, the initial lines go down but peel up immediately, corners and edges lift mid-print, or the whole print breaks free partway through. Each pattern points to a different root cause, and guessing wrong…