Layer Adhesion
Layer adhesion is the bond strength between consecutive deposited layers in a 3D printed part, determining the part's structural integrity in the Z-axis (vertical) direction.
In Practice
FDM parts are inherently weakest between layers (the Z-axis). Poor layer adhesion causes delamination — layers separating under stress. Key factors affecting adhesion: nozzle temperature (higher = better adhesion, but risk of stringing), layer height (thinner layers = more surface contact = stronger bonds), cooling fan speed (less cooling = better adhesion for ABS/nylon), and material moisture content (wet nylon produces steam bubbles between layers). The Epicblaze v1's enclosed chamber maintains ambient temperature, dramatically improving layer adhesion for engineering materials compared to open-frame printers.
Related Terms
The build plate (also called print bed or build platform) is the flat, heated surface on which a 3D printer deposits material layer by layer to construct a part.
Fused Deposition Modeling (FDM), also called Fused Filament Fabrication (FFF), is a 3D printing process that builds parts by extruding melted thermoplastic filament through a heated nozzle, depositing it layer by layer.
Filament is the thermoplastic material — typically supplied as 1.75mm or 2.85mm diameter spools — that FDM 3D printers melt and extrude to create parts layer by layer.
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