Also known as: fil.
FIL has various meanings in the Architectural category. Discover the full forms, definitions, and usage contexts of FIL in Architectural.
A concave corner piece used on foundry patterns, a radius joint replacing sharp inside corners. OR A narrow band with a vertical face. Fillets are often interposed between curved mouldings. OR A curved face where a rib meets a wall, intended to improve the flow of material and eliminate mechanical stress concentrations on the finished part.
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