feiltolerant
Feiltolerant is a term used in engineering and manufacturing to describe a design, component, or process that can accommodate material removal by filing during finishing without compromising function, fit, or safety. The concept emphasizes forgiving tolerances and intentional allowances that allow manual finishing to bring parts to their final dimensions or clearances.
Etymology and usage. The word combines the German feile (to file) with tolerant, reflecting its origins in
Applications and design guidance. Feiltolerance can be relevant for prototyping, repair work, or low-volume production where
Limitations and considerations. Relying on feiltolerance can increase variability if not managed, and excessive filing can
See also. Tolerances, post-processing, hand finishing, design for manufacturability.