Form Fit Or Function. Web so, the form, fit, function (fff) factor describes the criteria or characteristic of the component or an entire assembly from the identification standpoint. It includes things like shape, weight, color, material, etc.
FormFitFunction (FFF) Definition and Rules Arena
Web all of my experience says to revise a drawing if there is a change to the form, fit, or function of a given part. Ansi states if a part is not backward compatible then is gets a new part number not a new revision. Each defines a specific aspect of the part to help engineers match parts to needs. This also includes tolerances modifications. The f3 framework increases design change flexibility by allowing changes to the part with minimal documentation and design cost as long as the fit, form. Form is the physical characteristics of the product. This is key in ensuring components can be substituted without issue. Here is the challenge, it is hard. If it can be changed by increasing the revision of the component or assembly, or if a new component or assembly has to be created and given a new part number when it is changed. Fit is the ability of an item to physically interface with all other components.
For example, you might describe a screw that will be used in your product as ‘screw, pan head, m3 x. Web form, fit, and function data technical data (td) pertaining to items, components, or processes for the purpose of identifying source, size, configuration, mating and attachment characteristics, functional characteristics, and performance requirements. Web form, fit & function is a change and configuration management principle that helps to determine if a component or assembly can be revised, i.e. Web so, the form, fit, function (fff) factor describes the criteria or characteristic of the component or an entire assembly from the identification standpoint. Ansi states if a part is not backward compatible then is gets a new part number not a new revision. Web form, fit, and function (f3) is the identification and description of characteristics of a part or assembly. Web sometimes weight, balance and centre of mass are considerations in ‘form.’. It includes things like shape, weight, color, material, etc. The f3 framework increases design change flexibility by allowing changes to the part with minimal documentation and design cost as long as the fit, form. Fit is short for “fits intended application”. This is key in ensuring components can be substituted without issue.
