Main public logs

Combined display of all available logs of F4 Wiki. You can narrow down the view by selecting a log type, the username (case-sensitive), or the affected page (also case-sensitive).

18:54, 16 January 2026 Admin talk contribs created page F4:Validation Decisions (Created page with "{{Author Credit |author=Admin }} == Summary == Some GD&T compliance checks require interpretation. When F4 cannot determine an answer unambiguously from model data, it asks a structured question (“decision”) and validates based on the selected option. == Standard meaning == ASME Y14.5 defines the rules, but it does not define how software should collect clarifications when information is missing or ambiguous. == F4 behavior == === When F4 asks a dec...")
18:54, 16 January 2026 Admin talk contribs created page F4:Feature of Size Linkage (Created page with "{{Author Credit |author=Admin }} == Summary == Some tolerances are conditionally linked to a feature of size (FOS). When F4 detects a linked size dimension, it can enforce additional rules such as comparing the FCF tolerance against the size tolerance (unless an exception applies). == Standard meaning == In ASME Y14.5, some form/orientation controls interact with size and Rule #1-style constraints. The standard defines the intent; software still has to d...")
18:54, 16 January 2026 Admin talk contribs created page F4:Auto Checks (Created page with "{{Author Credit |author=Admin }} == Summary == F4 reports “auto checks” (informational codes) to show which validation steps were completed successfully. == Standard meaning == ASME Y14.5 defines compliance requirements, not progress reporting. Auto checks are an F4 implementation detail to improve transparency and debugging. == F4 behavior == === What an auto check means === An auto check is an informational record that a specific validation step p...")
18:40, 16 January 2026 Admin talk contribs created page F4 Wiki:Trust and review (Created page with "__NOTOC__ = Trust & review = This wiki is designed so readers can quickly tell what is “stable” and what is still being drafted. == Approved content (public view) == The default public view shows **approved revisions**. * Approved revisions are reviewed by moderators before they become the public default. * Unapproved drafts may exist while work is in progress. * Some pages may intentionally remain unapproved until they are complete. == Drafts and in-progress edi...")
18:36, 16 January 2026 Admin talk contribs created page F4 Wiki:Start Here (Created page with "__NOTOC__ = Start here = This page is the fastest way to find the right part of the wiki. == Browse == {| class="f4-card-grid" |- | class="f4-card" | '''GD&T Reference''' Standard definitions, symbols, and usage guidance. | class="f4-card" | '''F4 Behavior''' How the F4 validator interprets and checks GD&T. | class="f4-card" | '''Glossary''' Short definitions and quick reference...")
18:09, 16 January 2026 User account User talk contribs was created automatically
19:05, 15 January 2026 Admin talk contribs created page F4:Multi-Single Segment Validation (Created page with "{{Author Credit |author=Admin }} == Summary == F4 validates MSS FCFs against the ASME logic in the F4 Application and enforces segment structure, datum, modifier, and per-segment rules. == Validation rules == * MSS requires more than one segment; single-segment FCFs use the standard validator. * If all segments are position, F4 routes to the position MSS validator. * If all segments are profile, F4 routes to the profile MSS validator. * Otherwise, F4 app...")
19:05, 15 January 2026 Admin talk contribs created page GDT:Multi-Single Segment FCF (Created page with "{{Author Credit |author=Admin }} {{GDT Infobox |symbol=Multi-Single Segment FCF |type=Multi-Segment |category=Multi-Segment |standard=ASME Y14.5 |author=Admin |datums=Per segment as required by the tolerance type |modifiers=Per segment; must follow the rules for each tolerance symbol |tolerance_zone=Multiple single-segment zones stacked in one feature control frame |image= |mistakes=Using composite rules...")
19:05, 15 January 2026 Admin talk contribs created page F4:Perpendicularity Validation (Created page with "{{Author Credit |author=Admin }} == Summary == F4 validates perpendicularity against the ASME logic in the F4 Application and enforces datum, feature-type, modifier, and pattern rules. == Validation rules == * A primary datum reference is required. * Perpendicularity is valid only for a planar surface, a planar feature of size, or a cylindrical feature of size. * Perpendicularity cannot be applied to a pattern. * Unequally disposed is not allowed. * Plan...")
19:04, 15 January 2026 Admin talk contribs created page GDT:Perpendicularity (Created page with "{{Author Credit |author=Admin }} {{GDT Infobox |symbol=Perpendicularity |type=Orientation |category=Orientation |standard=ASME Y14.5 |author=Admin |datums=Primary datum required |modifiers=Diameter for cylindrical FOS; ST where allowed; material condition modifiers per feature type |tolerance_zone=Two perpendicular planes (planar) or a cylindrical zone (axis/feature of size) oriented 90 degrees to the datum |image=<!-- TODO: add diagram fil...")
18:55, 15 January 2026 Admin talk contribs created page User:Admin (Created page with "__NOTOC__ == Admin == {| class="f4-profile" |- | class="f4-profile-card" | '''Admin''' ''F4 Wiki Administrator'' '''Roles''' * Bureaucrat * Interface administrator * Site admin | class="f4-profile-card" | '''Quick links''' * Message me * Contributions * Recent changes |} == Focus == * Editorial workflow and approvals * Content standards and templates * Site reliability and upg...")
18:54, 15 January 2026 Admin talk contribs created page UserWiki:Admin (import user wiki)
18:49, 15 January 2026 Admin talk contribs created page F4 Wiki:Privacy policy (Created page with "__NOTOC__ = Privacy policy = This policy explains how F4 Wiki handles personal data when you use this site. == Information we collect == * Account information you provide (username, email address if supplied, profile fields). * Contributions you make (page edits, uploads, comments, and summaries). * Technical data needed to operate the site (IP address, browser details, timestamps, request logs). * Cookies or local storage used for login sessions and site preferences....")
18:49, 15 January 2026 Admin talk contribs created page F4 Wiki:General disclaimer (Created page with "__NOTOC__ = General disclaimer = F4 Wiki is provided for informational purposes only. While we strive for accuracy, content may be incomplete, out of date, or reflect approved interpretations that evolve over time. == No professional advice == Nothing on this site constitutes engineering, legal, or other professional advice. You are responsible for applying information appropriately for your use case and validating outcomes with qualified professionals. == No warrantie...")
18:47, 15 January 2026 Admin talk contribs created page MediaWiki:Citizen-footer-tagline (Created page with "Precision GD&T guidance for the F4 community.")
18:47, 15 January 2026 Admin talk contribs created page MediaWiki:Citizen-footer-desc (Created page with "F4 Wiki is the public GD&T reference and F4 interpretation guide. See the contributor guide and license.")
18:47, 15 January 2026 Admin talk contribs created page F4 Wiki:About (Created page with "__NOTOC__ = About F4 Wiki = F4 Wiki is the public, stable reference for GD&T and how the F4 Application interprets and validates it. Each topic pairs standard guidance with F4-specific behavior so you can move from definition to decision quickly. == What you will find == * GD&T reference topics with clear definitions and examples. * F4 validation rules, edge cases, and decision logic. * Templates, glossary entries, and practical examples. == How it works == * The publi...")
17:10, 15 January 2026 Admin talk contribs set the upload from Thu, 15 Jan 2026 17:10:43 GMT as the approved revision for "File:F4 Logo White.svg"
17:10, 15 January 2026 Admin talk contribs created page File:F4 Logo White.svg
17:10, 15 January 2026 Admin talk contribs uploaded File:F4 Logo White.svg
17:09, 15 January 2026 Admin talk contribs unset approved revision for "File:F4 Logo White.svg"
17:09, 15 January 2026 Admin talk contribs deleted page File:F4 Logo White.svg (content was: "", and the only contributor was "Admin" (talk))
16:49, 15 January 2026 Admin talk contribs set the upload from Thu, 15 Jan 2026 16:49:14 GMT as the approved revision for "File:F4 Logo White.svg"
16:49, 15 January 2026 Admin talk contribs created page File:F4 Logo White.svg
16:49, 15 January 2026 Admin talk contribs uploaded File:F4 Logo White.svg
22:05, 14 January 2026 Admin talk contribs created page GDT:Runout Overview (Created page with "{{Author Credit |author=Admin }} {{GDT Infobox |symbol=Runout Overview |type=Runout |category=Runout |standard=ASME Y14.5 |author=Admin |datums=Required for runout controls |modifiers=Varies by control and feature type |tolerance_zone=Runout zones measured relative to a datum axis |image= |mistakes=Missing datum axis; using runout when profile is more appropriate |related=Category:Runout }} == Summar...")
22:05, 14 January 2026 Admin talk contribs created page GDT:Profile Overview (Created page with "{{Author Credit |author=Admin }} {{GDT Infobox |symbol=Profile Overview |type=Profile |category=Profile |standard=ASME Y14.5 |author=Admin |datums=Optional, based on how the true profile is located |modifiers=Dynamic profile, non-uniform, tangent, unequal, free state, ST where allowed |tolerance_zone=Profile zones around the true profile |image= |mistakes=Missing true profile location; applying profile to...")
22:05, 14 January 2026 Admin talk contribs created page GDT:Orientation Overview (Created page with "{{Author Credit |author=Admin }} {{GDT Infobox |symbol=Orientation Overview |type=Orientation |category=Orientation |standard=ASME Y14.5 |author=Admin |datums=Required to establish orientation |modifiers=Varies by control and feature type |tolerance_zone=Varies by control |image= |mistakes=Missing datum references; using orientation control where location control is required |related=Category:Orientatio...")
22:04, 14 January 2026 Admin talk contribs created page GDT:Location Overview (Created page with "{{Author Credit |author=Admin }} {{GDT Infobox |symbol=Location Overview |type=Location |category=Location |standard=ASME Y14.5 |author=Admin |datums=Required for location controls |modifiers=Varies by control and feature type |tolerance_zone=Varies by control |image= |mistakes=Missing basic dimensions; missing datum references; using the wrong control for the feature type |related=Category:Location }...")
22:04, 14 January 2026 Admin talk contribs created page GDT:Form Overview (Created page with "{{Author Credit |author=Admin }} {{GDT Infobox |symbol=Form Overview |type=Form |category=Form |standard=ASME Y14.5 |author=Admin |datums=Not used for form controls |modifiers=Varies by control and feature type |tolerance_zone=Varies by control |image= |mistakes=Referencing datums for form-only controls; choosing the wrong form control for the feature |related=Category:Form }} == Summary == Form cont...")
21:57, 14 January 2026 Admin talk contribs created page F4:Compliance Logic (Created page with "{{Author Credit |author=Admin }} == Summary == F4 Compliance Logic describes how the F4 Application validates GD&T feature control frames against ASME rules and internal constraints. == Scope == F4 validation covers feature control frame structure, datum references, modifier legality, tolerance hierarchy, and feature-of-size requirements. Composite and MSS frames use additional segment rules. == Validation flow == # Parse the feature control frame and e...")
21:57, 14 January 2026 Admin talk contribs created page Category:Runout (Created page with "= Runout = Runout controls define circular or total runout relative to a datum axis. == Pages == * GDT:Circular Runout * GDT:Total Runout Category:GDT Reference")
21:56, 14 January 2026 Admin talk contribs created page Category:Profile (Created page with "= Profile = Profile controls define a tolerance zone around a true profile. == Pages == * GDT:Profile of a Line * GDT:Profile of a Surface * GDT:Profile Composite FCF * GDT:Profile Multi-Single Segment FCF Category:GDT Reference")
21:56, 14 January 2026 Admin talk contribs created page Category:Orientation (Created page with "= Orientation = Orientation controls relate features to datums without controlling location. == Pages == * GDT:Parallelism * GDT:Perpendicularity * GDT:Angularity Category:GDT Reference")
21:55, 14 January 2026 Admin talk contribs created page Category:Modifiers (Created page with "= Modifiers = Modifiers refine how tolerance zones are sized or interpreted. == Overview == * GDT:Modifiers Overview == Common modifiers == * GDT:MMC * GDT:LMC * GDT:RFS * GDT:Projected Tolerance Zone * GDT:Tangent Plane * GDT:Unequally Disposed * GDT:Free State * GDT:Statistical Tolerance Category:GDT Reference")
21:54, 14 January 2026 Admin talk contribs created page Category:Location (Created page with "= Location = Location controls define where features must be, relative to datums. == Pages == * GDT:Position * GDT:Position Composite FCF * GDT:Position Multi-Single Segment FCF * GDT:Concentricity * GDT:Symmetry Category:GDT Reference")
21:54, 14 January 2026 Admin talk contribs created page Category:Glossary (Created page with "= Glossary = Short definitions of GD&T terms used across the wiki. == How to add entries == * Create a page with the term as the title. * Add a short definition and a diagram if helpful. * Tag it with Category:Glossary. == Suggested starter terms == * Datum * Feature Control Frame * Feature of Size * True Position * Tolerance Zone Category:GDT Reference")
21:54, 14 January 2026 Admin talk contribs created page Category:GDT Reference (Created page with "= GD&T Reference = This category groups the core GD&T reference material and supporting resources. == Sections == * Category:Form * Category:Orientation * Category:Location * Category:Profile * Category:Runout * Category:Modifiers * Category:Datums * Category:Glossary * Category:Examples == Key pages == * GDT:Straightness * GDT:Flatness * GDT:Position * GDT:Profile of a Surface")
21:53, 14 January 2026 Admin talk contribs created page Category:Form (Created page with "= Form = Form controls limit the shape of individual features without reference to datums. == Pages == * GDT:Straightness * GDT:Flatness * GDT:Circularity * GDT:Cylindricity Category:GDT Reference")
21:53, 14 January 2026 Admin talk contribs created page Category:F4 Behavior (Created page with "= F4 Behavior = This category contains F4-specific validation behavior and compliance logic. == Core pages == * F4:Compliance Logic == Validation pages == * F4:Straightness Validation * F4:Flatness Validation * F4:Position Validation * F4:Profile of a Line Validation * F4:Profile of a Surface Validation * F4:Position Composite Validation * F4:Profile Composite Validation * F4:Position MSS Validation * F4:Profile MSS Validation *...")
21:52, 14 January 2026 Admin talk contribs created page Category:Examples (Created page with "= Examples = Worked examples and annotated drawings that show how controls are applied. == How to add examples == * Create an example page with a short title. * Include a figure or diagram where possible. * Link back to the related GD&T page. * Tag it with Category:Examples. == Suggested starter examples == * Position on a hole pattern * Profile on a contoured surface * Composite position on a bolt circle Category:GDT Reference")
21:51, 14 January 2026 Admin talk contribs created page Category:Datums (Created page with "= Datums = Datums define the reference frame used to evaluate tolerances. == Overview == * GDT:Datums Overview == Common topics == * GDT:Datum Feature * GDT:Datum Reference Frame * GDT:Datum Targets * GDT:Datum Modifiers Category:GDT Reference")
21:44, 14 January 2026 Admin talk contribs created page GDT:Modifiers Overview (Created page with "{{Author Credit |author=Admin }} {{GDT Infobox |symbol=Modifiers Overview |type=Modifiers |category=Modifiers |standard=ASME Y14.5 |author=Admin |datums=Datum reference modifiers and material condition modifiers |modifiers=MMC, LMC, RFS, projected tolerance zone, tangent plane, unequal, free state, statistical |tolerance_zone=Modifier-dependent zone sizing and boundaries |image= |mistakes=Using prohibited...")
21:43, 14 January 2026 Admin talk contribs created page GDT:Datums Overview (Created page with "{{Author Credit |author=Admin }} {{GDT Infobox |symbol=Datums Overview |type=Datums |category=Datums |standard=ASME Y14.5 |author=Admin |datums=Defines a datum reference frame from datum features |modifiers=Material condition modifiers and datum feature simulator rules |tolerance_zone=Datum-related tolerance zones and simulators |image= |mistakes=Unstable datum selection; missing datum order; mixing unrel...")
21:40, 14 January 2026 Admin talk contribs created page GDT:Profile Multi-Single Segment FCF (Created page with "{{Author Credit |author=Admin }} {{GDT Infobox |symbol=Profile Multi-Single Segment FCF |type=Profile |category=Multi-Segment |standard=ASME Y14.5 |author=Admin |datums=Optional; segments should not repeat the same datum set |modifiers=Dynamic profile, non-uniform, tangent, unequal, free state, ST where allowed |tolerance_zone=Multiple profile segments, each defining its own zone |image= |mistakes=Missing...")
21:40, 14 January 2026 Admin talk contribs created page GDT:Profile Composite FCF (Created page with "{{Author Credit |author=Admin }} {{GDT Infobox |symbol=Profile Composite FCF |type=Profile |category=Composite FCF |standard=ASME Y14.5 |author=Admin |datums=Optional; when used, lower segments must be ordered subsets |modifiers=Dynamic profile, non-uniform, tangent, unequal, free state, ST where allowed |tolerance_zone=Multiple profile zones with decreasing tolerances |image= |mistakes=Using non-profile...")
21:40, 14 January 2026 Admin talk contribs created page GDT:Position Multi-Single Segment FCF (Created page with "{{Author Credit |author=Admin }} {{GDT Infobox |symbol=Position Multi-Single Segment FCF |type=Location |category=Multi-Segment |standard=ASME Y14.5 |author=Admin |datums=Required for planar FOS; segments should not repeat the same datum set |modifiers=Diameter required for cylindrical FOS; tangent and unequal are not allowed; ST where allowed |tolerance_zone=Multiple position segments, each defining its own zone |image=<!-- TODO: add diagr...")
21:39, 14 January 2026 Admin talk contribs created page F4:Profile MSS Validation (Created page with "{{Author Credit |author=Admin }} == Summary == F4 validates profile MSS FCFs against the ASME logic in the F4 Application and enforces segment, datum, modifier, and true-profile rules. == Validation rules == * Profile MSS applies when the main segment is profile of a line or profile of a surface; mixed symbols use the general MSS validator. * MSS requires more than one segment; single-segment profile uses the standard profile validator. * Duplicate segme...")
21:39, 14 January 2026 Admin talk contribs created page F4:Profile Composite Validation (Created page with "{{Author Credit |author=Admin }} == Summary == F4 validates profile composite FCFs against the ASME logic in the F4 Application and enforces segment, datum, modifier, and tolerance hierarchy rules. == Validation rules == * Only profile of a line, profile of a surface, or position symbols are allowed in composite segments. * Composite profile FCFs must have 2 to 5 segments. * The composite must be applied to a true profile or true profile pattern. * The t...")
21:39, 14 January 2026 Admin talk contribs created page F4:Position MSS Validation (Created page with "{{Author Credit |author=Admin }} == Summary == F4 validates position MSS FCFs against the ASME logic in the F4 Application and enforces feature-type, basic dimension, datum, modifier, and segment rules. == Validation rules == * Position MSS applies only when all segments are position tolerances; mixed symbols use the general MSS validator. * MSS requires more than one segment; single-segment position uses the standard position validator. * The toleranced...")