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Show new changes starting from 22:08, 16 January 2026

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N: This edit created a new page (also see list of new pages)
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(±123): The page size changed by this number of bytes

16 January 2026

18:55

Category:F4 Behavior diffhist +106 Admin talk contribs

15 January 2026

19:33

GDT:Total Runout diffhist −16 Admin talk contribs

19:33

GDT:Symmetry diffhist −20 Admin talk contribs

19:33

GDT:Straightness diffhist −16 Admin talk contribs

19:32

GDT:Profile of a Surface diffhist −8 Admin talk contribs

19:32

GDT:Profile of a Line diffhist −11 Admin talk contribs

19:31

GDT:Profile Composite FCF diffhist −7 Admin talk contribs

19:30

GDT:Position diffhist −20 Admin talk contribs

19:30

GDT:Position Composite FCF diffhist −6 Admin talk contribs

			N 19:29		GDT:Perpendicularity 2 changes history +1,746 [Admin (2×)]
					19:29 (cur \| prev) −12 Admin talk contribs
			N		19:04 (cur \| prev) +1,758 Admin talk contribs (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...")

19:29

GDT:Parallelism diffhist −17 Admin talk contribs

19:27

GDT:Flatness diffhist −20 Admin talk contribs

19:27

GDT:Cylindricity diffhist −16 Admin talk contribs

19:27

GDT:Concentricity diffhist −15 Admin talk contribs

19:26

GDT:Circularity diffhist −17 Admin talk contribs

19:26

GDT:Circular Runout diffhist −13 Admin talk contribs

19:25

GDT:Angularity diffhist −18 Admin talk contribs

19:09

Category:Profile diffhist +51 Admin talk contribs

19:09

Category:Location diffhist +51 Admin talk contribs

19:08

Category:F4 Behavior diffhist +78 Admin talk contribs

19:08

Category:GDT Reference diffhist +62 Admin talk contribs

18:58

F4 Wiki:Style Guide diffhist +9 Admin talk contribs

14 January 2026

			N 22:07		Category:Runout 2 changes history +217 [Admin (2×)]
					22:07 (cur \| prev) +42 Admin talk contribs
			N		21:57 (cur \| prev) +175 Admin talk contribs (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")

			N 22:07		Category:Profile 2 changes history +294 [Admin (2×)]
					22:07 (cur \| prev) +43 Admin talk contribs
			N		21:56 (cur \| prev) +251 Admin talk contribs (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")

			N 22:06		Category:Location 2 changes history +306 [Admin (2×)]
					22:06 (cur \| prev) +44 Admin talk contribs
			N		21:54 (cur \| prev) +262 Admin talk contribs (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")

			N 22:06		Category:Orientation 2 changes history +251 [Admin (2×)]
					22:06 (cur \| prev) +47 Admin talk contribs
			N		21:56 (cur \| prev) +204 Admin talk contribs (Created page with "= Orientation = Orientation controls relate features to datums without controlling location. == Pages == * GDT:Parallelism * GDT:Perpendicularity * GDT:Angularity Category:GDT Reference")

			N 22:06		Category:Form 2 changes history +259 [Admin (2×)]
					22:06 (cur \| prev) +40 Admin talk contribs
			N		21:53 (cur \| prev) +219 Admin talk contribs (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")

N 21:55

Category:Modifiers diffhist +357 Admin talk contribs (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")

N 21:54

Category:Glossary diffhist +367 Admin talk contribs (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")

N 21:54

Category:GDT Reference diffhist +435 Admin talk contribs (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")

N 21:53

Category:F4 Behavior diffhist +526 Admin talk contribs (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 *...")

N 21:52

Category:Examples diffhist +443 Admin talk contribs (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")

N 21:51

Category:Datums diffhist +271 Admin talk contribs (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")

N 21:40

GDT:Profile Composite FCF diffhist +1,867 Admin talk contribs (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...")

N 21:30

GDT:Position Composite FCF diffhist +1,550 Admin talk contribs (Created page with "{{Author Credit |author=Admin }} {{GDT Infobox |symbol=Position Composite FCF |type=Location |category=Composite FCF |standard=ASME Y14.5 |author=Admin |datums=Required; lower segments must be ordered subsets |modifiers=Material condition modifiers must be consistent across segments |tolerance_zone=Multiple segments with decreasing tolerance values |image= |mistakes=Using non-position/profile symbols; inv...")

N 21:29

GDT:Profile of a Surface diffhist +1,394 Admin talk contribs (Created page with "{{Author Credit |author=Admin }} {{GDT Infobox |symbol=Profile of a Surface |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=Uniform boundary about the true surface |image= |mistakes=Missing basic/toleranced location; using pro...")

N 21:28

GDT:Profile of a Line diffhist +1,468 Admin talk contribs (Created page with "{{Author Credit |author=Admin }} {{GDT Infobox |symbol=Profile of a Line |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=Two offset lines about the true profile |image= |mistakes=Missing basic/toleranced location; using prohib...")

N 21:21

GDT:Total Runout diffhist +1,304 Admin talk contribs (Created page with "{{Author Credit |author=Admin }} {{GDT Infobox |symbol=Total Runout |type=Runout |category=Runout |standard=ASME Y14.5 |author=Admin |datums=Primary datum required; secondary optional; tertiary not allowed |modifiers=Material condition modifiers where allowed; ST where allowed |tolerance_zone=Runout over the full surface relative to datum axis |image= |mistakes=Missing datum reference; applying runout to...")

N 21:20

GDT:Circular Runout diffhist +1,355 Admin talk contribs (Created page with "{{Author Credit |author=Admin }} {{GDT Infobox |symbol=Circular Runout |type=Runout |category=Runout |standard=ASME Y14.5 |author=Admin |datums=Primary datum required; secondary optional; tertiary not allowed |modifiers=Material condition modifiers where allowed; ST where allowed |tolerance_zone=Runout at each cross-section relative to datum axis |image= |mistakes=Missing datum reference; applying runout...")

N 21:19

GDT:Symmetry diffhist +1,213 Admin talk contribs (Created page with "{{Author Credit |author=Admin }} {{GDT Infobox |symbol=Symmetry |type=Location |category=Location |standard=ASME Y14.5 |author=Admin |datums=Primary datum required |modifiers=None (rarely used) |tolerance_zone=Median plane/axis symmetry about datum |image= |mistakes=Using symmetry where position or profile would be more appropriate |related=F4:Symmetry Validation }} == Summary == Symmetry controls ho...")

N 21:16

GDT:Concentricity diffhist +1,275 Admin talk contribs (Created page with "{{Author Credit |author=Admin }} {{GDT Infobox |symbol=Concentricity |type=Location |category=Location |standard=ASME Y14.5 |author=Admin |datums=Primary datum required |modifiers=None (rarely used) |tolerance_zone=Coaxiality of median points relative to the datum axis |image= |mistakes=Using concentricity where position or runout is more appropriate |related=F4:Concentricity Validation }} == Summary...")

21:15

GDT:Position diffhist +819 Admin talk contribs

N 21:15

GDT:Angularity diffhist +1,660 Admin talk contribs (Created page with "{{Author Credit |author=Admin }} {{GDT Infobox |symbol=Angularity |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 parallel planes or a cylindrical zone oriented at a basic angle to the datum |image= |mistakes=Missing datum re...")

N 21:10

GDT:Parallelism diffhist +1,721 Admin talk contribs (Created page with "{{Author Credit |author=Admin }} {{GDT Infobox |symbol=Parallelism |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 parallel planes (planar) or a cylindrical zone (axis/feature of size) |image= |mistakes=Missing datum referenc...")

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