What’s on the GD&T Controls poster
A 6-row table: Group · Controls · What it limits.
Symbols appear on the drawing; these are the names behind them.
- Form — Flatness, straightness — The shape of one feature
- Form — Circularity, cylindricity — Roundness, needs no datum
- Orientation — Perpendicularity, parallelism — Angle relative to a datum
- Location — Position, concentricity — Where a feature sits
- Runout — Circular and total runout — Wobble about an axis
- Profile — Line and surface profile — The whole boundary
Form controls need no datum. Orientation, location and runout all reference at least one datum feature.
Questions about the GD&T Controls poster
- What’s on the GD&T Controls poster?
- A 6-row table: Group · Controls · What it limits. Symbols appear on the drawing; these are the names behind them. Form — Flatness, straightness — The shape of one feature; Form — Circularity, cylindricity — Roundness, needs no datum; Orientation — Perpendicularity, parallelism — Angle relative to a datum; Location — Position, concentricity — Where a feature sits; Runout — Circular and total runout — Wobble about an axis; Profile — Line and surface profile — The whole boundary. Form controls need no datum. Orientation, location and runout all reference at least one datum feature.
- Who is the GD&T Controls poster for?
- GD&T Controls belongs to the Mechanical Engineering section rather than to a school year, because engineering is not something one grade owns. Anyone learning cad & drawing can pin it up — a beginner, a student mid-course, or someone revising years later.
- When should you use the GD&T Controls poster?
- Reading a feature control frame, or deciding which control says what you mean. A wall chart earns its place by being glanceable from where the work is happening, so GD&T Controls belongs on the wall where that engineering work actually happens, within glancing distance, rather than filed away.
- What other posters go with GD&T Controls?
- Assembly Drawings, Auxiliary & Detail Views and Choosing Views sit alongside GD&T Controls in the Mechanical Engineering section. Printed together they make a wall rather than a single sheet, which is how a reference set actually gets used.Assembly DrawingsAuxiliary & Detail ViewsChoosing Views
- Is the GD&T Controls poster free to download and print?
- Yes. GD&T Controls downloads as a free PDF with no account, no email and no watermark, like everything else in the Mechanical Engineering section. Print as many copies as you like for a home, a classroom, a library or a tutoring group; reselling the file is the only thing the licence rules out.Read the licence
- What size does the GD&T Controls poster print at?
- GD&T Controls is a vector PDF laid out for US Letter, and prints on A4 with Fit to page — the same file, no separate download. Because every mark on it is drawn rather than photographed, it stays sharp enlarged to A3, A2 or A1 at a copy shop. Colour carries emphasis only, so a greyscale print of GD&T Controls loses nothing.Printing guide
Related posters
Charts that sit alongside GD&T Controls on the same wall.
Assembly Drawings
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Auxiliary & Detail Views
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Choosing Views
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Dimensioning Rules
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Drawing Line Types
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First or Third Angle?
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Datum Reference Frame
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Bonus Tolerance
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