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  2. List of gear nomenclature - Wikipedia

    en.wikipedia.org/wiki/List_of_gear_nomenclature

    Lead angle is 90° to the helix angle between the helical tooth face and an equivalent spur tooth face. For the same lead, the lead angle is larger for smaller gear diameters. It is understood to be measured at the standard pitch diameter unless otherwise specified. A spur gear tooth has a lead angle of 90°, and a helix angle of 0°. See ...

  3. Model sheet - Wikipedia

    en.wikipedia.org/wiki/Model_sheet

    A sample model sheet from the DVD tutorial 'Chaos&Evolutions' In visual arts, a model sheet, also known as a character board, character sheet, character study or simply a study, is a document used to help standardize the appearance, poses, and gestures of a character in arts such as animation, comics, and video games.

  4. Square (tool) - Wikipedia

    en.wikipedia.org/wiki/Square_(tool)

    An L-shaped square used in woodworking for checking an inside or outside angle when assembling workpieces, such as boxes. They are designed to be rigid enough to be clamped in place. [17] [18] Set square, or triangle A set square is used in technical drawing, providing a straightedge at a right angle or another particular planar angle to a ...

  5. 3D projection - Wikipedia

    en.wikipedia.org/wiki/3D_projection

    [citation needed] Like cavalier perspective, one face of the projected object is parallel to the viewing plane, and the third axis is projected as going off in an angle (typically 30° or 45° or arctan(2) = 63.4°). Unlike cavalier projection, where the third axis keeps its length, with cabinet projection the length of the receding lines is ...

  6. Glossary of motion picture terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_motion_picture...

    high-angle shot A cinematic technique where the camera looks down on the subject from a high angle and the point of focus often gets "swallowed up." [32] High-angle shots can make the subject seem vulnerable or powerless when applied with the correct mood, setting, and effects. [33] In film, they can make the scene more dramatic.

  7. Multiview orthographic projection - Wikipedia

    en.wikipedia.org/wiki/Multiview_orthographic...

    First angle projection is often used throughout parts of Europe so that it is often called European projection. Third-angle projection: In this type of projection, the object is imagined to be in the third quadrant. Again, as the observer is normally supposed to look from the right side of the quadrant to obtain the front view, in this method ...

  8. Combination square - Wikipedia

    en.wikipedia.org/wiki/Combination_square

    The standard or square head has three adjacent flat faces, two of them meet square to one another, and the third face is angled away at 45°. When attached one face is parallel to the rule, one face is perpendicular, and one face is at 45°. The standard head usually incorporates a small spirit level and a small removable scriber. [4]

  9. Isometric projection - Wikipedia

    en.wikipedia.org/wiki/Isometric_projection

    Another way isometric projection can be visualized is by considering a view within a cubical room starting in an upper corner and looking towards the opposite, lower corner. The x-axis extends diagonally down and right, the y-axis extends diagonally down and left, and the z-axis is straight up. Depth is also shown by height on the image.