What Is Oblique Plane in Engineering Drawing
ENGINEERING DRAWING VISUALIZATION
Axonometric & Oblique Projection
Axonometric Projection Parallel & normal to picture plane B A Line of sight A C B D C D
Axonometric Projection Type of axonometric drawing Axonometric axis a one. Isometric A A C b B B D D All angles are equal. c Axonometric axis a two. Dimetric Two angles are equal. c b C Axonometric axis a 3. Trimetric b c None of angles are equal.
Oblique Project Parallel & oblique to picture plane A Line of sight A B B C C D D
Oblique Projection Oblique cartoon bending thirty o A sixty o 45 o B C A Type of Oblique cartoon B D C 2) Cabinet 1) Cavalier D Full calibration 45 o One-half scale 45 o
Isometric Projection & Isometric drawing
Isometric Project Rotate 45 virtually vertical axis Tilt forward (35 o 16') All edges foreshorten about 0. 8 time.
Isometric Drawing Isometric drawing is a drawing drawn on an isometric axes using total scale. Isometric project (True projection) Isometric drawing (Full calibration) Forshorten Full scale
Positions of Isometric Axes Isometric axes can be arbitrarily positioned to create dissimilar views of a single object. Regular isometric Reverse centrality isometric Long axis isometric View point is looking downwards on the elevation of the object. View point is looking up on the bottom of the object. View point is looking from the correct (or left) of the object.
Altitude in Isometric Drawing True-length distances are shown along isometric lines. Isometric line is the line that run parallel to any of the isometric axes. Nonisometric lines Isometric axes
Isometric Sketching
Sketch from an actual object STEPS 1. Positioning object. 2. Select isometric centrality. iii. Sketch enclosing box. 4. Add together details. five. Darken visible lines.
Sketch from an bodily object STEPS ane. Positioning object. 2. Select isometric axis. 3. Sketch enclosing box. four. Add details. 5. Darken visible lines. Note In isometric sketch/drawing), hidden lines are omitted unless they are absolutely necessary to completely describe the object.
Sketch from multiview drawing one. Interprete the meaning of lines/areas in multiview drawing. two. Locate the lines or surfaces relative to isometric axis.
Example one : Object has only normal surfaces Meridian Regular H Tiptop View Front View Westward Bottom View H W Side D Side View D Contrary Front end Bottom Side
D Example ii : Object has inclined surfaces Nonisometric line y H q y ten Forepart View x Westward
Instance 3 : Object has inclined surfaces x C x B A B 10 x A y C B A Nonisometric line
Example four Regular 10 y C D B B F Front View A C A Due east Reverse D F East
Circle & Arc in Isometric In isometric drawing, a circle appears every bit an ellipse. Sketching Steps ane. Locate the centre of an ellipse. 2. Construct an isometric square. three. Sketch arcs that connect the tangent points.
Circle & Arc in Isometric Iv-heart method is usually used when drawn an isometric ellipse with drawing instrument. Sketching Steps one. Locate the centre of an ellipse. 2. Construct an isometric square. 3. Construct a perpendicular bisector from each tangent point. 4. Locate the 4 centres. 5. Draw the arcs with these centres and tangent to isometric square.
Instance 5
Irregular Curve in Isometric Steps 1. Construct points along the bend in multiview drawing. 2. Locate these points in the isometric view. 3. Sketch the connecting lines.
Oblique Sketching
Object Orientation Guidelines Place complex features (arc, hole, irregular shape surface parallel to frontal plane.
Object Orientation Guidelines The longest dimension of an object should be parallel to the frontal plane. GOOD WORSE
Object Orientation Guidelines Which orientation is better ?
Sketch from bodily object ESTIMATE DEPTH ESTIMATE LINES D 45
Sketch from multiview drawing
Sketch from multiview drawing
Sketch from multiview cartoon Due east D C B A
Sketch from multiview drawing Eastward D C B A
Sketch from multiview drawing E D C B A
Sketch from multiview drawing Eastward D C B A
Oblique and Isometric Drawings GSMST
Condescending Oblique • Front view true size • Receding Axis Angle (Normally 30°, 45° or threescore°) is Variable • Depth dimension (receding axis) true size
Cabinet Oblique • Front view truthful size • Receding Axis Bending (Unremarkably xxx°, 45° or lx°) is Variable • Depth dimension (receding axis) half size
Side by Side Comparison Cavalier Oblique Cabinet Oblique
Which is the cube ?
Were you correct?
Angles in Oblique • Angles in forepart view are drawn true size • Other angles must be located using coordinates • Appearance of angles may be distorted
Circles in Oblique • Drawn truthful size in front view • Drawn as ellipses on receding planes • Layout using a Rhomb
Cylinders in Oblique • Front end and Back surfaces are circular • "Sides" are drawn as lines tangent to the front end and back
Types of Axonometrics
Orientation of Pictorial Objects
Isometrics • • Axes equally separated (120°) H, W, and D measurements are true size forth iso. axes Angles must be located by coordinates Circles announced equally ellipses on all surfaces
Isometric Circles & Angles
Isometric Ellipses
Using the Ellipse Template
Drawing Rounded Corners
Construction of Cylinders • Lightly block in the cylinder
Structure of Cylinders • Lightly block in the cylinder • Sketch the upper and lower ellipses
Structure of Cylinders • Lightly block in the cylinder • Sketch the upper and lower ellipses • Connect the ellipses with Tangent lines
Construction of Cylinders • Lightly block in the cylinder • Sketch the upper and lower ellipses • Connect the ellipses with Tangent lines • Darken the lines
Isometric Drawing Exercise You volition use two different lines to sketch objects: PConstruction lines are low-cal lines sketched in as yous initially describe the object. PDrawing lines are dark lines which may be used for the initial drawing or which may be created by neatly concealment a structure line.
Isometric Drawing Practise To draw an isometric object using the box method, perform the following steps: Stride 1: Draw a box around the object you wish to draw.
Isometric Drawing Practise Step ii: Draw a box on your paper, in the aforementioned proportions as the box you drew on the object, one½ to 2 times larger than the original box. Proportional box Original box
Isometric Drawing Exercise Step 3: Expect at the front side of the object. Which surface touches the outside of the box? Stride 4: Describe the surface on your box using drawing lines.
Isometric Drawing Do Stride v: Look at the elevation of the object. Which surface touches the exterior of the box? Step half-dozen: Depict the surface on your box using drawing lines.
Isometric Drawing Practise Step 7: Look at the correct hand side of the object. Which surface touches the outside of the box? Step 8: Draw the surface on your box using cartoon lines.
Isometric Drawing Practise Step ix: Consummate the box by drawing in the "third lines". You may wish to draw construction lines then neatly cover the construction lines with drawing lines.
Source: https://slidetodoc.com/engineering-drawing-visualization-axonometric-oblique-projection-axonometric-projection/
0 Response to "What Is Oblique Plane in Engineering Drawing"
Post a Comment