What is parallel line development?

What is parallel line development used for?

In parallel line development, a series of parallel lines are used to assist in the pattern development of a variety of shapes, the most common being square, rectangle and round.

How do you develop parallel lines?

Video quote: So parallel line development is developing the shape developing a pattern through horizontal lines and vertical lines we're going to develop out the shape of this cylinder.

What is radial line development?

In radial line, we develop patterns for shapes that have a taper, all element lines (bends) must radiate back to a common point, a radius point. We need two things for this process to work: A radius point that is on centre (right cone).

What is the difference between parallel line development and radial line development?

Evenly spaced reference lines are necessary in both of these methods. However, in parallel-line development, the reference lines are parallel—like a picket fence. In radial-line development, the reference lines radiate from the apex of a cone—like the spokes of a wheel.

What is triangulation development?

The triangulation method of pattern development is used in metalwork when working with plane surfaces, when identifying true lengths where lengths are not known, and when working on patterns where at least two points are known.

What development method is used for cylindrical work?

Parallel line development is used in industry to develop patterns for articles which have parallel sides. This method is based on a system of lines drawn parallel to one another on the surface of a material to allow forming of a hollow prism or cylinder.

What is cone in engineering drawing?

One end of all the elements is at the vertex of the cone. The other ends describe a curved line. The base of the cone is a circle, with a circumference equal to the length of the curved line.

What is Pyramid in engineering drawing?

Pyramids – a polyhedron formed by a plane surface as its base and a number of triangles as its side faces, all meeting at a point, called vertex or apex. Axis – the imaginary line connecting the apex and the center of the base. Inclined/slant faces – inclined triangular side faces. the apex and the base corners.

What is the principle of development engineering drawing?

Principle of Development:



Every line on the development should show the true length of the corresponding line on the surface which is developed.

What is intersection of solids?

INTERSECTION OF SOLIDS. WHEN ONE SOLID PENETRATES ANOTHER SOLID THEN THEIR SURFACES INTERSECT AND AT THE JUNCTION OF INTERSECTION A TYPICAL CURVE IS FORMED, WHICH REMAINS COMMON TO BOTH SOLIDS. THIS CURVE IS CALLED CURVE OF INTERSECTION AND IT IS A RESULT OF INTERPENETRATION OF SOLIDS.

Which method is used for drawing development of Prism?

Parallel-line method

Which method of development is employed in case of prisms? Explanation: Parallel-line method is employed in case of prisms and cylinders in which stretch out-line principle is used.

How do you draw a cone in engineering drawing?

Video quote: Then join these two points to draw continuous. In line. And join these two points to draw another continuous in line so in this manner you will be able to draw circle into eight equal parts.

How do you make a pyramid?

Video quote: And I'm going to draw a line going up to my XY axis. And I can now take a line going from the apex. Down to the XY axis now if I look at it.

What is projection solid?

1. –The shape of the solid is described by drawing its two orthographic views usually on the two principle planes i.e. H.P. & V.P. PROJECTIONS OF SOLIDS Definition of Solid: A solid is a three dimensional object having length, breadth and thickness.

How do you draw a cylinder projection?

Video quote: So questionable agaric yes right circular cylinder right circle anomalous plane cylinder though his cabeza 50 millimeter diameter and height and 70 minute Agha.

What is a right circle?

: a cylinder with the bases circular and with the axis joining the two centers of the bases perpendicular to the planes of the two bases.

What is the altitude of a cylinder?

The altitude of the cylinder is a perpendicular segment from the plane of one base to the plane of the other and the height of the cylinder is the length of the altitude. The axis of a cylinder is the segment containing the centers of the two bases.

How do you draw a cylinder with a compass?

Video quote: This point here with those two lines cross and again can corner to corner that could be the center of your compass okay so we do that I going to turn it around this way.

What is isometric circle?

On an isometric drawing, circles appear as ellipses and arcs as elliptical arcs. You must properly align isometric circles and arcs with the appropriate isometric plane. See Figure 4A-1. The minor axis of an ellipse always aligns with the centerline axis of the circular feature.

How do you draw a slanted circle?

Video quote: So draw a vertical line through the intersection. Then draw a horizontal line across now we need to draw parallel lines through this midpoint.

How do you draw an isometric view with an arc?

Some people find this technique quicker than the ‘ordinate method’.

1. Draw an isometric square.
2. Divide each side in half.
3. Draw from the top corner to each of the centre points.
4. Draw from the bottom corner to each of the centre points.
5. Number each ‘compass centre’ (1,2,3,4).

How do I draw an ISO circle in Autocad?

After you activate isometric snap mode and select the appropriate isoplane, access the ELLIPSE command to draw an isometric circle. Select the Isocircle option and then specify the location of the circle axis, or center point. Then specify the radius of the circle, or select the Diameter option to specify the diameter.

How do you draw oblique circles?

Video quote: Exactly at an angle of 30 degree. Now instead of 30 degree line this PS I make this PS line exactly orthogonal or 90 degree towards reference line now complete your rectangle accordingly.

What is the angle between isometric axis?

Isometric lines: The lines parallel to the isometric axes i.e. inclined at an angle of 120° with each other, are called isometric lines.

What is isometric AXE?

Isometric Axes



Isometric pictorials are drawn in a coordinate system where the axes are 60 degrees apart. The linear features on or parallel to these three axes are drawn at 80% of full scale to represent true size. Isometric pictorials may be drawn at any scale as long as the scale is uniform on all axes.

When a plane is perpendicular to a reference plane?

Explanation: When a plane is perpendicular to a reference plane, its projection on that plane is a straight line. When a plane is parallel to a reference plane, its projection on that plane shows its true shape and size.