Master Engineering Drawing with Animations.

Explore the involute of a triangle by unwinding a rope equal to the triangle's perimeter, and construct the curve with compass and ruler, including a tangent and normal.

Construct the involute of a pentagon by unwinding a rope equal to its perimeter. Draw a normal and a tangent at a chosen point on the curve.

Construct an epicycloid by tracing a point on a circle rolling outside a 150 mm diameter circle, and draw the tangent and normal at 120 mm from the center.

Learn to construct an archimedean spiral, a curve with constant separation between turns, essential in mechanical engineering, gear design, and cam profiles, demonstrated with a one-convolution example.

Draw an ellipse using the four center method with a 120 mm major axis and 80 mm minor axis, using centers and arcs.

Draw an ellipse inside a 120 mm by 80 mm rectangle, divide it into four equal parts, and join division lines to form the full ellipse.

Explore drawing a parabola by the eccentricity method, using a focus-directrix distance of 50 mm, and construct a tangent and a normal at a point 70 mm from the directrix.

Learn to draw a parabola by the tangent method with base 120 mm and height 60 mm, and construct the tangent and normal at a chosen point.

Learn how to determine the true length of a straight line inclined to both vertical and horizontal planes using front and top views, projectors, and locus methods.

Explore the projection of solids and learn the fundamentals of three-dimensional shapes such as pyramids, prisms, cubes, cones, cylinders, and tetrahedrons, including base shapes, edges, faces, apex, axis, and generators.

Draw orthographic projection from an isometric figure to produce front, top, and side views using the first angle method with reference and projection lines.

Apply first angle orthographic projection to a hexagonal bolt, producing front, top, and side views with a 20 mm diameter and 100 mm body length.

Learn to draw sectional orthographic views by introducing a cutting plane to reveal hidden internal features in front, top, and side views with consistent hatching.

Construct an isometric view from orthographic projections using the first angle method, set up the isometric axis, and draw front, top, and side views with labeled edges.

Create the isometric view from orthographic projections by establishing the isometric axes and using the first angle method to place front in xy and top in xz.

Construct an isometric view from orthographic projections using the first angle method, establish the isometric axes, and dimension the base, hole, and features.

Establish the isometric axes and apply the first angle method to create the isometric view. Draw the base on the xz plane and outline a 25×12 mm slot.