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.

Learn how to draw the involute of a square, set a rope equal to its 100 mm perimeter, and construct the tangent and normal using compass-based arcs.

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.

Illustrate constructing the involute of a hexagon by unwinding a string from a 25 mm hexagon, marking six divisions, and drawing the involute with P1–P6, normal and tangent.

Learn to draw the involute of a circle by unwinding a string from a 50 mm circle, and construct its normal and tangent at 100 mm from the center.

Draw a cycloid for a 50 mm circle over one revolution, divide the circle into 12 parts, then construct the tangent and normal at 35 mm above the baseline.

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.

Master drawing a hyperbola by the eccentricity method, with a 50 mm distance from focus to directrix and eccentricity 3/2, and mark tangent and normal at 25 mm from directrix.

Understand epicycloids and hypocycloids, then draw a hypocycloid by tracing a point on a circle rolling inside a larger circle, and locate the normal and tangent at 40 mm.

Draw a parabola by the general method with eccentricity e=1 and a 50 mm focus-directrix distance, then locate a point 70 mm from the directrix to construct tangent and normal.

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.

Learn to draw an ellipse using the parallelogram method by forming a 120 by 80 mm parallelogram at 75 degrees, dividing it into four parts, and constructing the 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.

draw a parabola by the rectangle (oblong) method using a 120 mm base and 80 mm height, dividing the rectangle into parts and joining intersection points to form the curve.

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.

Draw an ellipse by the arc of circle method using a 120 mm major axis and 80 mm minor axis; locate the foci and join arcs with French curves.

learn to draw an ellipse via the eccentricity method, noting the focus-directrix relation, and construct tangent and normal at a point 75 mm from the directrix.

Explore point projection across the quadrant system in 2d and 3d space, learning how front and top views relate to the vertical and horizontal planes and how quadrants determine position.

Explore the projection of a straight line in the first quadrant across nine positions, analyzing front and top views in orthographic representations and how length appears in 2d projections.

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 projecting planes in the first quadrant by comparing 3D and 2D views of inclined planes, using reference lines, true shapes, and front and top views for orthographic drawings.

Learn to project a pentagonal plane inclined to both the horizontal and vertical planes, constructing its true shape, front and top views, and stepwise inclinations of 40° and 50°.

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.

Master solid projections by learning top and front views, true shapes, and orientations on hp and vp for pyramids and prisms, including edge and corner resting positions.

Project a square pyramid with 50 mm base and 100 mm height resting on the base side, inclining its axis 40° to hp and 50° to vp to derive views.

Explore the projection of a hexagonal plane inclined to the horizontal and vertical planes, using a three-stage method to obtain true shape, front, and top views.

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

Explore orthographic projection by converting isometric objects into front, top, and side views using first and third angle projection methods with projection lines and reference XY axes.

Draw the orthographic views of a hexagonal nut using the first angle method, including front, top, and side projections, with a 40 mm diameter and a 32 mm internal thread.

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 a sectional orthographic projection by creating front, top, and side views in first angle method, then apply 45-degree sectional lines to reveal the cut hollow cylinder and web.

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.

Establish the isometric axes and select the front view in the xy or yz planes. Create a 104 by 72 by 48 mm cuboid and add details.

Construct the isometric view from orthographic projections using the first angle method, set the axes, and apply 75 mm, 50 mm, 32 mm dimensions with a v-shaped groove.

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.

Construct an isometric view from orthographic projections using the isometric axes. Draw front in yz plane and top in xz plane, applying the first angle method.

Learn to draw the isometric view of a circle on the xy, yz, and zx planes using a square, bisectors, diagonals, and arcs in a five-step method.

Construct an isometric view from orthographic projections by establishing the isometric axes, applying the first angle method, and detailing front/top views in the XY/XZ planes with a hole.

Construct an isometric view from orthographic projections using the first angle method, with front views in xy or yz planes; top views in xz plane; draw base, slot, and hole.