Lines of Symmetry, Oval With
Oval with dotted vertical and horizontal lines that are lines of symmetry.
Ellipse Curve French Curves
An ellipse French curve, or irregular curve, is used to draw short elliptical radius curves by using…
Logarithmic Spiral Curve French Curves
A Logarithmic Spiral French curve, or irregular curve, is used to draw short elliptical radius curves…
Drop Pen
Drop pen, or rivet pen, can make small circles faster than the bow pen. The pen is useful in bridge…
Guiding Needle Point of Compass to Little Finger
The little finger on the left hand can guide the needle point of the compass to the center.
Drawing a Circle Using Compass
When drawing the circle, the compass is turned by the handle with the thumb and forefinger in a clockwise…
Drawing Large Circles with Compass
"Circles up to perhaps three inches in diameter may be drawn with the legs straight but for larger sizes…
Drawing Small Circles with Bow Instrument
Bow instruments can be used for drawing small circles. Hold the the left hand and spin the nut in or…
Drawing Concentric Circles with Compass
"Draw Horizontal line throuch center of space. On it mark off radii for six concentric circles 1/4"…
Drawing Tangent Arcs with Compass and Dividers
"Draw a circle three inches in diameter. Divide the circumference into five equal parts by trial with…
Drawing Tangent Circles and Lines with Compass and Triangles
"On base AB, 3 1/2" long construct an equilateral triangle, using the 60-degree triangle. Bisect the…
Drawing Tangent to Circle Arcs with Bow Compass
"Draw one and one-half inch square about center of space. Divide AE into four 3/16" spaces, with scale.…
Inscribe Regular Octagon in Given Square
"Draw the diagonals of the square. With the corners of the square as centers and radius of half the…