Pedal harps use the mechanical action of pedals to change the pitches of the strings. There are seven pedals, each affecting the tuning of all strings of one pitch-class, and each pedal is attached to a rod or cable within the column of the harp, which then connects with a mechanism within the neck.
Type of Paper for Plans -- Relatively heavy, blueprint quality, standard drafting paper or copy. bond. Tissue paper, graph paper, posterboard, cardboard, and similar materials cannot be accepted. Paper Size -- For most plans, select one of the following sizes: 18â x 24â, 24â x 36â, or 30â x 42â. For short plats and boundary line adjustments, 18â x 24â. For final plats, 18â x 22â. For sign. permit drawings, 8 1/2 ââx 11ââ or 8 1/2ââ x 14â is preferred.
Understanding how large or small certain items are essential when reading engineering drawings. While most engineering drawings are created in scale versions of 1/4-1/8 inches (.55-.275 centimeters) per foot, other scales may be used for very large creations. Always determine the scale of the drawing before examining it in detail. If the scale is not obviously evident on the drawing, consult with the engineer who drew it for clarification.