Rice School/La Escuela Rice.

The goal of these exercises is to develop the techniques use for basic drafting Tools and skill. It is important to complete the exercises in order, each builds on the skills learn in the previous.  You may draw the exercises  in pairs on  a single piece of paper (if they fit) with a boarder & title block. Remember be neat, use the tool  make light layout lines as need, make your final lines dark and do not free hand. If your drawing becomes to messy place a second sheet of paper over the first and use your tool to trace the neat final product.

1. An exercise for the T square, triangle, and scale. Layout a 4 in. square starting 1 in. from the top boarder and 1 in. from the left boarder.  Draw all horizontal lines with the T square and all vertical lines with the T square and triangle.

2. An interlacement. For T square, triangle, and scale. Draw a 4 in. square. Divide the left side and lower side into seven equal parts with the scale. Draw horizontal and vertical lines across the square through these points. Erase the parts not needed.

3. A street paving intersection for 45 deg.. triangle and scale. An exercise in starting and stopping short lines. Draw a 4 in. square. Draw its diagonals with 45 deg.. triangle. With the scale, lay off 1/2 in. spaces along the diagonals from their intersection. With 45 deg.. triangle, complete the figure, finishing one quarter at a time. Look for the pattern. The work can be done in quarters. Start with longest line in each quarter and work your self out. This needs to be done with out erasers.

4. A square pattern for 45 deg. triangle, dividers, and scale. Draw a 4 in. square and divide one of its sides into three equal parts with dividers or scale. With 45 deg.. triangle, to project these 1/3 point to the other lines. Starting at the points on each side draw lines at a 45 deg. angle toward each other until they inter sect. Measure 3/8 in. on each side of these lines and each side of the square, and finish the pattern as shown in the drawing.

5.  An acoustic pattern. For 45 deg.. triangle, T square, and scale. Draw two intersecting 45 deg.. diagonals 4 in. long, to form a field. With the scale lay off 1/2 in. spaces from their intersection. Add the narrow border 3/16 in. wide and second border 1/2 in. wide on the outside of the field. The length of the border blocks is projected from the corners of the field blocks. The key to this exercise is recognizing the 4 in. square is the inside square with the boarders around it. One sheet for this drawing.

6.  Five cards. Visible and hidden lines. Five cards 1 3/4 by 3 in. are arranged with the bottom card in the center, the other four overlapping each other and placed so that their outside edges form a 4 in. square. Hidden lines indicate edges covered.

7. A Maltese cross. For T square, spacers, and 45 deg.. and 3O -6O deg.. triangles. Draw a 4 in. square and a 1 3/8 in. square. From the corners of the inner square, draw lines to the outer square at 15 deg. and 75 deg. with the two triangles in combination. Mark points with spacers 1/4 in. inside each line of this outside cross, and complete the figure with triangles in combination. draw. Start with the small square first and center the large using the small as a guide.

8.  Insignia. For T square, triangles, scale, and compasses. Draw the 45 deg. diagonals and the vertical and horizontal center lines of a 4 in. square. With compass, draw a 3/4 in diameter construction circle, a 2 3/4 in. circle, and a 3 1/4 in.. circle. Complete the design by adding a square and pointed star as shown.

9.  A six point star. For compass and 30 - 60 deg.. triangle. Draw a 4 in. construction circle and inscribe the six point star with the T square and 30 - 60 deg.. triangle. Accomplish this with 4 successive changes of position of the triangle.

10.  A five point star, 30 - 60 deg..  triangle, and compasses. Draw a 4 in. circle. Use the compass to divide the circle into 5 equal segments. Draw a 2 in. circle in the center. Draw the vertical lines with the triangle and the horizontal lines with the T Square with a line spacing of 1/8 in.

11. 24 point star, both triangles and a T square. To start with you need to a little math to find the correct angles for the star. Divide the number of points in to 360 degrees. Subtract that figure from 90 degrees. Figure out what combination of the triangles will make that angle.  An other approach is to look at the pattern and see that this is a pair of 12 point stars overlaid and off set by 1/2 a point. Start you star in the center of the paper, make it as large as will fit, staying 1/2 off your boarder.