Drawing Problems - Chapter 26 Chapter 26 Introduction to Dynamic Blocks 811 Copyright Goodheart-Willcox Co., Inc. 3. Piping Create a block named 90D ELBOW as shown on the left. Do not include the dimensions. Insert two flip parameters and two flip actions. The purpose of one of the flip parameter/action combinations is to flip the elbow horizon- tally. The second flip parameter/action combination flips the elbow vertically. Use the dynamic block to create the drawing shown on the right. Save the drawing as P26-3. 4. Architectural Create a block of the 48″ window as shown on the left. Do not include the dimensions. Insert an alignment parameter so the length of the window can align with a wall. Then draw the walls shown on the right. Insert the window block as needed. Use the alignment parameter to align the window to the walls. Center the windows on wall segments unless dimensioned. Save the drawing as P26-4.