Describe exploded assembly drawings, including information about connection lines, balloons, and parts lists.
What will be an ideal response?
An exploded assembly is a collection of parts, each drawn in the same axonometric method. Any of the pictorial drawing methods mentioned in this chapter can be used to create exploded assemblies, but isometric drawings are the most commonly used. Centerlines are used in exploded views to show the connection between part and subassembly axis. Thin solid extension lines can be used to connect between non-cylindrical features, parts, and subassemblies. These lines are called connection lines or trails. Trails aid the eye in following a part to its position in the assembly. Depending on the purpose of the exploded isometric assembly, the parts can be drawn without identification, or they can be identified with balloons. A balloon is a circle placed on the drawing with a part identification number inside the circle. While part identification on an exploded technical illustration commonly use circles with numbers inside as balloons, some companies prefer to use numbers without circles. Each balloon is connected to its related part with a leader line. The balloon part identification number correlates to the same number identifying the part in the parts list. The parts list identifies every part in the assembly.
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