In the context of the (Technical Drawing) workbook by Vinogradov , the task involving a "long piece" (often referred to as a "длинная деталь" or "вал" in Russian) typically focuses on the convention of breaks (разрывы). This technique is used to represent long, uniform objects on a smaller sheet of paper without sacrificing detail at the ends. 1. Identify the Drawing Convention
Leave a small gap in the middle of the part’s length and draw the break lines. This indicates that the middle section is omitted. 3. Add Dimensions
For a long part with a constant cross-section (like a shaft or pipe), you should not draw the entire length to scale. Instead, use (линии разрыва). These are typically thin, wavy lines or "Z" shaped zigzag lines drawn by hand or with a ruler, depending on the specific standard (GOST) requirement in your workbook. 2. Prepare the Views
) before the dimension. If the cross-section is not immediately clear from the front view, you may need to draw a (вынесенное сечение) or a superimposed section (наложенное сечение) to show the shape (e.g., a square or hexagon).
The numerical value must represent the actual total length of the part, not the shortened length you drew on the paper. 4. Cross-Sectional Shape If the part is cylindrical, use the diameter symbol ( ∅the empty set
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