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Cable and Assembly Drawing

This is a very basic drawing I made with AutoCAD LT. I have since switched to SolidWorks, but this is an excellent example of a very simple assembly using a drawing as a work instruction for making sure the correct wire connections are made. Don’t get thrown by the call-outs as these are very generic and do not refer to a specific part number. RL1 just means Ring Lug 1. There is an off-sheet BOM that identifies the parts. For the purpose of illustrating an assembly drawing only, this is sufficient as an example. Notice that the assembly has not been released via an ECN number so this document would not be used on a factory production floor. Wire call-outs including color and length are shown, but company part numbers are not so again, this document would not be acceptable for production purposes.

Download cable-drawing-example-2-autocad-lt.pdf

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Download cable-drawing-example.pdf

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Here is an example of a drawing that would be used on the production flow giving the assemblers specific instructions (Upper right of drawing) on particular details including call outs for fasteners for each assembly operation. Examine the instructions and you will see that the drawing balloon’s call-outs track exactly with the reference numbers in the instruction set. As I mentioned earlier, a Contract Manufacturer may post these drawings at the work stations where the assembly is taking place. This document can also be used as a “proof” of documentation thoroughness. If a person who has never seen the assembly before is asked to build the assembly according to the drawing and instruction set, it will very quickly become evident if the drawing is definitive enough to release to factory operations.

Download tech-drawing-assembly-instructions.pdf

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