Blueprint reading; a practical manual of instruction in blueprint reading through the analysis of typical plates with reference to mechanical drawing conventions and methods, the laws of projection, etc . Position 6. Drawing Very Large Circle with Spread Compass and Lengthening Bar 90 MECHANICAL DRAWING 25. Position 7. Adjusting Dividers with One Hand. between Legs Note Second and Third Fingers DONTS IN DRAFTING WORK Dont fold a drawing. Dont stick the dividers into the drawing board. Dont use the dividers as picks. Dont use the scale to rule lines. Doiit fail to clean the table, board, and in
Blueprint reading; a practical manual of instruction in blueprint reading through the analysis of typical plates with reference to mechanical drawing conventions and methods, the laws of projection, etc . Position 6. Drawing Very Large Circle with Spread Compass and Lengthening Bar 90 MECHANICAL DRAWING 25. Position 7. Adjusting Dividers with One Hand. between Legs Note Second and Third Fingers DONTS IN DRAFTING WORK Dont fold a drawing. Dont stick the dividers into the drawing board. Dont use the dividers as picks. Dont use the scale to rule lines. Doiit fail to clean the table, board, and instruments when beginning draw on the lower edge of the cut the sheets of drawing paper with the upper edge of the T-square and a knife; use the lower put the end of a pencil in the oil the compass joints. Dont put away the instruments without cleaning, especially use the cheapest use the T-square as a screw up the nibs of the pen too use a blotter on lines that have been run the pen or pencil backward over a fill a pen over a drawing. 91 26 MECHANICAL DRAWING PRELIMINARY LINE PROBLEMS To lay out the paper for the plates of this work, place a sheetA B G F, Fig. 38, on the drawing board 2
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Keywords: ., bo, bookcentury1900, bookdecade1910, booksubjectmechanicaldrawing
