1/16/2023 0 Comments Freehand design witth sketchpenSmaller curves will need the pencil held more uprightly, so that the point shall not interfere with the view. is suitable, very similar to that of a pen in writing. For large, bold sweeps, an angle as shown in Fig. The particular slope or angle of the pencil is of less moment, and will vary with individual habits, also, to some extent, with the size of the curve to be drawn. The pencil should be held as lightly as possible, much as one does in writing, with the fingers and thumb working in unison, not counteracting or checking each other. Quite the opposite of the above method is the eorrcct one. Invariable result : a weak, wobbly and irregular line, which, if unadvised he disgustedly rubs out and begins afresh in the same manner! Nothing else might be expected, the tense muscles causing continual vibration of the hand. How to draw a Curved Line.-The beginner generally starts off to draw a curved line by gripping the pencil rigidly between thumb and fingers in a nearly upright position, and, with stiffly set wrist, proceeds to trail slowly across the paper, in as near as may be the direction desired. The methods here described are those used by the author for many years. The ability to draw a linn regular line, showing the profile of a moulding, or to sketch some small object we wish to describe is of value to every artisan, anil not the least to those who aspire to positions of authority or supervision. Straight lines can be better and more profitably produced by mechanical aids, and though the power to draw a straight line a foot long entirely without the help of a ruler, etc., may be of value on rare occasions, it seems to the author that time can be better spent than in attempting to acquire such exceptional skill, and he prefers to use instruments for the purpose himself. There are many small and subtle curves met with in technical drawing that can be quickly and well put in by the unaided pen or pencil if the draughtsman educates his hand to that end, and it is to assist hint in acquiring this power that these instructions are given. The term " freehand " has been defined in Chapter E, and it is only necessary to say here that what is meant and described under that term is the production by pen or pencil of those parts of a technical drawing that cannot profitably be made by means of instruments. Various Hinges - description of their uses and sizes : butt, back flap, table and desk hinges, trestle, parliament, pew, counter flap, hook and eye, Collinge, cross garnets, floor springs Use ot Squared Paper-enlarging and diminishing drawings. Examples-copying a moulding, a cabinet screw driver, cylinders. Definition of Freehand-its uses to the artisan and draughtsman.
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