| IT IS IMPERATIVE
THAT YOU CONSULT THE DRAWINGS GOING INTO A AND OUT OF B. CHECK AT
LEAST TWO PRIOR DRAWINGS AND A FOLLOWING EXTREME. THERE ARE TWO THINGS
TO NOTICE: (1) WHAT IS THE RIGHT ARC, IF ANY, AND (2) IS THE DRAWING
EXACTLY IN BETWEEN, OR IS IT CLOSER TO A OR B ACCORDING TO THE PROGRESSION
OF DRAWINGS? THIS IS ARC AND SPACING. EXPERIMENT ! YOU WILL LEARN
THE TRICK OF TAKING DRAWINGS OFF PEGS, SHIFTING THE EXTREMES SO THE
DETAILS COINCIDE, PLACING THE CORNERS OF YOUR IN-BETWEEN PAPER BETWEEN
THE TWO SHIFTED EXTREMES, AND MAKING AN IN-BETWEEN ON MUCH EASIER
TERMS THAN THE PEGS ALLOW. IT IS BEST TO MAKE A LIGHT MECHANICAL DRAWING-NO
MATTER HOW CRUDE - BETWEEN LINES, AND THEN CORRECT THE DRAWING OF
THE IN-BETWEEN, FLIPPING ALL THE TIME. |
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