Question

prepare isometric scale to measure 40 mm and 74 mm.
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Answer 1

Answer:

don't understand your question zorry

Answer 2

Isometric scale:

Isometric projection is a technique for graphically displaying three-dimensional objects in two dimensions. It's an axonometric projection in which all three coordinate axes appear to be equally foreshortened and any two of them form a 120-degree angle.

Steps to draw isometric scale.

• Draw a horizontal line and mark a point as O.
• Draw a line OA that is 30 degree inclined to the horizontal line with the help of projector.
• Draw an another line  OB that is 45 degree inclined to the horizontal line with the help of projector.
• From the OB line mark 74 mm with help of the scale and mark the point as C.
• Now draw a vertical line from C which cuts OA line and mark that point as D.
• Now OD is the isometric scale for 74mm
• Isometric length can be calculated as,                                             Isometric length = 0.816 × normal length
• From the OA line mark 40 mm with the help of the scale and mark a point E
• Draw a vertical line from E which cuts the line OA and mark that point as F.
• Now OF is the isometric scale for 40 mm.

Final answer.

From the figure OD and OF are the isometric scale for 74 mm and 40 mm

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