Set OS 32 = 0 or OS 32=100 to generate full-sized isometric drawings. This is the default setting.
The following example shows the isometric drawing generated in the previous illustration at 71% of its original size. To produce this result, set OS 32=71.
Similarly, to generate an isometric drawing at 50% of its original size, set OS 32=50.
When you use this option switch, the entire isometric (frame and inner contents) is rescaled.
If you are using a 2D graphics system, such as AutoCAD, and you want to produce scaled down isometrics (for example, effectively A2 size - but scaled down to A3 on the output), then that reduction should be done in the graphics system, not with this option switch.