ISO

• When you take aim and shall divide in two, this can be done in line tool. Type 100/2, and it will make the line 50

• Everything should be made in 30 degrees

• F8 Ortho mode

• Object snap-settings-Snap and Grid-Isometric snap

Circle
• At the bottom left is a sign right – –

• Type in the command: isoplane. choose the right
• Use the ellipse tool to create Circle