How to draw slot inspection sheet with cad

1. Open the CAD software, select the appropriate drawing frame or page, and select the drawing scale. The ratio commonly used in civil engineering is 1: 50 or 1: 100.

2. Draw the shape of the inspection well on the drawing frame or page, which can be round or square.

3. Mark the position and size of the manhole cover above or on the side of the manhole. Manhole covers can be represented by rectangular or circular figures with dimensions.

4. The model, specification and material of the inspection well shall be explained in words on the drawings.