In engineering drawing, a single double-sided spring door is sometimes used, and the specific drawing steps are introduced here.
cad2014
Open cad and use the Line tool to draw a vertical line, as shown below.
Using the Rectangle Tool, draw a rectangle to the left of the vertical line, as shown below.
Use the Line Tool to draw a straight line perpendicular to the rectangle, as shown below.
Using the pruning tool, trim away the excess rectangles as shown below.
Using the image tool, mirror the remaining rectangle to the right, as shown below.
Remove the auxiliary wire, as shown below.
Draw a circle with the midpoint of one side of the two rectangles as the radius, as shown below.
Use the Line Tool to draw two line segments as shown below.
Using the pruning tool, trim away the excess circle as shown below.
Use the image tool to mirror the arc and radius, as shown below.
Delete the radius connecting the two midpoints, as shown below.
Change the upper arc and radius to a dashed line, as shown below.
After confirmation, we have completed the drawing of a single double-sided spring door, as shown below.