أرسل هذا في رسالة قصيرة: Kinematic simulation of an excavator

 _    _    _    _               ______   _    _   
| |  | || | || | ||     ___    /_   _// | |  | || 
| |/\| || | || | ||    /   ||   -| ||-  | |/\| || 
|  /\  || | \\_/ ||   | [] ||   _| ||_  |  /\  || 
|_// \_||  \____//     \__ ||  /_____// |_// \_|| 
`-`   `-`   `---`       -|_||  `-----`  `-`   `-` 
                         `-`