Describir: Foundations of technical drawing :

 _____       ___      _____    __   __    _____    _    _     ______  
|  __ \\    / _ \\   /  ___||  \ \\/ //  / ____|| | || | ||  /_____// 
| |  \ ||  | / \ || | // __     \ ` //  / //---`' | || | ||  `____ `  
| |__/ ||  | \_/ || | \\_\ ||    | ||   \ \\___   | \\_/ ||  /___//   
|_____//    \___//   \____//     |_||    \_____||  \____//   `__ `    
 -----`     `---`     `---`      `-`'     `----`    `---`    /_//     
                                                             `-`      
   ___    
  / _ \\  
 / //\ \\ 
|  ___  ||
|_||  |_||
`-`   `-`