Based on Visual Lisp linked with the worm worm drive is designed to use Visual Lisp mechanical design of the new type of mechanical design methods. Because of mechanical design itself is an arduous and painstaking work, the traditional method of mechanical design there is a low efficiency of the design, calculation error, waste of manpower and material resources, and other issues. Visual LISP integrated development environment (IDE) is the standard Windows programs, which includes a Visual LISP Console window, a window Trace, a number of documents Debug window and the Watch window, and so on. In the document window it is easy to be the source of input and editing, different types of data show that there are different colors to show the difference between syntax highlighted keywords, a few button will be able to source for Align Order and grammar check, the process of loading (Load) have quick button, switch to the AutoCAD environment operational procedures are very convenient. Console can also enter a window, or LISP statements, to see the implementation of the results. Visual LISP Another notable feature of comparison is that it provides a powerful tool mode, in the past, the use of AutolLISP to design procedures, test procedures for the adjustment is a very troublesome thing, let alone a dynamic tracking and debugging, in order to find out Procedures hidden in the wrong must be inserted in the process of printing a large number of statements in order to inspect the implementation of procedures for the middle of the process, very inconvenient, and very intuitive. Visual LISP now in the process of integration in the environment to dynamically track and debugging is an easy thing, the user can tune like C + + debugging process as LISP program: including the design of breakpoints, single-step, etc., can also see a dynamic variable Value, so you can easily understand and control procedures for the implementation of the process, quickly find out the procedures in the wrong, or even wrong, and other variables were very subtle errors, such errors before it is very difficult to debug in the Visual LISP The emergence of the majority of the AutoLISP programming, who is a good thing, it user-friendly, easy to use and powerful, it can not only improve the efficiency of AutoLISP programming, but also for AutoCAD R14 and popularity of raising the level of application is also very Help.