If you're interested in creating your own Lisp files:

AutoCAD has a native FIELD command that can display the length of an object. However, the native field command is clunky when you want the total length of a group of lines (like a network of pipes).

First, let’s correct the search term: is almost certainly a typographical error. The correct file is tlen.lsp . The “LSP” stands for AutoLISP , the scripting language of AutoCAD.

Did this help you get TLEN working? Have a different LISP you want me to cover? Drop a comment below.

This is where comes in.