Use the FLATTEN command on your geometry before running the LISP to force all objects onto a 2D plane. Alternatively, run the AUDIT command to repair any underlying database errors in the drawing file. 4. AutoCAD LT Limitations
TLen.lsp is an AutoLISP script designed for AutoCAD. AutoLISP is a programming language built into AutoCAD that allows users to automate repetitive tasks and create custom commands.
If you want TlenLsp to work every time you open AutoCAD: autocad tlenlsp download work
You can find trusted versions of the file, such as on Turvill's Free Stuff.
If you work in civil engineering, surveying, or fabrication—where adding up line lengths is a daily chore— is a legendary piece of freeware. It is not a flashy plugin with a modern user interface; it is a classic AutoLISP routine that solves one specific problem with brutal efficiency: calculating the total length of selected objects. Use the FLATTEN command on your geometry before
The command shortcut might differ based on the script version.
: Look for threads curated by Autodesk Expert Elites. AutoCAD LT Limitations TLen
Most TlenLSP routines are compatible across various AutoCAD versions (AutoCAD 2020-2026+) [1]. How to Make TlenLSP Work: Installation and Usage