Are you spending too much time on repetitive tasks in AutoCAD—like counting blocks, drawing standard details, or batch-renaming layers? LISP routines ( .lsp files) are the secret weapon that can automate these chores instantly.
Unlock Productivity: A Guide to Downloading & Using AutoCAD LISP Routines autocad lisp download
Have a specific task you want to automate? Reply with what you do daily—chances are, a LISP already exists for it. Are you spending too much time on repetitive
(defun C:TC ( / ss i ent elist str newstr) (setq ss (ssget '((0 . "TEXT,MTEXT")))) (if ss (repeat (setq i (sslength ss)) (setq ent (ssname ss (setq i (1- i))) elist (entget ent) str (cdr (assoc 1 elist)) newstr (if (eq str (strcase str t)) (strcase str) (strcase str t)) ) (entmod (subst (cons 1 newstr) (assoc 1 elist) elist)) ) ) (princ) ) TC Pro Tip: Create a master folder for your LISP files and add its path in AutoCAD (Type OPTIONS → Files → Support File Search Path). Then add that folder to the Startup Suite once—every routine inside will auto-load. Reply with what you do daily—chances are, a
Open the .lsp file in Notepad before loading it. Scan for suspicious words like (command “_.erase” “_all”) , (vl-file-delete) , or long strings of random characters. One Routine to Start With (No Download Required) Try this simple routine to swap selected text case. Open Notepad, paste the code below, save as ToggleCase.lsp , then load it via APPLOAD.