Free applications and CAD utilities (mostly our freeware & trials) CAD Utilities and add-ins 7kB 1137× 13.04.2019 Spring - create 3D spring solids, helical objects (VLX LISP for AutoCAD) FILE Size: 7kB • Compiled AutoLISP application (.vlx / .fas) β load with APPLOAD. No source code required to run. Free Download ▼ β Close