Free applications and CAD utilities (mostly our freeware & trials) CAD Utilities and add-ins 7.8kB 875× 12.06.2019 HelixAlongPath.lsp - helix along a 3D path (by G.P.Cattaneo) FILE Size: 7.8kB • AutoLISP file (.lsp) β load using APPLOAD or drag-and-drop into the AutoCAD window. For automatic loading add the path to acad.lsp or acaddoc.lsp. Free Download ▼ β Close