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Free applications and CAD utilities (mostly our freeware & trials)
Our shareware (trial)
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Go to file SplineConvert - convert splines, ellipses, arcs to 2D polylines (A2002, trial) 210kB 12.12.2002 More information Buy
Go to file SplineConvert 2006 - convert splines, ellipses, arcs to 2D polylines (A2006/2005/2004, trial) 210kB 15.6.2006 More information Buy
Go to file SplineConvert 2009 - convert splines, ellipses, arcs to 2D polylines (A2009/2008/2007, trial) 461kB 29.5.2008 More information Buy
CAD Utilities and add-ins
Go to file 2D3Dpoly - converts 2D polylines to 3D polyline objects (VLX Lisp for AutoCAD) 13kB 11.10.2016
V1.1
   
Go to file 2Dunfold - unfolds 2D curves to straight polylines (VLX for AutoCAD) 12kB 19.4.2009
V1.2
   
Go to file AddArea - add total area of polylines, regions and hatches by layers (VLX for AutoCAD) 21kB 9.12.2022
V1.6
   
Go to file ASCPOINT.LSP - imports a coordinate text file into AutoCAD points, polylines or block copies (T.Tanzillo+CADstudio) 12kB 21.1.2020    
Go to file BreakPls - breaks selected polylines at point objects (VLS Lisp for AutoCAD) 14kB 7.4.2020
V1.1
   
Go to file CADexcel - MS Excel plugin for importing XY/XYZ coordinate from Excel to AutoCAD (LT) points, polylines or blocks (also part of CS LT Extension) 894kB 27.4.2023 More information  
Go to file Centroid - draw center of gravity (CG/COG) point of polylines, regions and 3D solids, incl. volumes (VLX Lisp for AutoCAD) 16.8kB 3.4.2020
V1.1
More information  
Go to file DivBreak/MMeasure - breaks polylines and curves to a defined segment number/length - combines the BREAK and DIVIDE/MEASURE (bulk Measure) commands 13kB 20.2.2023
V1.3
More information  
Go to file FixArea13 - fix polylines with overlapping segments for Area calculations in AutoCAD 2013 (VLX LISP for AutoCAD) 13kB 6.4.2013    
Go to file Hatch2L - hatch area between two boundary polylines (VLX LISP for AutoCAD) 17kB 4.1.2017
V1.0
   
Go to file PL2ML - convert polylines (LWPOLYLINE) to multilines (MLINE) - LISP/VLX 1508 11.5.2007    
Go to file PLDiet (PLD) - simplify LWpolylines, reduce number of vertices, weed (by B.Hailey, CAB, K.Cooper; LSP for AutoCAD) 9825 3.9.2018    
Go to file Pol2Cir - convert circular polylines and donuts to circles (VLX LISP for AutoCAD) 15kB 6.3.2016
V1.0
   
Go to file Region2Poly - convert 2D regions to polylines (VLX Lisp for AutoCAD) 12.6kB 1.3.2017
V1.1
   
Go to file RvrsLine - reverse direction of LINEs and POLYLINEs (LSP for AutoCAD) 3567 16.3.2008    
Go to file SelfIntersect - check for self-intersections, duplicate and zig-zag/retracing vertices in polylines (VLX LISP for AutoCAD) 15.5kB 30.5.2016
V1.4
More information  
Go to file SlopeTick - draw slope tickmarks (batter lines, hatches) between two polylines 15kB 8.10.2011
V1.4
   
Go to file Sp2Pl - converts selected splines to polylines (VLX Lisp for AutoCAD 2011+) 12kB 24.2.2012    
Go to file ToMulti - convert polylines to multi-lines by definitions in the .Tab file (VLX LISP for AutoCAD) 13kB 16.12.2019
V1.3
More information  
Go to file Triangle - construct triangular polylines defined by sides and angles, optional labels (VLX for AutoCAD) 17kB 1.6.2020
V1.2
   

How to load a LISP application (.LSP/.VLX) into AutoCAD? See the Tip 7245.

Many other files also on Arkance Systems Helpdesk, CAD blocks in the Block catalog.