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Autodesk 123D Sculpt+ 2.0 - 3D sculpting and modeling, OBJ, 3ds Max (free for iPad; iOS7+) External
488MB
19.3.2015
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ASSISTANT - a handy calculator for all AutoCAD dialogues (R14)
275kB
 
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PressureDrops - pressure drop MEP calculations for Revit 2026-2023, V1.2.0 (Trial; EN/CZ) External
24MB
10.7.2025
V1.2.0
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CWipeout - circular wipeout (LSP for AutoCAD)
545
31.8.2016
 
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FixArea13 - fix polylines with overlapping segments for Area calculations in AutoCAD 2013 (VLX LISP for AutoCAD)
13kB
6.4.2013
 
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LTspiral.xlsx - example of 2D spiral calculated in Excel, XY polyline ready to paste into AutoCAD LT
15519
9.3.2015
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MathCalc - online engineering calculator palette in AutoCAD 2025-2015 (VLX LISP for AutoCAD and LT)
20kB
5.3.2025
V1.0
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NumTab creates an automatic table with number-sequence and dynamic recalculation (A2006)
11kB
17.11.2008
V1.1
 
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PerpFrom - draw perpendicular from a curve foot, dynamic, transparently 'PF (VLX Lisp for AutoCAD)
14.5kB
23.3.2020
V1.1
 
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Pol2Cir - convert circular polylines and donuts to circles (VLX LISP for AutoCAD)
15kB
6.3.2016
V1.0
 
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Ray hatch patterns (PAT) for AutoCAD - circular rays 1°-60° (by M.Ribar)
3KB
6.1.2012
 
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TBRCALC - interactive dialog-based scientific calculator for AutoCAD
 
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DesignJet printing costs calculator External
3.7MB
1.5.2005
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How to load a LISP application (.LSP/.VLX) into AutoCAD? See the Tip 7245.

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