AutoCAD · Civil 3D · AutoLISP
Drafting tools and tutorials from a working civil engineer.
Short, practical guides to AutoCAD and Civil 3D automation, plus the AutoLISP tools behind them.
TerraDraft
One toolset, two editions. Start free, upgrade if you need more.
FREE
TerraDraft Lite
7 tools
Seven free tools for contours, parallel polylines, hatches, viewports and numbering. Tested on AutoCAD 2025.
- CTT — Label contour elevations with one click.
- ACE — Set many contour elevations with one fence line.
- MPL — Draw one centerline, get the parallel set.
- PLHT — Turn wide polylines into solid hatches.
- VPO — Outline a layout viewport in model space.
- DF / DB / DAO / DBO — Draw order shortcuts.
- MNUM / AUTONOTE — Number blocks and notes automatically.
$34.99
TerraDraft Pro
11 tools
Everything in Lite, plus labels that update with the contour, auto-sync parallel lines, default layers and batch cleanup. One-time purchase.
- Dynamic CTT — Contour labels follow the contour, with a multiple mode.
- Auto-sync MPL — Parallel lines rebuild themselves, with presets and per-line layers.
- CONTELTXT — Turn elevation text into real contour elevations.
- DEFLAY — Switch layers automatically by command.
- XRCLEAN — Purge, audit and save many drawings in one run.
- ROTATEPOINTLABELS — Untangle COGO point labels in Civil 3D.
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Finally! How to Prevent Accidental Layout Changes in AutoCAD
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Prefer video?
Short screen recordings that show each command working on a real drawing.