Extract with confidence
Read manhole labels, levels, pipe geometry and connections directly from your drawing, with manual mapping when project annotations differ.
The infrastructure software platform
One growing platform for focused infrastructure tools—turning repetitive production work into clear, dependable engineering workflows.
ROADS · WET UTILITIES · DRY UTILITIES2024—2027Civil 3D support
14 daysAutomatic free trial
100% localNo telemetry or uploads
BIM-readyStructured Civil 3D deliverables
Product 01
Gravity Engine
A production engine for gravity sewer networks inside Autodesk Civil 3D.
Move from unstructured drawing annotations to buildable, reviewable Civil 3D networks through one deliberate workflow. Extract, clean, build, connect and validate—without leaving your local environment.
Windows x64Offline licensingCSV + DWG workflows
Build complete networks
Create Civil 3D structures, pipes, alignments and profiles from a reviewed CSV—or build directly from the source drawing.
Validate before delivery
Run read-only slope and cover checks, review build summaries, and catch missing parts or invalid rows without changing the model.
One connected workflow
From source drawing
to a checked network.
BIM-compliant by design
Try the workflow Gravity Engine goes beyond automation. It creates structured Civil 3D networks aligned with BIM standards—ready for documentation, technical submissions and coordinated project deliverables.
Prepare
Confirm labels, layers, geometry and Civil 3D styles.
Extract
Center labels, read the drawing and export structured data.
Review
Check names, rims, inverts, diameters and connections.
Build
Generate a structured Civil 3D network aligned with BIM standards.
Connect
Add lateral structures and connected pipes.
Validate
Review slope, cover and delivery-readiness.
Download & test
Start with a real workflow.
Install Gravity Engine, activate the automatic 14-day trial, and use the prepared drawings to run your first extraction and network build.
01 / INSTALLER
CURRENT RELEASE · V1.0.0
Gravity Engine
One Windows x64 installer for Civil 3D 2024, 2025, 2026 and 2027.
02 / TEST FILES
Open the shared test-file library.
Access the latest DWG, CSV, shapefile, and other test files in the shared Google Drive folder. New training files can be added there without changing this download page.
Tutorials
Learn directly from the workflow.
— / —
Built to grow
Gravity is the
first engine.
InfraFlow is a growing family of focused infrastructure tools. Gravity Engine establishes the system: practical automation, engineering control and local-first project data.
01Gravity EngineAvailable now02Next InfraFlow toolIn development03Future systemsBuilt on the same logic