Gustavo Dower · build in public
I'm an engineer and developer. I build plugins for AutoCAD Civil 3D and Navisworks, plus desktop and web apps that take the repetitive work off engineers' hands — built in public, on GitHub.
Featured plugins
A productivity suite for Civil 3D. It started as a model-data exporter and grew: corridor surfaces, alignment renumbering, profile bands, structure replacement, topo export, and a task board — all in the ribbon.
Hydraulic sizing for potable water networks, right inside Civil 3D. It reads pressure-pipe networks, runs the EPANET 2.2 solver, and writes flows and pressures back into the model's Property Sets — without leaving the drawing.
Groups and renames clash detection results in Navisworks in seconds, using configurable rules, and cleans up viewpoints. Turns hundreds of loose clashes into groups organized by discipline. Works 100% offline.
Build in public
Maps a drive letter (P:) to a OneDrive folder, so tools that store absolute paths — Civil 3D, Revit — don't break between users.
A Civil 3D plugin that detects intersections between pipes and IFC elements and projects the points onto profile views, automating work that used to be manual and error-prone.
Turns your LinkedIn PDF into a complete personal site — résumé, portfolio, and your own URL — in seconds, free, no signup.
An IFC surface editor that runs in the browser: load the model, select surfaces, move, rotate and export — with pivot control, nothing to install.
A document-intake portal using the browser's File System Access API, with a Supabase backend. In production for Mestra Engenharia.
Exports Civil 3D topographic block attributes to Excel (.xlsx) or CSV, with dynamic columns per attribute. It was the seed that became CryoNova.
One thread ties it together: taking the tedious work off the people who design — from AutoCAD to the browser. More experiments (IFCExtractor, nfseNuvem, slidePurify…) on github.com/gustavodower.
About
I work at the border between engineering and software development. I know the pain of spending the day in AutoCAD, Civil 3D and Navisworks firsthand — so I build the tools I wish I had: fast, offline when possible, each one solving one specific task end to end.
I build in public: most of it becomes a GitHub repo, and some of it becomes a commercial product with licensing and support.
Stack
A plugin idea, an AEC/BIM automation, or just want to talk shop about building in public — reach out.