PurusCAD takes your coordinated IFC file straight to fabrication-ready spool drawings in minutes. Affordable, simple, and built specifically for small MEP shops — running on PurusKernel, an independent B-rep geometry engine written from scratch, not a wrapper around a foreign kernel.
You receive IFC files from engineers and GCs every day. Getting to fabrication drawings currently takes days — and costs a fortune.
Current fabrication software stacks cost $500–700 per seat per month — built for large firms, not 5–50 person shops.
IFC files from GCs can't go straight to fabrication. Teams spend days manually recreating geometry just to start detailing.
BIM tools, spreadsheets, shared drives, email chains — your spool data lives everywhere and nowhere. One change breaks the whole chain.
Every major CAD and BIM tool today runs on a small handful of licensed geometry kernels — Parasolid (Siemens), ACIS (Dassault / Spatial), or the open-source Open CASCADE. PurusCAD doesn't license or wrap any of them.
PurusKernel is a boundary-representation (B-rep) solid modeling engine written from scratch in pure C++ and DirectX — the same class of geometry math that powers professional CAD, engineered independently for MEP fabrication first.
Every boolean, curve, and surface routine is original code.
Pure C++ and DirectX — no browser, no cross-platform middleware.
The roadmap, the math, and the IP.
One Windows application takes your IFC model all the way to shop-ready drawings.
Import IFC 4.0 and IFC 4.3 files from any BIM authoring tool — no plugins or additional software needed.
Duct and pipe geometry converts automatically to native fabrication objects — segments, elbows, tees, reducers, and caps.
Spools are extracted automatically with cut lists, bill of materials, and piece counts ready for the shop floor.
Export fabrication-ready PDF drawings directly from PurusCAD. No extra software, no print drivers, no steps.
SMACNA duct sizing, ASME pipe standards, and NPS tables are built into the application — no manual lookup.
Windows desktop app. No cloud upload required. No subscription lock-in. Your project files stay on your machine.
Figures below are from internal MVP development testing, not production customer usage.
Building PurusCAD end to end — the geometry kernel, the MEP fabrication pipeline, and the application — with 18+ years of industry experience. No outsourced core technology, no third-party CAD SDK.
Follow the build on X →PurusCAD is in active MVP development. Join early access to follow progress, get first access when licensing opens, and help shape the product with direct founder feedback.
No spam. One email when licensing and availability are announced.