The Wassi Group

08/26/2026

BIM modeling — you've probably heard the term. But what does it actually mean for a construction project?

We just published a straightforward article breaking it down — what BIM is, how it differs from standard CAD drafting, and how TWG uses laser scan data to build coordinated Revit models that give project teams an accurate foundation to design and build from.

Give it a read 👇
https://wassigroup.com/what-is-bim-modeling-construction-projects/

08/19/2026

Did you know that laser scan data played a key role in the restoration planning of Notre Dame Cathedral after the 2019 fire? Years before the fire, the cathedral had been laser scanned in extraordinary detail — creating a permanent three-dimensional record that photographs alone couldn't have replicated.

Most historic buildings in Illinois will never face something like that. But the principle applies at every scale — accurate documentation protects what makes historic structures worth preserving.

TWG just published an article on historic preservation laser scanning in Illinois — covering why laser scanning captures what photography can't, how our process works in sensitive historic environments, and notable projects we've completed throughout Central Illinois.

Give it a read 👇
https://wassigroup.com/historic-preservation-laser-scanning-illinois/

08/13/2026

Historic buildings rarely come with complete documentation — and physically accessing every part of an older structure to gather that information isn't always practical or appropriate.

For a recent project at Holy Trinity Catholic Church in Bloomington, IL, TWG used the Leica RTC360 to laser scan the full interior and exterior — and used that scan data to assess the condition of structural members in the attic without any invasive investigation.

See how it came together on the TWG Projects page. 👇
https://wassigroup.com/holy-trinity-catholic-church-laser-scanning-bloomington-il/

08/06/2026

Ever wondered what actually happens between a laser scanner arriving on site and your team receiving a finished drawing set?

We just published a full walkthrough of TWG's process — from site preparation and scanning through point cloud registration, quality control, and final deliverables. It's a behind the scenes look at how the work actually gets done.

Give it a read 👇
https://wassigroup.com/3d-laser-scanning-process-start-to-finish/

07/30/2026

Renovating an active hospital is unlike any other construction project.

Clinical spaces can't go offline without careful coordination. Operational constraints dictate how and when work happens. Construction zones sit directly adjacent to occupied patient care areas. Every design decision carries consequences that extend beyond schedule and budget.

For healthcare architects and engineers, that means starting from accurate existing conditions isn't optional — it's essential. Outdated drawings and approximated measurements don't meet the standard that active healthcare environments demand.

We recently published a guide breaking down how 3D laser scanning supports hospital renovation projects in Illinois — covering how TWG documents occupied healthcare facilities, where it makes the biggest difference, and three notable OSF projects we've completed throughout Central Illinois.

Worth a read if you work on healthcare renovation or facility planning projects in Illinois.

Read it here → https://wassigroup.com/healthcare-facility-laser-scanning-illinois/

Healthcare renovation projects demand a higher standard of accuracy than almost any other building type. TWG's laser scanning services give Illinois hospital renovation teams, architects, and engineers accurate existing conditions documentation they can plan and design from with confidence.

07/24/2026

Industrial facilities are complex environments — and outdated documentation makes them even harder to work in.

When pipe routes conflict with existing equipment or fabricated assemblies don't fit real field conditions, the cost isn't just time — it's operational risk. TWG laser scans industrial facilities throughout Illinois to capture accurate existing conditions your engineering team can actually plan from.

We just published a guide breaking down how it works and what TWG delivers for industrial clients. Give it a read. 👇

https://wassigroup.com/industrial-facility-laser-scanning-illinois/

07/16/2026

Wondering if your construction project needs professional CAD drafting services?

It's one of the most common questions we hear — and the answer depends on more than just project size. We put together a simple guide breaking down when projects benefit most from professional CAD services and what accurate drawings actually deliver for your team.

Give it a read 👇️
https://wassigroup.com/when-do-construction-projects-need-cad-drafting-services-illinois/

If you're planning a renovation, addition, or new construction project in Illinois and wondering whether professional CAD services are worth it — this guide breaks it down clearly.

07/09/2026

Designing a home addition means knowing exactly what you're working with before work begins.

For a recent project, we laser scanned an existing Central Illinois home before any design decisions were made. That scan data became the foundation for the new addition design — modeled in Revit and documented with permit-ready drawings the contractor can build from.

See how it came together on the TWG blog. 👇
https://wassigroup.com/home-addition-laser-scanning-revit-central-illinois/

When a Central Illinois homeowner needed a new addition designed accurately from the start, TWG laser scanned the existing home and used that data to design the addition and foundation in Revit — producing permit-ready drawings without the guesswork.

07/03/2026

🎆 Wishing everyone a safe and fun Fourth of July weekend from all of us at The Wassi Group!

We hope you get to spend it with the people who matter most. We'll see you next week!

06/25/2026

Ever heard the term "point cloud" and wondered what it actually means?

It's one of those industry phrases that gets used a lot without much explanation. So we wrote a simple guide breaking it down — what a point cloud is, how our scanner captures one, and why it matters for renovation and construction projects.

Give it a read 👇
https://wassigroup.com/what-is-a-point-cloud/

If you've heard the term "point cloud" but aren't sure what it means for your project, this simple guide breaks it down — and explains why it matters.