Engineered & manufactured in Palm City, Florida, USA 🇺🇸
The technology, explained

How construction 3D printing actually works.

No hype — here is the process, the machines, the materials, and the site requirements, the way we'd explain them to your project team.

The process

From digital model to structural walls.

STEP 01

Design

Your building is modeled in familiar CAD tools — SketchUp, Revit, or whatever your team already uses — then sliced into a print path with commercial slicers such as Simplify3D or Cura. Open formats and standard G-code, no proprietary lock-in.

STEP 02

Mix

The MAI®MULTIMIX mixes and pumps in one machine: patented mixing tools and a self-regulating water system keep the water/dry ratio constant — the variable that decides whether layers bond.

STEP 03

Print

The printer extrudes walls layer by layer — on-site or in a warehouse — while an operator supervises from any device that can connect to Wi-Fi. Print and extrusion speed adjust in real time.

STEP 04

Finish

Your existing trades take over: roofing, electrical (vertical wiring channels print into the walls), plumbing, and finishes proceed exactly as in conventional construction.

The digital toolpath

A wall is a path the machine follows.

Every wall begins as a toolpath — the exact route the nozzle travels, layer after layer. Your CAD model, built in SketchUp, Revit, or whatever your team already designs in, is sliced into that path by commercial slicing software such as Simplify3D or Cura and output as standard G-code — an open format, not a proprietary file. Your team can inspect every pass on screen before a single bag of mix is opened. What you see traced here is exactly what the machine executes on site.

The machine architecture

Why we build SCARA-arm printers, not giant gantries.

Most competitors sell gantry systems — enormous frames that surround the entire building and need cranes, crews, and three-phase power to erect. We took a different path: a six-component SCARA platform engineered to move like construction equipment, not like a factory installation.

Setup

Hours, not days

A SCARA-arm printer transports without a crane and sets up in hours. Gantry systems can take days of assembly before the first layer prints.

Power

110V standard service

Our printers draw 10A at 110V — a regular outlet. Most gantry systems require generator fleets or three-phase hookups.

Crew

Small trained team

One operator supervises printing; a small crew handles material. No specialized robotics staff on your payroll.

Transport

Moves like equipment

No wide loads, no rigging plan, no crane on the mobilization budget. The machine arrives, unloads, and prints — indoors or out.

Footprint

Beside the wall, not around the building

A gantry must surround everything it prints. Our arm works from its mast and track, so the site stays open for other trades.

Serviceability

Six components, no mystery box

Distal, proximal, track, controller, cart, mast — a modular platform engineered and supported from Palm City, Florida.

SCARA arm vs. gantry — the practical differences

Criterion
Pro Build 3D SCARA platform
Typical gantry system
Site power
Printer: 110V / 10A standard outlet. MAI®MULTIMIX pump: dedicated three-phase feed.
Three-phase hookup or generator fleet

Why it matters: The printer itself sips power from a wall outlet. Only the mixing pump needs a three-phase feed — one dedicated circuit or a single generator, not a fleet powering the whole machine.

Setup time
Hours, no crane
Days of assembly, crane required

Why it matters: Every idle day before the first layer is overhead — crane rental, crew standby, schedule risk.

Transport
Standard trailer
Flatbeds and rigging

Why it matters: Wide loads need permits, escorts, and planning. A trailer needs a hitch.

Site footprint
Compact — works beside the wall
Frame surrounds the entire building

Why it matters: Your other trades keep working while the printer prints. Nobody waits for a frame to come down.

Indoor printing
Yes — warehouse or on-site
Rarely practical

Why it matters: Weather stops being a schedule variable when you can print inside.

Print envelope
Extends along the track — walls as long as the rail
Fixed to the erected frame

Why it matters: Growing the envelope means adding rail sections, not engineering a bigger steel frame.

Control
Open Duet Web Control, standard G-code
Often proprietary software and service contracts

Why it matters: Your file, your machine — no license renewals, no vendor dependency for day-to-day operation.

Tap any row to see why it matters on a real job site.

Six components. Each one earns its place.

01

Distal

The outer arm mounts the extruder and lays the bead. Nozzle choice sets bead width and surface finish.

02

Proximal

The inner arm sweeps the print area with SCARA geometry — millimeter repeatability with no frame around the building.

03

Track

Adds a travel axis. The print envelope extends along the rail — full walls and structures, not one fixed cell.

04

Duet Controller / Wi-Fi

Open-source control electronics. Supervise and adjust from any device on site — no proprietary software lock-in.

05

Cart

Carries the entire machine along the track and repositions across the site — without a crane.

06

Z Rail Mast

The vertical axis. The arm climbs layer by layer to full wall height on a mast, not a building-sized frame.

Every component above is interactive on the printer pages — click through the numbered viewers to see each part on the actual machine.

Explore PB Elite Roadrunner Explore PB Heavy Duty
Control & software

Industry-standard tools your team can actually learn.

Duet Web Control runs in any browser — laptop, tablet, or phone. Print status, layer times, time remaining, and file management are live, and speed adjusts mid-print.

Duet Web Control main dashboard for Pro Build 3D printers Live print status in Duet Web Control
Materials

Printed with materials you can source locally.

Cementitious mixes — Sikacrete®-733 W 3D and 752 3D — and geopolymer blends, mixed on site from locally available components. Our Sika partnership runs deep: their printing materials are developed and tested in our Palm City facility. The Mixcell HD injects accelerants and coloring during printing for fast transitions, complex overhangs, and integrated color.

Stronger walls

Printed concrete achieves up to six times the strength of conventional block construction.

Rated

Hurricane, termite, fire, water

Permitted, inspected homes in Florida — including hurricane-rated construction — stand on this material system today.

Less

Waste and energy

Material is placed only where the design needs it — less waste, less site energy, no wood formwork.

Site requirements

What your job site needs. (Short list.)

Printer power110V / 10A standard service
Mixing & pumpingMAI®MULTIMIX — fed from bags, big bags, or silo; requires a dedicated three-phase feed
TransportPickup truck — no crane, no oversize permits
CrewOperator + small material crew, trained by us
EnvironmentIndoor (warehouse/prefab) or outdoor (on-site)
ConnectivityWi-Fi for browser-based control from any device

Ready to understand what this technology can do for your projects?

Talk with our engineering team — a working conversation about your projects, sites, and goals. No pressure, no obligation. Our team will reply as soon as possible.

Talk to Our Team