GRID is here. More machines are coming.

GRID is our first autonomous machine, and it ties rebar so crews don't have to spend hours bent over the rebar mat at the job site.

Arn Autonomy logo mark cast in concrete, close-up on a lime background
GRID rebar tying robot working on a rebar mat beside crew members on a construction site
GRID rebar tying robot driving down ramps from a pickup truck on a construction site.

Unload. Hit start.

There are no drawings to upload and no complicated models to build. GRID maps the mat on its first pass, plans its own route, and gets to work.
Operator holding a tablet next to GRID, Arn Autonomy's rebar tying robot, on a rebar mat

GRID

Available now
The first robot built from scratch for rebar tying
GRID autonomously ties rebar directly on the mat, automating one of construction's most repetitive, injury-prone tasks. It delivers consistent, inspection-ready ties that keep projects on schedule and costs down.
Built by Arn.
Learn More

What's coming to the jobsite

GRID is the first machine built on our autonomy platform, and is just the start. Every machine on our roadmap is built on the same technology, engineered to handle manual, tedious, and repetitive tasks.
Concept render of an upcoming Arn autonomous jobsite machine with a low, wide body.
Concept render of an upcoming Arn autonomous jobsite machine on wheels.
Concept render of an upcoming Arn tracked jobsite machine with a robotic arm.
Concept render of an upcoming Arn tracked jobsite robot with a gripper arm.
Technology

Perception, localization, mobility, and safety built into our autonomy platform.

LiDAR point-cloud view of a jobsite as GRID detects workers, rebar columns and material bundles.

Perception

Perception engine ensures site awareness of people, equipment, edges, materials, and obstacles.
GRID localizing itself on a rebar mat, with the work zone and rebar columns outlined in yellow.

Localization

Positioning and jobsite context that adapts as conditions shift.
GRID following its planned path across a rebar mat, highlighted in yellow.

Mobility

Machine control for rough ground, slab work, rebar mats, and changing paths.
GRID on a rebar mat with safety rings drawn around the robot and each nearby worker.

Safety

Safety protocols include perimeter awareness, auto-stop, remote e-stop and site-rule alignment.

Autonomy that compounds across the jobsite

Every job makes Arn's machines smarter. The platform learns from each jobsite and improves with every completed job.
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Top-down LiDAR scan of a construction site with GRID at the center.