Santa Cruz, CA // Now Booking Q4 Installs

Open-Source Robotics for the Greater Bay Area.

Bridging the gap between open-source hardware and immediate business needs with fully assembled, pre-configured and locally supported automation solutions — delivered, installed and serviced from Santa Cruz.

Request a Demo → View the Hardware

Platform

reBot Arm B601

Configuration

6 DoF + Gripper

Payload

1.5 – 2.5 kg

Max Reach

754 – 767 mm

Repeatability

±0.1 – 0.2 mm

Hardware License

CERN-OHL-W 2.0

01 Services

From purchase order to first motion.

Open hardware is only cheap if your engineers' time is free. We absorb the sourcing, assembly, calibration and integration work so your team starts at the interesting part.

Hardware Sourcing

We hold inventory locally and handle the import path end to end. No six-week transpacific lead times, no customs brokerage, no surprise duties, no partial shipments of a 400-line BOM.

Stocked in Santa Cruz

Custom System Integration

Arms arrive assembled, calibrated and flashed against your stack — a working ROS 2 workspace, MoveIt 2 configuration, Isaac Sim digital twin, or a LeRobot teleoperation and imitation-learning pipeline on Jetson.

Boot to motion in < 1 hr

On-Site Setup & Training

We drive to you. Mounting and workcell layout, a half-day operator and safety walkthrough, and a US-based warranty channel with spare actuators and end effectors on the shelf — not in a container.

White-glove onboarding

02 Featured Hardware

Seeed Studio reBot Arm B601.

A genuinely open 6+1 DoF manipulator for embodied AI — open hardware, open firmware, open BOM, open algorithms. We build it, tune it, and stand behind it locally.

reBot Arm B601-DM — side profile 6 DoF + gripper

Close detail of a reBot Arm B601 elbow joint and machined linkage plate — **Joint detail**

reBot Arm B601-DM as shipped, with documentation mat and hex key set — **As delivered**

Variant Comparison
Parameter	B601-DM	B601-RS
Actuators	Damiao	RobStride
Rated payload	1.5 kg	2.5 kg
Max reach	767 mm	754 mm
Repeatability	< 0.2 mm	± 0.1 mm
Mass	≈ 4.5 kg	≈ 6.7 kg
Supply	24 VDC	48 VDC
Degrees of freedom	6 + gripper	6 + gripper

ROS 1 / ROS 2 MoveIt 2 Pinocchio NVIDIA Isaac Sim LeRobot Python SDK Jetson Orin / Thor

Seeed Studio's launch video for the 6 DoF reBot Arm B601-RS

Licensing

Commercially distributable by design.

On 11 May 2026 Seeed Studio moved the reBot Arm hardware from CC BY-NC-SA to CERN-OHL-W 2.0, with firmware under Apache 2.0. The earlier NonCommercial clause made commercial assembly and resale a non-starter; the current license expressly permits it, subject to reciprocal source disclosure on modified designs.

MBR operates entirely within those terms — we publish our mounting plates, workcell fixtures and integration configs back upstream. Open hardware only compounds if the integrators feed it. Upstream project →

03 Platforms

We build on what's genuinely open.

The reBot Arm is our flagship, but it isn't the only credible open platform. We source, assemble and integrate across the ecosystem — and we check the license on every one, because "open source" and "you may sell it" are not the same sentence.

Flagship

Seeed Studio

reBot Arm B601

6 DoF + gripper · 1.5–2.5 kg payload

Our primary platform. Brushless actuators, repeatability to ±0.1 mm on the RS, and a fully published BOM down to the screws. The one we stock, configure and warranty.

CERN-OHL-W 2.0 Source ↗

Enactic

OpenArm v1.1

7 DoF humanoid arm · force-controlled

Built for contact-rich manipulation and teleoperation data collection. The right choice when the research question is about compliance and force, not just position.

CERN-OHL-S 2.0 Source ↗

TheRobotStudio × Hugging Face

SO-ARM101

6 DoF · 3D-printed · leader/follower

The teaching workhorse. Cheap enough to buy a classroom set, and the reference platform for LeRobot imitation-learning pipelines. Permissively licensed end to end.

Apache 2.0 Source ↗

Pollen Robotics

Amazing Hand

4 fingers · 8 DoF · ~400 g

A fully 3D-printed dexterous hand for under $250 in parts. Designed for the Reachy 2 wrist but adaptable as an end effector on other arms.

CC BY 4.0 / Apache 2.0 Source ↗

Pollen Robotics

Reachy 2 & Reachy Mini

Humanoid platform · desktop from $299

Hugging Face's research humanoid, and the desktop Mini beneath it. Software is Apache 2.0, but parts of the hardware set carry a NonCommercial clause — so we supply and integrate units rather than building our own.

Apache 2.0 + CC BY-NC-SA Vendor ↗

RobStride

RobStride Actuators

Quasi-direct-drive modules · CAN bus

Not open hardware — the actuators are a proprietary product, though the ROS drivers are published. We list them honestly because they're the price-to-torque benchmark, and they drive the B601-RS.

Proprietary hardware Vendor ↗

Permissive — build and sell freely Reciprocal — commercial use OK, share modifications Mixed — some files restrict commercial use Proprietary — resale only

04 Who We Serve

Based in Santa Cruz. Serving Northern California.

Santa Cruz sits at an unusual junction. Thirty-two miles north over Highway 17 is San Jose and the densest concentration of technology companies and venture capital in the world. The same distance south is the Salinas Valley, one of the most productive agricultural regions in the country. We work on both sides of the hill and serve the entire Northern California region.

32 mi

Highway 17 to San Jose
and Silicon Valley

4–6 wks

Of import lead time
we absorb for you

1 invoice

Instead of a
400-line BOM

US-based

Warranty, spares
and service

R&D

University research labs

Robotics, marine and agricultural-automation groups that need a capable arm on a grant timeline — not a procurement saga and a semester of assembly.

SMB

Small & mid-size manufacturers

Salinas Valley and Watsonville shops automating pick-and-place, inspection, tray loading and machine tending without a six-figure industrial integrator contract.

EDU

Teaching & workforce programs

Community college and CTE programs standing up embodied-AI curricula on hardware students can actually take apart, study and repair.

OEM

Hardware startups

Teams that need three identical, reproducible workcells this quarter and a phone number that answers in Pacific time.

05 Contact

Request a demo.

Tell us the application and we'll bring a configured arm to your bench. Demos run about ninety minutes and we handle transport, mounting and teardown.

Principal

Alexander Pedersen

montereybayrobotics@gmail.com

alexander-d-pedersen ↗

Location

Santa Cruz, California

Service Area

Northern California — Silicon Valley · Bay Area · Santa Cruz · Monterey · Salinas