Auto-assembled, not yet reviewed

Seeed reBot-DevArm

Open 6-DoF + gripper developer arm on Damiao or Robstride motors, 767 mm reach (B601-DM).

  • CERN-OHL-W-2.0
  • robot arm7 DoF
  • cost not published
Reproducibility83/100Strong source coverage, unverifiedCADBOMWIREFWBUILDLICREPHow it is computed
Seeed reBot-DevArm open-source 7-DoF robot arm, 3D render from reBot_B601_DM_v1.1_20260425.step
main assembly 3D · reBot_B601_DM_v1.1_20260425.step

About Seeed reBot-DevArm

The reBot-DevArm is Seeed Studio's open-source 6-DoF (plus gripper) developer manipulator, shipped in two interchangeable actuator variants: B601-DM on Damiao motors and B601-RS on Robstride actuators. It targets 767 mm reach (B601-DM) or 754 mm (B601-RS), 1.5 kg continuous payload and <0.2 mm repeatability, with a mostly CNC-machined aluminium structure complemented by 3D-printed covers and mounts. The repository ships STEP CAD for every part, a costed bill of materials with purchase links, power-module assembly steps (arm assembly is a video on the Seeed wiki), and a Python SDK plus ROS 1 / ROS 2 (Humble), LeRobot, Pinocchio and Isaac Sim integration. Hardware is released under CERN-OHL-W-2.0 and software under Apache-2.0.

Licenses

Hardware
CERN-OHL-W-2.0
Software
Apache-2.0
Docs
CERN-OHL-W-2.0

Degrees of freedom

7 DoF arm 6gripper 1

Breakdown source

Serial armsource

How to build Seeed reBot-DevArm

5 steps

Steps marked Motari summary condense the linked source; follow the source for exact instructions. Upstream step marks a step taken from the linked guide.

  1. Source motors and structure

    Acquire 4x Damiao DM4310 and 3x DM4340P motors, machine or order the aluminium parts, and print the ABS/PLA covers and gripper from the provided STEP files.

    Upstream stepgithub.com/Seeed-Projects/reBot-DevArm/blob/56061705bfe9f145...

  2. Build the power module

    Wire the Mean Well LRS-350-24 24V supply with the XT60E connector and IEC inlet inside the printed power enclosure.

    Upstream stepgithub.com/Seeed-Projects/reBot-DevArm/blob/56061705bfe9f145...

  3. Assemble links base to wrist

    Assemble the aluminium links, bearings and MGN9 gripper rail following the assembly video on the Seeed wiki. The BOM requires hot melt glue to lock the screws at each joint against loosening.

    Motari summarywiki.seeedstudio.com/rebot_b601_dm_getting_started

  4. Set motor IDs and wire the CAN bus

    Using DM_Tools and the USB-CAN adapter board, set each motor's CAN ID and master ID: motors 1 to 3 are DM4340P and motors 4 to 7 are DM4310. Never hot-plug the XT30 connectors.

    Upstream stepwiki.seeedstudio.com/rebot_b601_dm_getting_started

  5. Run the SDK and ROS stack

    Use the Python SDK then bring up ROS 2 Humble / LeRobot / Pinocchio for kinematics, planning and teleoperation.

    Motari summarywiki.seeedstudio.com/rebot_b601_dm_getting_started
Print timenot published
Assembly timenot published

Wiring, power and firmware are safety-relevant and shown for reference only. Check them against the source before building.

Seeed reBot-DevArm bill of materials

17 rows

Cost to build

The sources do not publish a cost total. The rows below are what they list, without a sum.

Seeed reBot-DevArm parts, as the source lists them (read 2026-09-30). Prices are the source's, not checked against vendors.

Seeed reBot-DevArm bill of materials
PartQtySpecSourceConfidence
Damiao DM4310 V4 brushless motorsMotors 4 to 7 (joints 4 to 6 and the gripper) per the Seeed wiki ID table; upstream lists 4 units at 120 USD/unit.
4DM4310(V4), CAN bus actuator class
Seeed Studio / Damiao from the project's BOM120 $/unitreBot DevArm B601-DM README.md line 131 at 5606170
high
Damiao DM4340P V4 brushless motorsMotors 1 to 3 (joints 1 to 3) per the Seeed wiki ID table; upstream lists 3 units at 175 USD/unit.
3DM4340P(V4), planetary CAN bus actuator class
Seeed Studio / Damiao from the project's BOM175 $/unitreBot DevArm B601-DM README.md line 132 at 5606170
high
CAN-USB driver boardHost to motor CAN bridge; upstream lists one unit at 15 USD/unit.
1USB to CAN motor driver board
Seeed Studio from the project's BOM15 $/unitreBot DevArm B601-DM README.md line 133 at 5606170
high
3D-printed arm parts setGrouped from source rows 53-71. Upstream lists individual printed parts and an average reference print cost, but not a store listing.
1Bambu ABS/PLA printed parts; 0.4 mm nozzle, 0.2 mm layer height, 15-45% infill depending on part
3D print yourselfAverage 50$ reference pricereBot DevArm B601-DM README.md lines 53-72 at 5606170
med
CNC / metal arm parts setGrouped from source rows 92-112. Upstream lists individual STEP parts and a market reference price, not a store listing.
1Aluminum Alloy 5052 CNC / sheet-metal parts; some parts note ABS high-infill print alternative
self-machine / fabrication serviceAverage 250$ market reference pricereBot DevArm B601-DM README.md lines 92-113 at 5606170
med
Bearing setGrouped from source rows 134-136 with upstream Amazon reference links and per-unit prices.
16707ZZ x1, 6803ZZ x3, AXK5578 thrust bearing x1
Amazon reference links13 $/unit, 13 $/unit, 12 $/unitreBot DevArm B601-DM README.md lines 134-136 at 5606170
high
MGN9 linear rail and slider blocksGripper slide rail and carriage blocks with upstream Amazon reference links.
1MGN9-170mm rail x1 plus MGN9 slider blocks x2
Amazon reference links23 $/unit rail; 10 $/unit slider blockreBot DevArm B601-DM README.md lines 137-138 at 5606170
high
Gripper gear and silicone padSource lists one gear and one silicone pad with reference prices.
1Module 1 boss-type gear, 16 teeth, 6 mm bore; 30x9x2 mm silicone pad
Amazon reference links44$/unit gear; 10 $ silicone padreBot DevArm B601-DM README.md lines 139-140 at 5606170
high
Arm screw and dowel hardware setGrouped from source rows 141-152. Quantities include plus/several notation, so this is listed here as one required hardware set.
1HM3, HM4, KM3, KA3 screw families plus M4 dowel pins
Amazon reference linkssome rows not pricedreBot DevArm B601-DM README.md lines 141-152 at 5606170
med
XT30 motor power cable harness setSource rows list four XT30 cable variants totaling seven cables.
7XT30 2+2 cables: 350 mm x3 and 200 mm x4, angled/straight variants per source
cable references from the project's BOM4 $/cable and 3 $/cablereBot DevArm B601-DM README.md lines 154-157 at 5606170
high
Mean Well LRS-350-24 power supplyPower module supply with upstream Amazon reference link.
124 V, 14.6 A, 350 W AC/DC supply
Mean Well / Amazon reference link$27.35reBot DevArm B601-DM README.md line 176 at 5606170
high
Power module purchased electrical partsGrouped from source rows 177-180. Source lists quantities and reference prices for power-module purchased parts.
1US AC cable, XT60E fixed output connector, AC wiring, IEC inlet socket
Amazon / AliExpress reference links$4.49, $9.99, $0.99, $1.98reBot DevArm B601-DM README.md lines 177-180 at 5606170
high
Power module screwsGrouped from source rows 181-183. Source lists small hardware quantities and prices.
1M4x10 countersunk hex socket screws, M4x6 button head screws, M3x8 button head screws
generic hardware from the project's BOM$0.37, $0.36, $0.32reBot DevArm B601-DM README.md lines 181-183 at 5606170
high
Power module printed coversGrouped from source rows 190-192; not separately vendor-priced.
1PLA printed front cover, rear cover, and sliding front cover
3D print yourselfprice not listedreBot DevArm B601-DM README.md lines 190-192 at 5606170
med
Assembly toolsSource lists screwdriver set and woodworking clamps as assembly tooling.
1Hex key screwdriver set plus two 6-inch G clamps
Amazon reference links16$ screwdriver set; 20 $/unit clampreBot DevArm B601-DM README.md line 153 and line 165 at 5606170
high
Hot melt glueThe BOM says builders are required to buy it for thread locking
1for locking the hex socket screws at each joint
you source itprice not listedreBot DevArm B601-DM readme, BOM warning
high
Signal-Power Separation BoardListed in the Seeed wiki preparation list, not in the repo BOM
1signal and power separation board
Seeed Studioprice not listedSeeed wiki reBot B601-DM getting started
high

Rows from the source's own parts list 81

hardware/reBot_B601_DM/readme.md@5606170markdown

Source rowQtyPrice and vendorLine
Robotic Arm Base Platform
1
vendor not listedno price listed
L53
Robotic Arm Base Link
1
vendor not listedno price listed
L54
Upper Arm Left Filler
1
vendor not listedno price listed
L55
Upper Arm Right Filler
1
vendor not listedno price listed
L56
Upper Arm Center Filler
1
vendor not listedno price listed
L57
Upper Arm Horizontal Limit Block
1
vendor not listedno price listed
L58
Arm Handle
1
vendor not listedno price listed
L59
Lower Arm Left Filler
1
vendor not listedno price listed
L60

73 more rows in hardware/reBot_B601_DM/readme.md

Seeed reBot-DevArm source files

6 files

Files stay in the upstream repository under their own licenses; these links open them there. The 3D model on this page is Motari's conversion of the file named under Simulation.

Seeed reBot-DevArm in simulation

Robot description files a simulator or CAD tool can load, linked at the commit they were found.

No URDF, MJCF, SDF, USD or Onshape model has been found in the sources.

The 3D specimen on this page is converted from hardware/reBot_B601_DM/reBot_B601_DM_v1.1_20260425.step at 5606170.

Builds of Seeed reBot-DevArm

0 reviewed

No reviewed builds of Seeed reBot-DevArm yet.

A build log records the evidence (photos, a video, your repository), what the build cost, how long it took and what you changed. Each one is checked by Motari (until a maintainer claims this page) before it shows here, and reviewed builds count toward the reproducibility score.

Sources and provenance

Sources

Last push to Seeed-Projects/reBot-DevArm: 2026-09-30 (checked 2026-10-01)

Related links

How this page was made

Assembled from public sources on 2026-06-04, not yet reviewed by the maintainer. Each figure links to where it is stated; a value the sources do not state reads "not published". Last source review: source BOM 5606170; total unverified.

Original files stay intact and separately licensed; Motari adds only the summary on this page. Maintainer? Request a correction or removal.

Badge for the README

Maintain Seeed reBot-DevArm? Show its reproducibility score in the project's README. The badge links back to this page and updates with the score.

Badge: reproducibility 83/100

Markdown
[![Motari reproducibility score for Seeed reBot-DevArm](https://motari.io/api/v1/badge/rebot-devarm)](https://motari.io/r/rebot-devarm)
HTML
<a href="https://motari.io/r/rebot-devarm"><img src="https://motari.io/api/v1/badge/rebot-devarm" alt="Motari reproducibility score for Seeed reBot-DevArm" height="20"></a>

Not fully met yet: wiring diagram (partial). The score is read from the project's own sources, so publishing what is missing is what raises it. A score of 90 or more needs a reviewed build. How the score is computed