Auto-assembled, not yet reviewed

SSG-48 Adaptive Electric Gripper

Open-source BLDC parallel-jaw gripper with force feedback, 48 mm stroke.

Reproducibility89/100Strong source coverage, unverifiedCADBOMWIREFWBUILDLICREPHow it is computed
SSG-48 Adaptive Electric Gripper open-source 1-DoF robot gripper, 3D render from par6_ssg48_urdf.urdf
main assembly 3D · par6_ssg48_urdf.urdf

About SSG-48 Adaptive Electric Gripper

The SSG-48 is an open-source adaptive electric gripper built around a brushless DC motor and the Spectral micro BLDC driver. It offers a 48 mm stroke with adjustable grip force from 5 N to 80 N and current-based force feedback, making it suitable for collaborative manipulation and assembly. The repository ships STL/STEP parts, URDF/MJCF descriptions, a BOM folder, a cable building guide, and a full assembly manual. BOM/BOM.md lists quantities and links but no prices.

Licenses

Hardware
Apache-2.0
Software
Apache-2.0
Docs
Not published

Degrees of freedom

1 DoF gripper 1

Breakdown source

Parallel grippersource

How to build SSG-48 Adaptive Electric Gripper

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. Print the structural parts

    Print the body, lid, guide cover, gripper gear, magnet shaft and two jaws in PETG from the Gripper STL parts folder (V1 or V2 subfolder; V2 holds the large-bearing versions). Clean all support material before assembly.

    Motari summarygithub.com/Source-Robotics/SSG-48-adaptive-electric-gripper/...

  2. Source the drivetrain

    Source the parts in BOM/BOM.md: one GBM5208-75 BLDC motor, one Spectral micro BLDC driver, a 100 mm linear guide with two MGN7C sliders, a shaft coupler, a 6 x 2.5 mm magnet, 16 M3 brass inserts and the listed M2 to M4 screws.

    Upstream stepgithub.com/Source-Robotics/SSG-48-adaptive-electric-gripper/...

  3. Build the cables

    Follow Building_cables.md and the M8 connector contact-layout photos to assemble the power and CAN-bus cabling.

    Motari summarygithub.com/Source-Robotics/SSG-48-adaptive-electric-gripper/...

  4. Assemble the gripper

    Follow Gripper_assembly_manual.pdf: fit the MGN7C sliders into both jaws, mount the gripper gear, magnet shaft and magnet on the motor (a rack and pinion drive), install the motor and driver in the body, then slide the jaws onto the guide and close the lid.

    Motari summarygithub.com/Source-Robotics/SSG-48-adaptive-electric-gripper/...

  5. Configure and test

    Calibrate the Spectral driver and enable gripper mode and the thermistor over serial, then command position, speed and force over CAN with the Spectral BLDC Python API.

    Motari summarygithub.com/Source-Robotics/SSG-48-adaptive-electric-gripper/...
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.

SSG-48 Adaptive Electric Gripper bill of materials

12 rows

Cost to build

€773.50EURvendor kit
  • fully assembled SSG-48 gripper, store list price€773.50vendor kit

In the source currency, as read on 2026-09-30. Not converted, and not checked against current vendor prices: none of these is a Motari-verified checkout total.

SSG-48 Adaptive Electric Gripper parts, as the source lists them (read 2026-09-30). Prices are the source's, not checked against vendors.

SSG-48 Adaptive Electric Gripper bill of materials
PartQtySpecSourceConfidence
Spectral micro BLDC driverCAN-bus motor controller used for force-controlled gripper operation
1Spectral micro BLDC driver, CAN bus / FOC
Source Roboticsprice not listedREADME identifies the SSG-48 as based on Spectral micro BLDC drivers and links the gripper product/docs.
high
GBM5208-75 BLDC motorgimbal-style brushless motor; datasheet is shipped in the assembly manual folder
1GBM5208-75 (datasheet file: 5208-75T)
source BOM / assembly manualprice not listedrepository tree includes Assembly manual/5208-75T_motor_datasheet.pdf and the source BOM PDF.
med
3D-printed gripper body and jaw setmain body, lid, gear, jaws, fingers, magnet shaft and adapter parts are provided as STL/STEP files
1PETG printed parts from the Gripper STL parts folder (V1 or V2)
make yourself / Source Robotics filesfabrication cost not listedREADME states mechanical files are open source; the 3D sources include the URDF, jaw meshes, STL parts and STEP files.
high
Magnet shaft / feedback-related printed hardwareThe magnet is glued to the printed shaft for motor position feedback
1Printed magnet shaft carrying a 6 mm x 2.5 mm magnet
make yourself / source BOM PDFprice not listedRepository tree includes Gripper STL parts/Magnet_shaft.STL and STEPS/Gripper STEP files/Magnet_shaft.STEP; README documents force-controlled operation.
med
M8 connector cable assemblypower/CAN cabling for SSG48/MSG gripper connection
126 AWG 4-wire twisted pair, M8 4-pin male connector, M8 4-pin female connector
Source Robotics / generic connectorsprice not listedAssembly manual/Building_cables.md lists DIY cable parts and connector quantities with wiring diagrams.
high
Linear guideJaw guide rail
1100 mm
AliExpress link in BOMprice not listedSSG-48 BOM/BOM.md
high
MGN7C sliderOne per jaw
2MGN7C carriage
AliExpress link in BOMprice not listedSSG-48 BOM/BOM.md
high
Shaft couplerListed in BOM/BOM.md
18 mm hole shaft, M4 screw holes
AliExpress link in BOMprice not listedSSG-48 BOM/BOM.md
high
MagnetListed in BOM/BOM.md
16 mm diameter, 2.5 mm thickness
you source itprice not listedSSG-48 BOM/BOM.md
high
M3 brass insertsListed in BOM/BOM.md
1615 x M3 5 mm and 1 x M3 3 mm, 4.5 mm OD
AliExpress link in BOMprice not listedSSG-48 BOM/BOM.md
high
Screw setListed in BOM/BOM.md
1M2, M2.5, M3 and M4 screws in the quantities listed in BOM.md
you source itprice not listedSSG-48 BOM/BOM.md
high
XH and ZH lead cablesListed in BOM/BOM.md
2XH 2.54 mm 2P 300 mm (24 V) and ZH 1.5 mm 2P 300 mm (CAN)
AliExpress link in BOMprice not listedSSG-48 BOM/BOM.md
high

Rows from the source's own parts list 1

README.md@fc4433fmarkdown

Source rowQtyPrice and vendorLine
Source BOM and assembly instructions
1 source evidence record
PCrnjak/SSG-48-adaptive-electric-gripperno price listed
L24

SSG-48 Adaptive Electric Gripper source files

13 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.

SSG-48 Adaptive Electric Gripper in simulation

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

The 3D specimen on this page is converted from SSG48_gripper_description/URDF/ssg48_gripper/urdf/par6_ssg48_urdf.urdf at fc4433f.

Builds of SSG-48 Adaptive Electric Gripper

0 reviewed

No reviewed builds of SSG-48 Adaptive Electric Gripper 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 Source-Robotics/SSG-48-adaptive-electric-gripper: 2026-09-27 (checked 2026-10-01)

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-backed unpriced BOM evidence.

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 SSG-48 Adaptive Electric Gripper? Show its reproducibility score in the project's README. The badge links back to this page and updates with the score.

Badge: reproducibility 89/100

Markdown
[![Motari reproducibility score for SSG-48 Adaptive Electric Gripper](https://motari.io/api/v1/badge/ssg-48-gripper)](https://motari.io/r/ssg-48-gripper)
HTML
<a href="https://motari.io/r/ssg-48-gripper"><img src="https://motari.io/api/v1/badge/ssg-48-gripper" alt="Motari reproducibility score for SSG-48 Adaptive Electric Gripper" height="20"></a>

A score of 90 or more needs a reviewed build. How the score is computed