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sigma.7

The sigma.7 is the most accomplished master haptic interface ever designed by Force Dimension. Introducing a redesigned delta base, this device is the first commercial haptic interface to offer seven active degrees of freedom, including high-precision force-feedback grasping capabilities.

Finely tuned to display perfect gravity compensation, the force-and-torque-feedback end-effector offers extraordinary haptic performance, enabling instinctive interaction with complex haptic applications.

Designed for advanced aerospace and medical industries to enable elaborate control of dexterous robots, its highly ergonomic and distinctive design make the sigma.7 the reference device for safety-critical applications.

The sigma.7 is also the first and only commercial 3D force-feedback interface to have ever been certified and used in space

The device is available in left- and right-hand configuration and can be integrated in a dual workstation setup for bimanual operation.

sigma.7 specsheet

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Distinctive Design Features

Finely built around its unique parallel kinematics structure, the sigma.7 device is designed for performance. Its superior mechanical stiffness, combined with its real-time USB 2.0 controller, enables the rendering of high contact forces at a rate attaining 4 KHz. To provide the highest degree of haptic transparency, accurate gravity compensation is maintained in translation and orientation space by perfectly coupling passive and actuated components together. Each system is individually calibrated to ensure repeatable and optimal precision and performance. Its unique kinematics design perfectly decouples translations and rotations, enabling the sigma.7 to exceed the requirements of the most demanding applications. Force Dimension also provides advanced technical support for dedicated applications that require custom end-effectors for the sigma.7.

Application Development

A powerful SDK provides highly advanced control over all Force Dimension devices in both haptics and robotics mode. The Haptics SDK offers all the basic functions to read positions and to program desired forces in Cartesian space. Expanding these fundamental capabilities, the Robotics SDK leverages the Haptic SDK by introducing an advanced set of real-time routines to precisely control the position of the device. The Force Dimension SDK provides support for multi-threaded, multi-device programming and is available on a wide range of platforms including WindowsLinuxmacOSQNX and VxWorks. The combination of both haptics and robotics capabilities into a single unified framework allows developers to create powerful collaborative interfaces between people and machines.
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workspacetranslation
rotation
gripper
∅ 190 x 130 mm
235 x 140 x 200 deg
25 mm
forcestranslation
rotation
gripper
20.0 N
400 mNm
8.0 N
resolutiontranslation
rotation
gripper
< 0.0015 mm
0.013 deg
0.006mm
interfacestandard
rate
USB 2.0
up to 4 KHz
poweruniversal100V - 240V
platformsMicrosoft
Linux
Apple
Blackberry
WindRiver
Windows
all distributions
macOS
QNX
VxWorks
softwareSDK Haptics
SDK Robotics
CHAI3D
 
ergonomicsavailable in left- and right-hand configuration
structuredelta-based parallel kinematics
hand-centered rotation movements
decoupling between translation and rotation movements
active gravity compensation
calibrationautomatic
driftless
user input 1 simulated button using the force gripper
safetyvelocity monitoring
electromagnetic damping

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