Table 2: Comparison of the specifications.

Specification

Omni

CombOmni

Delta.6

Sigma.7

Translational workspace (mm)

70 × 160 × 120

100 × 200 × 200

∅ 400 × 260

∅ 190 × 130

Workspace volume (mm3)

1.344 × 106

4.0 × 106

32.67 × 106

3.686 × 106

Dexterous workspace (sr)

7.07

Up to 10.78

0.46

6.37

Translation forces (N)

3.3 ([2.1 2.6 3.0]T )

[4.1 5.2 5.8]T

20.0

20.0

Torque (mNm)

0

150

150

400

Translation resolution (mm)

0.05

0.15

0.02

0.0015

Rotation resolution (deg)

\

< 0.1

< 0.04

0.013

Stiffness (N/mm)

[1.26 1.02 2.31]T

[2.22 1.96 4.26]T

14.5

14.5

Interface

IEEE 1394 FireWire®

IEEE 1394 FireWire®

USB

USB

Price (USD)

~$1500

~$3000

~$55000

~$80000