Echidna is a fibre positioning robot installed on the Subaru telescope that feeds dual near-infrared spectrographs. The overall system includes a corrector and imager is known as FMOS (Fibre Multi-Object Spectroscopy). Echidna uses piezo-electric actuators to position a total of 400 fibre-spines at the telescope focal plane. Positioning occurs in parallel with a field configuration time of ~12 minutes.