  SCUBA-2 is an innovative 10,000 pixel submillimeter camera due to be
delivered to the James Clerk Maxwell Telescope in late 2006. The camera is
expected to revolutionize submillimeter astronomy in terms of the ability to
carry out wide-field surveys to unprecedented depths addressing key questions
relating to the origins of galaxies, stars and planets. This paper presents an
update on the project with particular emphasis on the laboratory commissioning
of the instrument. The assembly and integration will be described as well as
the measured thermal performance of the instrument. A summary of the
performance results will be presented from the TES bolometer arrays, which come
complete with in-focal plane SQUID amplifiers and multiplexed readouts, and are
cooled to 100mK by a liquid cryogen-free dilution refrigerator. Considerable
emphasis has also been placed on the operating modes of the instrument and the
common-user aspect of the user interface and data reduction pipeline. These
areas will also be described in the paper.
