As shown in Figure 6, it consists of a counterbalanced gear and pinion elevation drive, a geared radial bearing for the aperture rotation axis, and a 4 wheel azimuth drive, with matching symmetry on the azimuth ring supports for homologous deformation of the ring. The azimuth and elevation axes have 2 drive motors each with differential torque to eliminate backlash. The telescope is well insulated, with a flexible insulated sleeve between the elevation and azimuth structures to maintain a comfortable working environment. In addition, the back-end electronics are temperature regulated with water cooled VME crates. DASI mounted on the 11 m high tower.
Access is enabled by a room under the telescope connected directly to the laboratory building.
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