The mounting pier comprises a central 120mm diameter aluminum pipe and three triangular legs built out of standard aluminum extrusion profiles. One of the legs is adjustable in height in order to align the polar axis. With this feature the mounting pier can be used at different locations in my back-yard. At these positions there is a small metal receptacle to which the end of the adjustable leg accurately fits and a metal block that acts as a stop and datum for one of the other legs, determining the RA-alignment. The top side of the pier carries the German mount. |
Images below give some more impressions and details. From left to right:
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