<title>TNG main axes motion control progress report</title>

Abstract

The TNG is an Italian 3.6 m Alt-Az telescope installed in La Palma, Canary Island. The drive and control system of the main axes is working since October, 1997. It has been used for some months to support the installation of optics and other mechanical subsystems. Since June, 1998 the control system is integrate in the overall TNG informatic environment. In 1998 TNG has seen its first light. After the installation of the rotator drive system and of the Nasmyth 'A' focus instrumentation, the TNG telescope project is in advanced optimization phase. This paper reports the recent updates in TNG axes motion control and the last most significant results.