The GTD Integra85 Focusing Rotator is included with libindi >= 1.6.0 Under Ubuntu, you can install the driver via:
sudo add-apt-repository ppa:mutlaqja/ppa sudo apt-get update sudo apt-get install libindi1
The Integra 85 is a focusing rotator. It has a clear aperture of 85 mm, a backfocus of 69 mm, and a travel of 10 mm. The focusing function of the Integra85 is based on 3 fine pitch leadscrews running in special low friction nuts that provide high loading capacity up to 8 kg with a travel of 10 mm in 188600 0.05 micron steps. The rotator is using a traditional wormwheel, the 360 degrees is divided up in 61802 steps. The focuser has an autocalibration feature.
You may set pre-defined presets for common focuser positions in the Presets tab.
The rotator position can be controlled via either setting the absolute ticks count or angle. To change the current absolute position to a new position without moving the rotator, use Sync to set the new desired position. Once Sync is set, the current absolute position shall report the synced ticks.
There are no known bugs for this driver. If you found a bug, please report it at INDI's bug tracking system at Github.