Astronomical Instruments
 
 







 
ASA Direct Drive Mount Specifications
TECHNICAL SPECIFICATIONS DDM160  
Software by Philipp Keller (www.astrooptik.com)
Diameter of the axis RA/DEC 160 mm hollow axle
Bearing Preloaded taper roller bearings 240/160 mm
Weight without counterweight-shaft Approx. 220 kg
Loading capacity (only instrument) 300 kg
Drive High torque motors in RA and DEC (Direct Drive without gear)
Operating voltage 24V < 40 A (1 - 3 A/Tracking)
Pointing <3“ RMS with pointingfile
Tracking precision <0.15“ RMS in 5 minutes
Encoder resolution 0.007“ on the axis
Moving speed 15°/sec. ( 25°/sec. optional)
Counterweight-shaft 80 mm high-grade steel axle
Counterweigts High-grade steel 32,5 kg, 16kg, 245mm
Object catalog Messier NGC, IC, PGC, etc.
   
Further features:  
USB Port, power and data link sockets (client specific) on the mount plate
Homing Parkingposition, re-positioning after power outage
Satellite- and comet tracking, etc.
Manual specifiable safety limits
Control via PC or Notebook (PC/Notebook not included in the price)
Tested interfaces to Maxim DL, Autofocus, The Sky, ASCOM, ACP, CCD-Autopilot, etc.
Different other drivers  
   
Optional Accessoires:  
Remote control possible through optional third-party software
Goto Hand Controller (2010)  
   
Technical Drawings:  
DDM160 base plate DDM160 folder
DDM 160 Telescope plate  
  ASA Website http://www.astrosysteme.at