Altazitumutal platform 36 inch X 36 inch.The azimuth movememt is a full 360 degrees.Altitude movement is limited to 15 degrees. A 15 degree-high slice of the sky may be tracked for up to several hours. No modofication to your Dobson is required. No polar alignment is required as is the case with any altazimuth platform. The altazimutal platform run with altitude ant azituth motor controller cicuit board and stepper motors. I made the platform myself from the mecanical hardward and controller circuit board and stepper motors bought by TL System. I have the plateforme juste for one year. The asked price is 360.00 $ but negotable. I furnish the transport.
Quebec city, Canada