Dual Axis Equatorial Platform. Capacity up to 20" telescope For Sale
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Dual Axis Equatorial Platform. Capacity up to 20" telescope:
Dual Axis Equatorial Platform. Capacity up to 20" telescope. Condition is "Used". Custom item by Tom Osypowski new in 2015. In good working order; has worked reliably all the way. I have changed out the original 2nd axis drive to greatly increase speed. Carries 20" telescope easily. 2nd axis is a piston driven by a cam. Self contained rechargeable battery. Many options on "RA" drive, this will take some getting used to... it is a very clever and effective system. Dual "RA" motors for true no backlash drive. I added a kind of lever to release weight from the drive roller. I made up the 2nd axis controller, this is a two hand job and there is no north or south... that depends on what the cam is doing which is hard to see. Operator will find the bizarre behavior of an alt/az mount on a 2 axis equatorial table when away from the meridian! I will include two pucks to raise the north feet; helps leveling. Also include pair of ramps to wheelbarrow typical large Dob mount up onto the table. Operator places the south foot on the piston. Loading a large telesope on this item is simply a matter of practice and patient learning. I have used this for high mag video of lunar planetary. Excellent results require the expected adjustments. Cannot recommend for long exposure prime focus astrophotography. May be possible in a permanent setting after long adjustment and experiment; no promises there. This is a fine custom built one of a kind item works great, effective and attractive. Over $3000 invested. I will personally deliver item to new owner free of charge east of the Mississipi, add $100 west.