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20" f/4 Newtonian - Page 2
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| Azimuth drive complete. Azimuth encoder is belt driven
on custom pulleys to maintain a low profile. |
Altitude drive complete. Protective enclosures for drives
have a .062" aluminum back panel, a .125" rolled ring, and a plexiglass cover. |
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| Altitude encoder is mounted in a protective box on the
eyepiece side of the scope. |
Altitude shaft is solidly fastened to adjustable plates
on the sides of the mirror box. Shafts turn in ball bearings mounted and concealed in the rocker frame tubing. |
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| The telescope is driven by a CAAD stepper driver and a
7 amp hour battery. The battery will drive the scope for about 1-1/2 nights in cold temperatures. |
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