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AstroSystems Dobsonian Telescopes, Telescope Accessories and Parts
AstroSystems - Primary Mirror Cells
Primary Mirror Cells
AstroSystems computer designed Primary Mirror Cells are made from a frame of 1 inch thick, 22 ply aircraft
plywood on the 10-16 inches and 1.4 inch thick, 26 layer aircraft plywood on 18 inches to 32 inches for
strength and rigidity. These premium quality cells have a computer designed, 6061-T6 aluminum flotation
system that utilizes 27 point flotation on 24inches to 32 inches cells, 18 point flotation on 16 inch to 22
inch cells and 9 point flotation on the 10 inch to 15 inch cells. The flotation points allow the primary to
truly float, supporting it evenly and aiding in cooling. This design approach thermally isolates the primary
mirror and minimizes cool down time, especially on larger mirrors. New to mirror cell design is our exclusive
MTS (mirror transport system). Just back down the collimation knobs and the mirror gently comes to rest on
three cushioned transport pads. All the collimation bolts are set in flush with the back of the mirror cell
for a clean look. Save 30-40% by assembling and finishing yourself.