Quote:
Originally Posted by AstroJunk
Impressive Bruce, what is the aperture size?
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Width of the slit is about 700 mm wide. Depends on where you want to cut the hole out. I designed the shutter system so that the OTA can view from horizon to past zenith.without the need for swing open doors.. My shutter setup rolls on aluminium rails.... it "over centres" on opening and closing so it it only needs one small rope and pulley to open and close the shutter.