by BHawthorne » Fri Mar 20, 2015 6:12 am
For example, my 2013 screen in this thread is 60" screen height, 60" radius, 180 degrees. That makes the 180 degrees (1/2 circumference) 188.5" long. The current 2015 screen I'm building is 60" screen height, 78" radius, 180 degrees. That makes the 180 degrees arc 245" long.