I am making a birdhouse in the shape of a lighthouse which is circular. I don't have a lathe so I'm making 1" thick circles , reducing each one by 1/8" in diameter. I have to make about 15 of them. I can draw the circles with a compass but I'd like to draw the circles on a computer to increase the accuracy of the circles. I found a program to do this but when I print out the circle it's never the right size. Can anyone tell me how to draw and print out ,accurately,circles of varying diameters?
Thanks