sagitta volume calculation
Posted 07 March 2013 - 06:14 AM
does anyone know of a source for calculating how much glass in volume is taken out from any given mirror blank when forming a sagitta =I am melting my own glass in preformed mould,s and wish to know if possible the weight of glass needed with some degree of accuracy.
Posted 07 March 2013 - 06:26 AM
where s = sag, R = radius of curvature
Posted 07 March 2013 - 06:37 AM
appreciate that=very quick !
was wondering if there,s a simpler method like a calculator which only requires an input of the diameter and the planned depth-thank,s
Posted 07 March 2013 - 06:56 AM
I will see if I can use both calc figures to my benefit. thank,s Dan