Hello guys.
I was recently involved in a discussion with some customers concerning the calculation of the lens thickness needed to edge for a nylor frame.
my rule is :
if we speak about cr39 and resins hi:
avoid stock lenses and when you start to calculate To build the lens,add 1 mm to mininmum edge thickness for a positive or center thick for a negative one.
do i want to work too much in safe mode?
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