1/2" end mill ripping through the acrylic lens 3000rpm, 40 inches per minute, .170" depth of cut. All the white stuff is chips, most are in the air. Sounded like a chainsaw going through the material but had a really nice finish. This step takes about fifteen seconds from grabbing the tool to finishing the cut.
Tool change @10 seconds cut to cut, 4 second tool changes.
Cutting the bevel on the top of the lens, 3500rpm, 60IPM, very quiet cut takes about ten seconds
The finished part, poor focus. All I had left to do was clean the paper fuzz off and put it on the stack.
There's around 80 lenses in this picture. The big pile on the left is the first process that cuts to bottom to size and form so the vise can grip it for the process shown above. After fourty parts in fourty-two minutes I shut it down, 9pm, and it looked like it snowed inside the machine.
I'm stoked. PM's will be forthcoming. I hope to get the rest of the lenses done and back into the bezels tomorow evening after work.
Guys, thanks for your support with this project
Jamie
in that picture alone there is 83 lenses! you had/have a genious idea on these bezels 
ok now i know why all the replies.
never even looked at the post till tonight.
