got the crystal machined today - domed both sides - radius 150 mm / 6"
avg thickness 5 mm / 3/16"
here shown after a quick rub with # 1000 wetordry to remove the toolmarks
[IMG][/IMG]
the idea is to use a gaffer tape ball to screw the crystal against the viton rubber seal -
[IMG][/IMG]
the case is finished & ready for a gritblast & wirebrushing to make it look
"Lufwaffe grey"
[IMG][/IMG]