camera_pos_br = [ 22.300, 37.600 ]; // tl/br as seen from back
jack_pos = [ 14.38, 7.96 ];
-jack_dia = 9.1 + .5; // some jack I had lying around
+jack_dia = 10.64 + .5; // some jack I had lying around
noisecancelmic_pos = [ 19.54, 7.37 ]; // from rhs
noisecancelmic_dia = 1.75;