My Customized GoPro mounts, and a library to expand

SummaryCustomized version of http://www.thingiverse.com/thing:62800 Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=62800 InstructionsUsing the following options: gopro_bar_rod_d = 31 gopro_bar_screw_nut_d = 6.01 gopro_bar_screw_head_d = 6.2 gopro_ext_len = 10 gopro_captive_rod_angle = 45 gopro_primary = double gopro_secondary_what = triple gopro_bar_th = 3.2 gopro_bar_screw_d = 3 gopro_rod_nut_th = 3.6 gopro_ext_th = 3 gopro_secondary_rotated = 0 gopro_rod_nut_od = 8.05 gopro_bar_gap = 2.4 gopro_captive_rod_id = 3.8 gopro_bar_screw_shoulder_th = 4.5 gopro_captive_protruding_h = 0.5