herringbone gears both
thingiverse
Customized version of http://www.thingiverse.com/thing:6544 Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=6544 Instructions Using the following options: gear2_bolt_sink = 1 gear1_teeth = 14 gear2_setscrew_offset = 0 gear1_captive_nut_h = 3 gear1_captive_nut_d = 7 distance_between_axels = 70 gear1_setscrew_offset = 6 gear2_captive_nut_h = 1 gear2_captive_nut_d = 4 AT = 0.03 generate = 1 gear1_setscrew_d = 3.85 gear2_rim_margin = 7 gear_shaft_h = 12 gear2_cut_circles = 6 gear2_setscrew_d = 2 gear1_shaft_d = 3.5 bridge_helper_h = 4 gear2_bolt_hex_d = 8 gear2_teeth = 15 gear2_shaft_outer_d = 9 gear_h = 18 gear2_shaft_d = 6
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