Customized version of http://www.thingiverse.com/thing:11790

Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=11790

Using the following options:

joint_r2 = 4
joint_r1 = 8
tooth_z = 4
tooth_y = 15
tooth_x = 9
tooth_s = 8
tooth_r = 3
tooth_n = 5
gap_h = 0.7
gap_w = 0.7
truss_n = 13
joint_a = 30
handle_w3 = 1
handle_w2 = 1
handle_w1 = 2
handle_cut = 12
handle_b = 5.5
handle_z = 16
handle_y = 16
handle_x = 125
link_z = 7
link_y = 13
link_x = 4