An impossible bolt using a support nut to print two identical heads. For more information and instructions on the build please visit my Instructable (https://www.instructables.com/id/Impossible-Bolt/).

Bolt Settings: head_diameter = 17 head_height = 6 thread_outer_diameter = 11.85 thread_step = 1.5 countersink = 2

Nut Settings: nut_diameter = 17 nut_height = 7 nut_thread_outer_diameter = 12.35 (nut+ is 12.5, nut- is 12.1) nut_thread_step = 1.5 step_shape_degrees = 45

Support Nut Settings: nut_diameter = 20 nut_height = 4 nut_thread_outer_diameter = 12.35 (nut+ is 12.5, nut- is 12.1) nut_thread_step = 1.5 step_shape_degrees = 45