Reply To: BC1-1908 Homework – Burn Arakiss
@burnarakiss Glad to be of help! In case you asked for further explanation I put together a small animation, basically both “arms” rotate around a pivot part on the bottom. When the driver pushes the handle forward that rotates the whole arm like a big lever. But to get that motion to turn the brake pad section, a connecting arm is attached to both of them. 
The bone labeled “Driver Arm Upper” shouldn’t be bending as much but my rigging skills are more rusty than the carriage you’re making haha!