Do and Di for Wheel & Axle, Wedge and Screw

Output distance for wheel and axle

Circumference of axle (2 x pi x axle radius)

Input distance for wheel and axle

Circumference of wheel (2 x pi x wheel radius) or circumference of revolution if defined as a handle

Output distance for wedge

Width or thickness of the wedge (of the hole if not fully breaking material)

Input distance for wedge

Length of the wedge (how deep the hole is if not fully breaking material)

Output distance for screw

Distance the screw moves into the material (pitch x number of turns)
- pitch = distance between threads

Input distance for screw

Distance your hold travels while turning the screw (2 x pi x radius of handle x number of turns)