The Crank and Slotted Lever Mechanism is a classic mechanical system used to convert rotary motion into reciprocating motion with a variable stroke. It consists of a crank, a slotted lever, and a ram or slider, and is commonly used in shaping machines, slotting machines, and punching presses.

This mechanism is valued for providing quick return motion, which means the working stroke is slower for cutting, and the return stroke is faster — saving time and improving efficiency

Parts Used:

1. Crank – rotates to drive the slotted lever
2. Slotted Lever – transmits motion from the crank to the ram
3. Ram/Slider – performs the cutting or shaping action
4. Frame & Base – supports all components
5. Motor or Hand Crank – power source for crank rotation
6. Bearings & Bushes – reduce friction and wear