This document discusses the major parts of a 3D printer including an Arduino Mega 2560, Ramps 1.4 board, stepper motors and drivers, timing pulleys and belts, bearings, a hot end, threaded and linear rods, a thermistor, ceramic heater, and end stop. It also covers the mechanism of the extruder, 3D printing process, Ramps 1.4 connection diagram, and structure of the 3D printer.

1. Different Colors of material
Jenish T.

2. Major Parts
 Arduino mega 2560

3.  Ramps 1.4

4.  Stepper motor and drivers

5.  Timing pulley and Timing belt
 Linear bearing and Simple bearing

6.  Hot end

7.  Threaded Rods
 Linear Rods

8.  Thermistor
 Ceramic heater
 End stop

9. Mechanism of Extruder

10. Printing Process

11. Ramps 1.4 Connection Diagram

12. Structure of 3D Printer