Fire-fighting is an important as well as a dangerous occupation. A fire-fighter must be able to get to the fire quickly and safely so as to prevent further damage and reduces fatalities. Technology has bridged the gap between fire-fighting and machines allowing for a more efficient and effective method of firefighting. Robots can be used in many applications in industries, military, domestic applications. One of the major uses of Robots is an asset to human beings. Whether it is any kind of hazardous situations like a fire breaking out or a place full of landmines, Robots can easily work out a way out of these problems. So, let us discuss a Fire Fighting Robot.

Hybridization of a vehicle is one of the praising step as the substitution of conventional vehicle and also one of the best alternative solution to reduce the amount of automotive emissions. These vehicles over a last decade gain great attention due to eco-friendly nature and lower greenhouse gas emission as compare to conventional vehicles. Due to expensiveness and limited driving range hybrid vehicle is not getting too much appreciation from consumer side. This paper present comprehensive overview of hybrid vehicle and energy storage unit i.e. battery, diffusion of hybrid electric technology in vehicles, advantages, disadvantages and methodology.

A 3D Printer to replace the conventional printing method .3D printer is a method of transferring an image onto a 3D surface. To achieve the design and fabrication of a 3D printer we use stepper motor, heat bed, pla filament, extruder, timing belt, arduino. The goal of this project is to make a sustainable modification to the normal conventional printer to and to make a 3d printer which can able to produce real objects which leads to reduce the cost of any object which we want to manufacture with the help of 3d printer we can get a product replica and we can get an idea about the object so we can save money and time because if we want to manufacture a product then we need to design the product and the make a die of the design and then start the production but with the help of 3d printer we can the product with design only . so y using 3d printer we can save the time and cost of manufacturing in the industry.

This project will undertake the construction and implementation of a two-wheeled robot that is capable of balancing itself. The structural, mechanical, and electronic components of the robot will be assembled in a manner that produces an inherently unstable platform that is highly susceptible to tipping in one axis. The wheels of the robot are capable of independent rotation in two directions, each driven by a servo motor. Information about the angle of the device relative to the ground (i.e. tilt) will be obtained from sensors on the device. The precise type of sensor that will be used is yet to be specified. The tilt sensor may be an accelerometer, gyroscopic sensor, or IR sensor (to measure distance to the ground). Information from the sensors will be fed back to the Z8, which will process the feedback using a crude proportional, integral, derivative (PID) algorithm to generate compensating position control signals to the servo motors in order to balance the device.