necessity is the mother of all kinds of inventions"

The old adage says, "necessity is the mother of all kinds of inventions" are true, and a machine, structure, system or new equipment is a result of the requirement. If a new object truly needed and desired, people will buy it as long as they do otherwise.
Before the new objects of any kind are produced, certain questions must be answered: is there a market that may be open to such things? And objects or equipment can be sold at a price where people are willing to pay for it? If the market which may be quite large and the estimated selling price seemed reasonable, the inventor made a plan or corporate officers may choose to continue the development, production and marketing plan for the new project

A machine, the machine structure or a new system, or even an increase in the existing system, there must be in the mind of the inventor, engineer planners before it became a reality. The first concept is usually written on paper or as an image on a computer screen. Later the concept was to communicate to others through language in the form of hand-drawn images that sketch plan, while the plan was developed further, the initial sketch was followed by others such as sketch calculation

The engineers and planners must be able to create a plan sketches, counting voltage, analyzes the motion, measure the parts, making the requirements for materials and details the methods of production, making the layout plan, and supervise the preparation of drawings and requirements that will controlling a lot of details about the manufacture, installation and maintenance of finished goods. To carry out many tasks that the engineers use hand sketches freely. They should be able to take notes and communicate quickly to the relevant officers and officers pendukung.Fasilitas in hand sketching and drawing skills to work in