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3D printing is a process of making three dimensional solid objects from a digital file. The creation is being done by using additive processes. In this process, an object will be created by laying layer by layer of material until the object is created. 3D printing is just the opposite if subtractive manufacturing. Subtractive manufacturing is hollowing or cutting out a plastic material or metallic materials with a milling machine. 3D printing is useful to produce complex ( shapes consuming less material when compared to traditional manufacturing methods.
Types of 3D Printing Technology: Fused Deposition Modeling (FDM), sometimes called Fused Filament Fabrication (FFF). Binder Jetting is also another technology.
Binder jetting is one of the technologies used for this process. In this method, two materials will be used. These two materials are Powder base material and a liquid binder. The powder will be spread in equal layers and binder will be applied through jet nozzles. This binder will glue the powder particles in the shape of a programmed 3D object. Once the print is finished, the remaining powder will be cleaned and will be used for 3D printing of the next object.
In our country, the cost of 3D printing service is calculated as per the following equation.
Start up cost + print time + filament_cost + average_maintenance cost_hours + Profit = asking_price
Different companies charge in different ways. Some will charge on the weight basis, some charge on the basis of per hour, some charge on the basis of per prototype printed. The charges will generally vary between Rs.250/ to Rs.500/- per hour. The charges will be around Rs.20?- per gram in some cases.
These are some of the companies in India.
1. Divide By Zero Technologies
5. JGroup Robotics