FDM printers ( Technology where a plastic wire is melted)
FDM is a technique in which a thermoplastic plastic (such as ABS or PLA) is heated in a printhead so that the material becomes fluid, after which a movable nozzle deposits a thin wire of material. As soon as a layer is finished, the print bed lowers a layer thickness and the next layer is printed. This process is repeated until the complete model has been built. FDM is one of the most applied technologies.