FDM works on an Additive principle of laying down melted material in layers to create objects. Material from the filament spool gets extruded towards the nozzle, heated up and then laid layer over layer to form the 3-Dimensional object.
Photo-polymerizing resin gets hardened when exposed to light. This process is called photo-sensitive resin Curing/Photo-polymerisation. Light is made to trace over the resin vat, layer by layer as per the 3D model and cures it to form the 3D physical object.
This Additive Manufacturing technique uses a laser as the power source to sinter powdered materials. Bonding between the material is achieved by aiming the laser at specific points on the powder bed based on the 3D model, thus, creating the object.
Sometimes, to enhance print quality, 3D Printed Parts might require Post Processing. These include options like Chemical Treatment, Support Clearance, Painting etc.