3D Printing also known as Additive Manufacturing is a process of creating physical objects from digital models. The process of creating a 3D-printed object is done using additive processes. An additive process entails creating an object by placing successive layers of material until when the whole object is made. Each layer is viewed as a thinly cut cross-section of the final object.
How it works
It begins with creating a computer design of the object that you want to make. First, you must make a three dimensional image of what you want to print using a computer aided design (CAD) software application. The program cuts your object into many horizontal layers. Each layer is then placed on top of each other in an organized manner until the whole object is created.
Methods and technologies
There are disparate technologies in use by 3D printers. They mainly differ in how the subsequent layers are fabricated to make the final object. Some methods use a softening material to provide the layers while others use melting. Selective Laser Sintering (SLS) and Fused Deposition Modeling (FDM) are the major technologies employing this printing method. Another mode of printing is laying liquid materials that are solidified with disparate technologies. The foremost technology using this method is known as stereolithography (SLA).
Selective Laser Sintering (SLS)
Selective Laser Sintering is one type of 3D printer that uses a laser beam to heat and solidify the small particles of metal, plastic, glass powder or ceramic into a mass with the desired 3D shape. The laser joins the particles into a specific pattern for each layer and then repeats the process over and over again on new layers. All unused powder stays as it is and become a support structure for the item. The unused powder can be re-used.
Fused deposition modeling (FDM)
The FDM technology uses a plastic filament that is unwound from a coil and provides materials to an emission nozzle which can control the flow. The nozzle is heated to melt the materials and can be moved in vertical and horizontal directions by a mechanism that is numerically controlled, that’s controlled by a computer aided manufacturing software application.
Stereolithography (SLA)
The main method that photopolymerization is used to make a solid object from liquid is SLA. The technology uses a container of photopolymer resin and Ultraviolet laser to fabricate the layers one at a time. The laser beam traces a pattern on the surface of the liquid resin. Exposure to Ultraviolet light solidifies the pattern found on the resin and links it to the layer underneath.
For more: What is 3d printing
How it works
It begins with creating a computer design of the object that you want to make. First, you must make a three dimensional image of what you want to print using a computer aided design (CAD) software application. The program cuts your object into many horizontal layers. Each layer is then placed on top of each other in an organized manner until the whole object is created.
Methods and technologies
There are disparate technologies in use by 3D printers. They mainly differ in how the subsequent layers are fabricated to make the final object. Some methods use a softening material to provide the layers while others use melting. Selective Laser Sintering (SLS) and Fused Deposition Modeling (FDM) are the major technologies employing this printing method. Another mode of printing is laying liquid materials that are solidified with disparate technologies. The foremost technology using this method is known as stereolithography (SLA).
Selective Laser Sintering (SLS)
Selective Laser Sintering is one type of 3D printer that uses a laser beam to heat and solidify the small particles of metal, plastic, glass powder or ceramic into a mass with the desired 3D shape. The laser joins the particles into a specific pattern for each layer and then repeats the process over and over again on new layers. All unused powder stays as it is and become a support structure for the item. The unused powder can be re-used.
Fused deposition modeling (FDM)
The FDM technology uses a plastic filament that is unwound from a coil and provides materials to an emission nozzle which can control the flow. The nozzle is heated to melt the materials and can be moved in vertical and horizontal directions by a mechanism that is numerically controlled, that’s controlled by a computer aided manufacturing software application.
Stereolithography (SLA)
The main method that photopolymerization is used to make a solid object from liquid is SLA. The technology uses a container of photopolymer resin and Ultraviolet laser to fabricate the layers one at a time. The laser beam traces a pattern on the surface of the liquid resin. Exposure to Ultraviolet light solidifies the pattern found on the resin and links it to the layer underneath.
For more: What is 3d printing
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