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Laminated Object Manufacturing (LOM)
- Jun 05, 2018 -

Laminated object manufacturing (LOM) is one more rapid prototyping system that was developed by the California-based company Helisys Inc.

 

During the LOM process, layers of adhesive-coated paper, plastic or metal laminates are fused together using heat and pressure and then cut to shape with a computer controlled laser or knife. Post-processing of 3D printed parts includes such steps as machining and drilling.

 

The LOM process includes several steps. Firstly, CAD file is transformed to computer format, which are usually STL or 3DS. LOM printers use continuous sheet coated with an adhesive, which is laid down across substrate with a heated roller. The heated roller that is passed over the material sheet on substrate melts its adhesive. Then laser or knife traces desired dimensions of the part. Also the laser crosses hatches of any excess material in order to help to remove it easily after the printing is done.

 

 

After the layer is finished, the platform is moved down by about one-sixteenth of an inch. A new sheet of the material is pulled across substrate and adhered to it with a heated roller. The process is repeated over and over again until 3D part if fully printed. When any excess material has been cut the part can be sanded or sealed with a paint. If paper materials were used during printing, then the object would have wood-like properties, which means it needs to be protected from moisture. So to cover it with a lacquer or paint might be a very good idea.

 

Probably LOM is not the most popular 3D printing method but one of the most affordable and fastest. The cost of printing is low due to not expensive raw materials. Objects printed with LOM can be relatively big, that means that no chemical reaction needed to print large parts.