Selective laser sintering

1990s. ‘Rapid prototyping ‘paved the road for all the 3d printing companies out today. (Rapid prototyping created prototypes for a manufacturer to create a prototype of a product with plastics before executing their plans and mass producing them from their required material.) The original advance in 3d printing technology started with MIT(Massachusetts Institute of Technology) and through 3d systems, a huge innovator in the 3d printing world. Charles Hull first created his Stereolithography apparatus(SLA) machine in 1983, and then 3 years later, in 1986, went on to patent his creation, and co-found 3d Systems with that success. On the other hand, Carl Deckard was working on his own RP(Rapid prototype) machine, which he termed Selective Laser Sintering(SLS). -For what may it be used (needs addressed and/or functions performed)? 3d printing, or…

with precise information of each layer. This information is then transferred to a printer. Liquid resin is then exposed to ultra-violet light to create the product layer by layer. After the whole process is finished, the finished product is rinsed in solvent and cleaned. This method is the oldest technique in the 3D printing history. The second method is called Fused Deposition Modeling (FDM).[6] It also starts by creating a 3D model with information of each layer on a computer. This data is…

of resin. An ultraviolet laser etches a pattern in the resin, and the build platform drops another increment for the next layer. Digital Light Processing (DLP) is similar to SLA but with the use of an LCD panel and digital micro mirrors laid out on a semiconductor chip. Fused Deposition Modeling (FDM) creates objects from the bottom up by heating and extruding thermoplastic filament. This is the only 3D printing process that builds objects with production grade thermoplastics. This is a big…

is also worth noting the environmental risks to human beings. Recent studies have shown considerable risks with printing materials and in the conclusions of the respective studies, startlingly comparisons were made ; 'authors compare the use of the machines to smoking cigarettes indoors and warn that operating some commercially available printers in poorly ventilated indoor environments poses health risks. Tom Campbell at Virginia Tech’s Institute for Critical Technology and Applied Science…

The melted plastic is placed layer by layer to create a detailed model. There are also SLA printers. SLA stands for stereo lithography. Similar to FDM, SLA uses an additive method as well; models are built layer-by-layer (FDM vs SLA: 3D Printing Explained and Compared, 2015). Figure 7: Wire Resin The difference between the two is that SLA printers use a curable photopolymer, usually in the form of a liquid resin (Figure 8). Applying a focused light or UV light cures the liquid resin. When…

The most recent example of this idea of duplication as opposed to original generation is the modern phenomenon of three-dimensional or 3D printing. There has been a huge amount of interest following 3D printing as it has transcended from a futuristic figment of the imagination to a shelf-stocked product in a number of years and can be purchased today from just €230. The incredibly innovative sensation that is 3D printing is seen to be completely ahead of its time and to have come out of nowhere.…

Case studies Many cases in the literature have utilized CT imaging to address bioarchaeological questions; however, predominately they focus on mummification studies, with only a few cases in reference to bone specifically. One such case was in the article Non-invasive Archaeology of Skeletal Material by CT scanning and Three-dimensional Reconstruction by Lynnerup et al. (1997). In this case the skeletal remains are of a very fragile and delicate 7000 year old ancient Sumerian skeleton that was…

Over the past twenty years, 3d printing has made its presence known within mainstream media. The first appearance of 3d printing in modern cinematography was released in 1998. The movie was titled “Small Soldiers” and it featured a scene where a toy was made layer by layer due to a laser, much like how a SLA printer functions. SLA printers are one of many different types of 3d printing commonly available today. The other most notable variety of 3d printing is FDM. FDM printers and SLA Printers…

3D printing is a mechanical process where solid objects are created by ‘printing’ successive layers of material to replicate a shape modeled in a computer has been adopted in numerous industries. Many people can benefit from this kind of technology such as wounded warriors that may have lost limbs in combat, or even those that have dysfunctional organs and could use a new organ. The creator of 3D printing, Charles Hull, on August 8th 1984 filed for a patent on his photo solidification apparatus.…

Topic 1: Detailed History of Ceramic Analysis in the Maya Lowlands Many influences from around North American archaeology apparently influenced the methods used by researchers when reviewing the historical trajectory of ceramic analysis in the Maya area. To follow this path, an examination of the earliest explorers in the Maya area is necessary. During the time of the first Mesoamerican explorers, such as Catherwood, Maudslay, and Maler, the Southwestern archaeologists have already created a…