Solid freeform fabrication

Introduction/Background -What is the nature of the product or technology? The nature of 3d printing is nearly any area you can think of applying it to. -What is its development history? Rapid prototyping came about in the late 1980s and early 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 additive manufacturing can create nearly anything we as humans can possibly think of and convert into a CAD file. From things like airplane parts, to custom fitted dentures for grandma and grandpa, from a new hand that can be hooked up to an amputee, to a printed gun named “The Liberator.” Technical Description -Describe the technical details of the product or technology (how does it work)?…

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 advantage for engineers and manufacturers alike, as the material has excellent thermal, chemical, and mechanical properties. Selective Laser Sintering (SLS) uses powdered material in the vat rather than a resin. SLS uses a laser as a power source and does not require the use of support structures, as the material being created…

Paragraph 1 The research done by Haines on how the atomic structure of FePO4 varies when temperature increases from 294K to 1073 shows few crystal chemical relationships between SiO2 and FePO4. There is a first order variation of cell parameters and atomic orientations with temperatures lower than 980K and α-phase plays a dominant role over β-phase at high temperature. For the α-phase FePO4, the cell parameters increase with a non-linear trend when temperature increases linearly. The volume…

During the extraction process, the sand bath was set to 20℃. The 1.00 gram of ground nutmeg was transferred to the round-bottom flask (RBF) using the plastic funnel. Three milliliter of tert-butyl methyl ether and two or three boiling chips were added into the flask. The black plastic connector was used just like the distillation column with air condenser set-up. The flask was clamped to the ring stand using 3-pronged clamp. The flask was lowered into a slightly depression in the sand without…

The melting point of a substance is best described as the temperature at which a solid becomes a liquid (Bruice 2014). On the molecular level, when a compound melts the forces between the molecules become weaker. This is because when a substances heats up the kinetic energy between the molecules increase causing the molecules to vibrate. When the vibrations become strong enough for the molecules to move around and pass other molecules, the compound that is being heated up starts to melt and…

The Babyliss Pro Nano Titanium Rotating Hot Air Brush is a professional grade styling tool that uses ion technology to give you smooth hair that is shiny and free of frizz. It has various settings that allow you to control the type of dry and style that you want from your products. The Babyliss Pro is made with superior materials like its titanium barrel, which holds heat, and its bristles, which provide a better grip on the hair. For those who want a professional blow out look without the…

Spolia refers to the repurpose, or reuse of structural or decorative components from one piece, to another. Spolia, or “the spoils of war” is seen on a lot of different artworks, or monumental constructions. Like many roman constructions like the coliseum, the arch of Constantine doesn’t go unnoticed for its use of repurposed material. The use of spolia has many advantages that were very meaningful in the time of the Roman Empire. Recycling older material is a lot more cost effective than…

After the extraction, recrystallization, and determination of melting points for the unknown compound #4 were performed, and observations were noted, the results were obtained. The two compounds yielded were 4-tert-butyl phenol and triphenylamine. The masses obtained of each compound were 0.071g and 0.298g. The melting point ranges obtained are as follows; for the first the solid started to melt at 94 ˚C and was completely melted at 98˚C, and for the second the solid started to melt at 115 ˚C…

Coliscan easygel nutrient broth was stored in the freezer. Around 24 hours prior to sampling, the broth was moved to the refrigerator to thaw. The sampling procedure follows the procedure stated in the Coliscan Easygel Instructions. When we were ready to begin sampling, the thawed broth was placed into a cooler. We started sampling at Cornerstone pond then move to the Wyoming site, then downtown Grand Rapids, then Plainfield, and then Versluis lake. The procedure for Cornerstone pond and…

Diecast vehicles are made when manufacturers pour molten metals into a steel mold. Afterwards, they get decorated with plastic, rubber, other metal and glass. Before you purchase a diecast vehicle, first decide if you want a modern or vintage Honda diecast. Collectors normally hunt for the vintage pieces while children like the modern diecast models. That, however, is not always the case, and sometimes people collect all forms of diecast models. The diecast vehicles made after 1970 were…