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PEFORMING ROR ANALYSIS FOR 3D PRINTER AND HOT TECHNOLOGY Background Software used in 3D printer systems manufactured by Spectrum LASER Corp. is currently able to automatically develop hollows, shells, and tree supports to save development time Network printing for use on multiple machines and at different locations globally is available. New software, called ITIL is being beta tested that will allow lot type industrial Internet of Things) connections between machines at distant locations. When onboard monitoring sensors detect that a part is about to fail, or it is time to replace one of several high profile parts, the IT software will automatically queue the parts manufacturing code onto a 3D printer that is detected to be locally ide or ready. The company believes it can design and produce the software, the 3D printers, and the accompanying computer equipment necessary to place this technology in a wide variety of arsh environments-chemically toxic to humans, in the underground in mines, on the ocean floor, in war-torn areas, etc. Information For this case, we will analyze the available computers that can provide the server function necessary to make this interlinking available and successful. The first cost and other parameter estimates, induding expected contribution to annual net cash flow, are summarized below Server 100,000 Server 2 100,000 Arst cost, Net cash flow. year 35,000 25000 Server 3 150000 50,000 year plus 5000 per year for years 2.3, and tradient) 70,000 maximum for years Son, even if the server is replaced $ Life, years 3 4 Case Study Exercises Use spreadsheet analysis to determine the following As if the MARR 12%, which server should be selected based on PW method to make the selection. D'fint You have to use LCM for PW calculations) answer the below questions 1. The PW for server 12 years) LCM cash flow 2 The PW for server 244 years) LCM cash flow- 3. The PW for server 3 (5 years) LCM cash flow- 4. Based on the PW analysis which option should be selected? 1- The ROR for each option, answer the below questions 1. The ROR for servert over 3 years operation equal = 2. The ROR for server over 4 years operation equal 3. The ROR for server over 5 years operation equal 4. Based on the ROR for each option which option we should sele? Use incremental ROR analysis between server 2 and server 3 to decide which is the best option at MARR = 124. Answer the below questions 1. As per the Descartes rule of signs for the NCF between servers 262, what is the maximum number of real number Delta J that exist? 2. As per the Norstroms criterion, is there a one real positive Delta *cat (enter yes or no? 3. Wit is the value of Delta" between server 26 37 exist ? 4. Based on the incremental analysis which option we should select if incremental analysis is applicable

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