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Lecture Prototyping #8 February 9, 2006 Full PDS Due Schedule 2/14/06 Cost and Price of Products 2/16/06 Team Meeting Gantt Chart, Work Breakdown Structure Due Dr. Marie Guion University of Minnesota Information Please check with your advisors have they reviewed the mid-term schedule? midSKYPE Prototype Write down your definition of prototype. Ulrich and Eppinger..... Eppinger... "Anything which approximates the final product." product." Why prototype? Visualization purposes. To reduce risk and increase probability of success. But....they cost $$$ and time. But... 1 Styles Sketch Carved foam ProE Model Computer simulation Double or half scale Functional and non-functional nonEngineering model Display model Virtual Keyboard Prototype Cell phone 2013 We all expect the cellphone to get smaller while packing in an ever broadening array of functions. The real question is what it'll look it' like--inside and out in several like-- out years. To find the answer, we investigated dozens of on-theon- thebrink technologies, picking the brains of cellphone product engineers, industry analysts and lab researchers. They told us of cameras that zoom, screens that play Star Wars, and micro fuel cells that deliver days of continuous operation. ......Popular Science.... ......Popular Science... http://www.popsci.com/popsci/whatsnew/6ccf0e0796b84010vgnvcm 1000004eecbccdrcrd.html TV's of the future TV' Concept Car - Corvette Personal space vehicle - NASA 2 Porsche Le Mans Prototype 2 Prototype of Comanche Combat Helicopter Minos Light case crimping machine Class Exercise A furniture maker is considering a new line of chairs fabricated from a new plastic which can be cut, bent and bonded. Using cardstock create at least one prototype chair. You can sketch it first or jump right into creating a prototype. Algorithm prototypes *.exe file Computer code that has been commented. Steps to successful prototyping Clearly define the purpose...Why? purpose... What are you approximating (and not)? Determine the form of the prototype. cost, Determine construction plan. Test, gather data. 3 Purpose Technical feasibility Convincing the team it work? Fine tuning, working out the bugs. Typically done for a subsystem Engineering bench-model, "works-like" benchworks- like" Prototype subsystem...what do you have the subsystem... least amount of confidence in (strength, speed..) Concept Communication Focus group, trade show.. Testing customer reaction Convincing outside stakeholders. What/How to prototype Purpose defines what. Determine: works-like or looks-like workslooksDetermine: does it make more sense to do the equations, put it on autocad or go to the machine shop and build it? Consider virtual prototyping. Cheap/fast is good and usually sufficient. Watch out for time/$ costs. Prototyping Thoughts Dual prototypes are common. All stakeholders need to know what is real and what isn't. isn' Do it early and do it often. Go for simple and cheap. Foam-core or foam carved are effective for Foamlooks-like prototypes. looksDon't mix prototype with product. Don' Test and gather customer information. Try or twice scale models. Rapid prototyping New technology (1990's). (1990' "Art to part" CAD model to physical part" model. Good resolution, limited size and strength. Best for small plastic parts with complex physical shapes. U has Stratasys FDM 1650 Statasys FDM1650 rapid prototyping machine (www.stratasys.com). Turn your (www.stratasys.com). CAD file into a real part by "3-D printing". "3Parts formed from ABS plastic. Max size approx 6x6x6. Run times typically 2-6 2hours. Great resource which you should definitely take advantage of. It is very unusual for an engineering school to have its own RP machine. See TA for details. 4 WARNING Rapid is relative...can take several relative... iterations. Time consuming. Class Exercise #2 Determine what your design show booth will look like point out the prototypes. Do a perspective sketch. TURN THIS IN AT THE END OF CLASS. One per team. 02/14/06 Lecture #9 Cost and Price of Products Dana Lonn from Toro 5

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