Carry Case

What are the best mechanical properties for a carry case?
I am to design a carry case for electrical equipment using CES edupack 2011. I am to Select materials and process methods to make a light travel case for electrical equipment (two models – cheap; and up-market, high quality, minimum weight ones).
So far, I think what is important is;
Hardness,
Compressive strength,
poor conductor,
good insulator,
materials that can be shaped using casting or moulding.
and then arranged by price/density.
I am getting stupid things such as glass. So maybe add tensile strength. I am only getting ceramics as choices, I know cases would probably be made out of tough plastics or metals. What properties am I missing?
Cost, weight, ease of shaping/manufacture.
Note that it is weight of a case rather than density of material.
Big Wilson Carry Case from Chuggington Fits 17 diecast trains Disney Learning Curve
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Everydaysource Red with Keep Calm And Carry OnQuote Silicone Skin Case compatible with Apple iPod touch 4th Gen $1.26 1X Silicone Skin Case compatible with Apple® iPod touch® 4th Gen, Red with “Keep Calm And Carry On”QuoteKeep your Apple® iPod touch® 4th Gen safe and protected in style with this silicone skin caseSlip your iPod touch® 4th Gen in to add a splash of color and deliver instant all around protection from scratchesConstructed from smooth, treated silicone that resists dirt and stainsProvides easy … |
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Fintie (Black) Folio Book Style Carry Case For Amazon Kindle Paperwhite with Auto Sleep/Wake Feature 8 Colors Options $5.99 … |
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Black Built-in Bluetooth Keyboard Leather Housing Carry Case Cover For Apple iPad2 iPad 2 2nd $18.29 Please kindly notice before purchase:Order will be shipped via prior registered airmail(7-11 days delivery time when parcel shipped out in 17-28 days indicated by amazon system),Tracking number is available. We save shipping postage for buyer from this.Thanks for your understanding. This iPad 2 leather case comes with a built-in bluetooth keyboard that seamlessly connects with the iPad 2 for a qui… |
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Fintie (Navy) Folio Book Style Carry Case For Amazon Kindle Paperwhite with Auto Sleep/Wake Feature 8 Colors Options $5.99 … |
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Vera Bradley Carry It All Wristlet $38.00 Use the adjustable wrist strap to carry as a handbag or a wristlet, or attach it to the handle of a larger bag… |
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Alpine Swiss Rolling Briefcase on Wheels Good for Sample, Catalog, Pilot, Attache Case Lawyer’s Briefcase Legal Size Laptop Case Sleeve, Overnight Bag Carry on Luggage w/ 1 Year Mfg’s Warranty $57.99 Made from the best possible materials and providing a great value. This briefcase is roomy, well designed and sturdy. Secured with two combination locks which can be set to separate codes it also featured a locking front compartment that expands. Inside flap features a basic organizer for pens and cards as well as a good size zippered pouch for other essentials. Large inside compartment features a… |
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Brother Hard Carrying Case $38.99 Brother Hard Carrying Case |
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Everki EKB424 Carrying Case (Briefcase) for 16 Notebook – Black $53.49 Everki EKB424 Carrying Case (Briefcase) for 16″ Notebook – Black |
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Everki EKP119 Carrying Case (Backpack) for 16 Notebook – Black $96.99 Everki EKP119 Carrying Case (Backpack) for 16″ Notebook – Black |
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Power A Carrying Case $46.99 Power A Carrying Case |
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Everki Beacon EKP117NBKCT Carrying Case (Backpack) for 18 Notebook - $118.99 Everki Beacon EKP117NBKCT Carrying Case (Backpack) for 18″ Notebook – Black |
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Belkin Quilted Notebook Carrying Case $26.73 Belkin Quilted Notebook Carrying Case |
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Everki Swift Light EKP116NBK Carrying Case (Backpack) for 17 Noteboo $44.49 Everki Swift Light EKP116NBK Carrying Case (Backpack) for 17″ Notebook – Black |
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Everki Commute EKF808S17 Carrying Case (Sleeve) for 17 Notebook – Bl $35.49 Everki Commute EKF808S17 Carrying Case (Sleeve) for 17″ Notebook – Black |
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Everki Advance EKB407NCH18 Carrying Case (Briefcase) for 18.4 Notebo $57.87 Everki Advance EKB407NCH18 Carrying Case (Briefcase) for 18.4″ Notebook – Charcoal |
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Everki EKB417BK18 Carrying Case (Briefcase) for 18.4 Notebook – Blac $138.99 Everki EKB417BK18 Carrying Case (Briefcase) for 18.4″ Notebook – Black |
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Samsonite 43115-1041 Carrying Case for Document – Black $81.98 Samsonite 43115-1041 Carrying Case for Document – Black |
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HP Carrying Case for Netbook $54.99 HP Carrying Case for Netbook |
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Kensington Sky Runner Contour Carrying Case $71.58 Kensington Sky Runner Contour Carrying Case |
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Ogio NEWT II MONO Carrying Case (Backpack) for 15 Notebook – Black $84.99 Ogio NEWT II MONO Carrying Case (Backpack) for 15″ Notebook – Black |
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HP Carrying Case for Tablet $63.99 HP Carrying Case for Tablet |
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Everki Titan EKP120 Carrying Case (Backpack) for 18.4 Notebook – Black $184.99 Everki Titan EKP120 Carrying Case (Backpack) for 18.4″ Notebook – Black |
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PC Treasures SlipIt! 07626 Carrying Case for 17 Notebook – Purple $22.02 PC Treasures SlipIt! 07626 Carrying Case for 17″ Notebook – Purple |
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PC Treasures SlipIt! 07638 Carrying Case for 15 Notebook – Pink $23.99 PC Treasures SlipIt! 07638 Carrying Case for 15″ Notebook – Pink |
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Power A CPFA075244-01 Carrying Case for Portable Gaming Console $19.58 Power A CPFA075244-01 Carrying Case for Portable Gaming Console |
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Carrying Case for Presentation Easels $104.99 Carrying Case for Presentation EaselsFor Unimate (QRT100TE) and Ultima (QRT101EL) Easels, sold separately. Handles, full zipper.Black |
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Codi Carrying Case for Notebook $62.99 Codi Carrying Case for Notebook |
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Codi Carrying Case for Notebook $64.99 Codi Carrying Case for Notebook |
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Samsonite Aramon NXT 43332-1041 Carrying Case for iPad – Black $23.99 Samsonite Aramon NXT 43332-1041 Carrying Case for iPad – Black |
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PC Treasures SlipIt! 07630 Carrying Case for 17 Notebook – Pink $22.49 PC Treasures SlipIt! 07630 Carrying Case for 17″ Notebook – Pink |
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Samsonite Xenon Carrying Case (Backpack) for 15.6 Notebook – Black $64.49 Samsonite Xenon Carrying Case (Backpack) for 15.6″ Notebook – Black |
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Looxcie Carrying Case for Camcorder – Black $9.09 Looxcie Carrying Case for Camcorder – Black |
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Case Logic VNCI-217 Carrying Case (Briefcase) for 17.3 Notebook – Bl $35.63 Case Logic VNCI-217 Carrying Case (Briefcase) for 17.3″ Notebook – Black |
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Manhattan Empire II 421577 Carrying Case (Briefcase) for 15.6 Notebo $27.98 MANHATTAN Empire II 421577 Carrying Case for 15.6″ Notebook – Black |
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MANHATTAN Empire 421560 Carrying Case for 17 Notebook – Black $22.99 MANHATTAN Empire 421560 Carrying Case for 17″ Notebook – Black |
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Lenovo Carrying Case for 13 Ultrabook $30.99 Lenovo Carrying Case for 13″ Ultrabook |
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Canon Carrying Case for Portable Scanner $35 Canon Carrying Case for Portable Scanner |
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Optoma Carrying Case for Projector – Gray $39.99 Optoma Carrying Case for Projector – Gray |
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Plantronics Carrying Case (Pouch) for Headset $14.49 Plantronics Carrying Case (Pouch) for Headset |
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Samsung Carrying Case for Tablet PC $71.99 Samsung Carrying Case for Tablet PC |
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Ogio Newt Carrying Case for 15 Notebook $86.49 Ogio Newt Carrying Case for 15″ Notebook |
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Kensington Carrying Case (Sleeve) for 10 Tablet PC $22.99 Kensington Carrying Case (Sleeve) for 10″ Tablet PC |
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Ape Case Carrying Case for Camera $21.49 Ape Case Carrying Case for Camera |
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Barska Carrying Case for Metal Detector $16.19 Barska Carrying Case for Metal Detector |
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Kroo ‘Seal’ 12-inch Laptop Carrying Case $27.99 Designed especially for notebooks 12″ screens, this case protects your computer in a high-density padded computer section. This case protects your computer in a high-density padded computer section. |
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Olympus Carrying Case for Camera – Black $17.49 Olympus Carrying Case for Camera – Black |