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2022_2023_2nd 9 weeks_12

Page history last edited by John Codega 1 year, 9 months ago

12/7

  • Other things to think about:
    • A lot of you guys need to think about adding anthropometric data to both parts A and B.
      • Basically why are you making your thing the size you are making it?
    • Any version of your prototype you make that doesn't work (need to add holes / it's too big (or small) or it has some other type of issue) can be added to Part B as part of the conceptual design process.  Take some pictures and annotate them!  It might be a good idea!
    • We are still waiting on the 3 new 3D printers...I ordered them 6 weeks ago so I'm not sure what's happening with them at the district warehouse.  I'll get to your 3D printed stuff soon enough but it might take a minute -- I'm printing them as fast as I can! 

 

11/28 -12/20

  • Prototype Manufacturing!
  • Let's get it!!!!!!!!!!!!!!
  • There will be daily grades given for progress -- don't get anything done earn a 0 -- pretty simple.
  • Next we'll dip our toes into the PRODUCTION PLAN
    • First off you need this document -- Part C Construction Plan__MUST USE IN YOUR IA.docx
    • This is tough to do because we didn't actually make anything last year.
      • Take a shot at thinking about all the steps you need to do in order to produce your product
        • If it's 3D printed
          • Creating the CAD files (think hours)
          • How long to print it (again, hours are the way to go here)
            • Send my your STL files and I can tell you how much material will be used and how long it would take to print.
            • Joining parts -- acrylic glue (there is an actual name -- I'll find it)
              • Has to be clamped
              • Takes about 24 hours to bond securely  
          • How you plan on finishing it so it looks good
            • Each coat of primer requires 24 hours to cure (at least 3-4 to get a smooth surface)
            • Then sand (minutes here but depends on the # of coats) between coats
            • Then final sand (250 grit, 400 grit, 1000 grit, 2000 grit) and mineral spirits to clean up dust before each sandpaper treatment.
            • Then painting (again, spray painting).   2 - 4 light coats (depends on the color) w/ 24 hours between
            • Then possibly polyurethane if it needs to be protected from the elements / hard use.  2-3 coats with 24 hours and light sand in between coats
        • If it's wood
          • You need a CUT LIST -- example:
            • 2 - 2x10x3 pieces of plywood 
          • Measuring cuts (depends on how many pieces)
          • Actually Cutting the stock down (think about the right tool for the job)
          • Joining (wood glue needs at least 24 hours to dry) -- wood glue and some kind of mechanical connection (nails/screws/nuts and bolts/etc)
          • Sanding (80 grit then 150 grit then 250 grit then 400 grit) and removal of dust with mineral spirits)
          • Then finishing (stain/poly/paint -- you need to look up the requirements of each)
        • Other techniques
          • You'll have to school yourself on sewing/electronics/whatever.  These are NOT my wheel house,
      • Risk Assessment
  • Remember, first and foremost we are going to be SAFE while constructing 
    • No cutting or using any type of tool without direct instruction and supervision from CODEGA -- no exceptions. 
    • If you are acting in a dangerous way or using tools in a careless manner you will receive a 0 for the day and depending on the infraction could be earn a written referral and a workshop ban.  

 

11/21 & 11/22

  • FINAL CAD is due TODAY!
    • Upload to http://www.revaly.com
    • As a STEP file
    • Also make sure you title it FINAL CAD and your name please! 

 

11/15 - 11/18

  • Work on the Materials and Technique Charts
    • Once again, the examples and the checklist are key here
    • For 3 D Printing Stuff
      • Don't forget about FINISHING your product
        • You can't just 3D print the thing and call it a day.  You need to make it as close to a production part as possible.   
    • For the manufacturing techniques make sure you are using the LANUAGE OF THE CLASS
  • Your formal CAD is going to be uploaded to revaly.com by 11/21 or 11/22 so I can review it and give feedback over Thanksgiving break!
  • Continue Conferences! 

 

11/11 & 11/14

  • Show those materials!
  • Time for Part B conferences!
    • Please take notes during these meetings!
    • Make sure you have shared the most up to date version of your IA with Codega (but really if you have been working with OneDrive correctly then this shouldn't be an issue).
  • Keep working on the Materials and Techniques charts as well as the VERY detailed CAD drawings you must create in order to produce for Part C!
  • Have an eye on the M23_ia_dates.pdf  

 

11/4 & 11/7

  • Remember -- Materials are due on Friday 11/11
    • Please conference with me about them so I can double check you aren't spending a fortune / getting the wrong stuff.
  • You need to justify material choices!  That means that you have to be intentional about what you make your prototype out of:
    • Two categories:
      1. Materials -- wood/plastic/metal.  You will select a certain type(s) of these to construct your prototype
        1. ex -- PETG plastic filament 
        2. This is going to be based on your DESIGN SPECIFICATIONS
          1. https://www.simplify3d.com/support/materials-guide/
          2. Codega also has a bunch of books in the classroom that'll be super useful for this part! 
      2. Components -- these are premade things that are part of your design
        1. Suction cups / clips / whatever you can't make.
        2. You need to justify why you picked the ones you picked.  Should still reference the DESIGN SPECS!
  • PROOF OF MATERIALS IS DUE 11/11!!!!!!!!!!!!!!  

 

11/2 & 11/3

 

  • There is NO WAY you get these both done today so keep working on it  

 

10/31 & 11/1

 

10/21 - 10/28

  • Show Codega proof of your client interview 
  • Look at the checklist
  • You should also look at the examples -- part B is a time to:
    • Start investigating form AND function
      • This means taking a critical eye to your mockups and really thinking about what might work and what might not work.  This is an important step towards figuring out what your final design will be!
        • You could annotate pictures of it in actual use (because they are cardboard this might not work perfectly but think about potential issues with your design).
      • Also you can start to mess with materials and components -- maybe evaluate different hook styles or types of cloth or hinges or whatever your  design entails.
      • Again, look at the examples for this -- there are some good ideas there to help you work through the conceptual modeling process... 
  • Continue working on your formal two more formal CADs
    • These should also be annotated -- point out changes and design specifications they meet!
  • Once the CAD is done you need to evaluate them according to the Design Specifications from A
    • Make a table with the specifications and if it met, partially met, or did not meet them
    • Then add a justification / explanation
  • Design Spec Design 1 Design 2  
    1.1 Size is at least 3x4  Met Partially met   
           
    • Met = 2 Partial Met = 1 Not Met = 0 
  • THEN write a paragraph justifying your FINAL choice based on

    • The information from the table

    • Client / user feedback
    • Feasibility
    • Additional research 

PART B IS DUE ON 10/27! 

 

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