applications and implications

• Assignment
  plan and document a final project that integrates the range of units covered:
  what will it do?
  who's done what beforehand?
  what materials and components will be required?
  where will they come from?
  how much will it cost?
  what parts and systems will be made?
  what processes will be used?
  what tasks need to be completed?
  what questions need to be answered?
  what is the schedule?
  how will it be evaluated?
  projects can be separate or joint, but need to show individual mastery of all of the skills
  where possible, you should make rather than buy the parts of your project

• Progress

• What I want to do is to automate 3D stockinette stitch.
  3D stockinette stitch is a stitch I invented.
• 
  back side of usual stockinette stitch
• 
  Here is the image of the back side of usual stockinette stitch. When you knit another part of the thread through the red parts, it will be 3D stokinette stitch.
• 
  Knitted another part of the thread (Using another thread just for explanation)
• 
  3D stockinette stitch sample
• Here is the image for the final machine. (I pasted this image on computer-aided design week also.)
  
  A horizontal needle gives a stitch to a vertical needle.

• 
  I bought an old knitting machine for 1 yen (==1 cent) on Yahoo! auction. The reason I bought it is to get latch needles. (Usually, 10 latch needles cost about 600yen. The knitting machine has 200 latch needles!)
• 
  ▲ latch needles

• Here is how I took latch needles from the knitting machine.
  

• The Assignment

• what will it do?
  it knits three dimensionally.
  
  who's done what beforehand?
  no one.
  2D automated knitting machine: http://www.youtube.com/watch?v=1T9dwy5jTFA&list=PL7lhlSfyozc9QapHYqtuuCVmg4B8hCMwj&index=19
  
  what materials and components will be required?
  latch needles
  acrylic
  lead screws
  round bars (stainless steel or steel)
  couplings
  nuts
  MDF
  
  stepper motors
  servo motors
  electronic parts
  
  where will they come from?
  latch needles: internet
  acrylic: DIY center
  lead screws: DIY center, its edge will be lathed at FabLab for connecting with a stepper
  round bars (stainless steel or steel): DIY center
  couplings: DIY center
  nuts: DIY center
  MDF: DIY center
  
  stepper motors: Akizuki Denshi
  servo motors: Sengoku Densho
  electronic parts: FabLab
  
  how much will it cost?
  latch needles: 2000 JPY approx. (a used knitting machine + postage)
  acrylic: 500 JPY approx.
  lead screws: 500 JPY approx.
  round bars (stainless steel or steel): 500 JPY approx.
  nuts: 500 JPY approx.
  MDF: 500 JPY approx.
  
  stepper motors: 2000 JPY
  servo mortors: 1600 JPY
  electronic parts: 2000 JPY approx.
  
  what parts and systems will be made?
  lead screw with latched edge to be connected with steppers
  mechanics that servo motors push and pull latch needles
  
  what processes will be used?
  lasercutting
  PCB milling
  assembling
  
  what tasks need to be completed?
  mechanical design
  PCB design
  lathe lead screws
  assembling
  coding
  
  what questions need to be answered?
  clock frequency to make steppers and servos work
  (hello.servo board runs at 20MHz, hello.stepper board runs at 8Mhz)
  
  what is the schedule?
  -May 15 get latch needles, mechanical design, PCB design
  -May 22 fabrication
  -May 29 debugging
  
  how will it be evaluated?
  1. The machine works.
  2. The machine knits.