Talk:CircularKnitic Parametric

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adapting for variable needle size

ride height of needle

CKplate-dimensions.png

  • the geared and non-geared plates sandwhich the butt of the needles to maintain control of the needles height
  • before the needle is sent up it is breifly lowered slightly to pull tension on surrounding fabric.
  • the lowest point of the groove on part CKp3.scad that the butt of the needle rides should be at this lowered position
  • also the the length of the needle below the butt needs to have room to be lowered without hitting the top of the CKp3 base
  • in general:
  • the sandwich needs to be raised higher if the needle is longer below the butt
  • the butt groove needs to be raised as well
    • the design could be changed to put holes in the base of CKp3 and the main table plate to allow the bottom of the needle to move freely downward
    • the butt groove would could start lower
    • could move all of CKp3's mounting screws outside of the circle.
    • use a style of claws similar to the inverse of CKp4 to hold up CKp1 from the base

bent tail

  • some standard needles feature a design where the area section below the butt is bent up to meet the butt.
  • this effectively doubles the "Y" dimension for the "B" dimension

mountain

  • wall of CKp3 might need to be made thicker to counter the torsional forces on the needle butt while passing through the mountain
  • perhaps CKp3 wall thickness = ((H-Y)/2)