krystal | krystal boyd gifs | AnimatedPornGifs
hyrodium:  The reason why Involute gears turn smoothly.  Fig 1) How to draw involute of circle.Fig 2&3) Move and rotate     the     observing point.Fig 4&5) The curves are tangent.Fig 6)   Involute gears turn smoothly.
hyrodium:  The reason why Involute gears turn smoothly.  Fig 1) How to draw involute of circle.Fig 2&3) Move and rotate     the     observing point.Fig 4&5) The curves are tangent.Fig 6)   Involute gears turn smoothly.
hyrodium:  The reason why Involute gears turn smoothly.  Fig 1) How to draw involute of circle.Fig 2&3) Move and rotate     the     observing point.Fig 4&5) The curves are tangent.Fig 6)   Involute gears turn smoothly.
hyrodium:  The reason why Involute gears turn smoothly.  Fig 1) How to draw involute of circle.Fig 2&3) Move and rotate     the     observing point.Fig 4&5) The curves are tangent.Fig 6)   Involute gears turn smoothly.
hyrodium:  The reason why Involute gears turn smoothly.  Fig 1) How to draw involute of circle.Fig 2&3) Move and rotate     the     observing point.Fig 4&5) The curves are tangent.Fig 6)   Involute gears turn smoothly.
hyrodium:  The reason why Involute gears turn smoothly.  Fig 1) How to draw involute of circle.Fig 2&3) Move and rotate     the     observing point.Fig 4&5) The curves are tangent.Fig 6)   Involute gears turn smoothly.