Monday, April 11, 2011

SPROCKET - 2D VIEW PARTS


Descripitve Geometry

Manipulating picture planes in order to identify true size, true shape, true length, ture angle, intersection points, and distances
  • True Length Lines
    • if a line is parallel to a fold line in one view, it is true length in the next view
  • Point View
    • find a true length line
    • create a fold line perpendicular to the true length line
    • type "po" for point
    • change "pdmode" to 96
    • change "pdsize" to .1
  • True Size and Shape (TSS) Surface
    • first find true length of one line and point view of that line
    • crate fold line perpendicular to the true length line to get the edge view of the surface
    • crate fold line parallel to edge view
  • Add-A-Line
    • Draw a line parallel to F1 from 1 point to the line you want true length of
    • Project the point where it hits the line you want true length of to the next view onthe same line
    • connect that point to the point you started with which gives you a true length line
    • create fold line perpendicular to true lenth which will give you your edge view including a point
    • create fold line parallel to edge view which will give you your TSS surface