{"id":317,"date":"2021-08-13T13:22:35","date_gmt":"2021-08-13T17:22:35","guid":{"rendered":"https:\/\/opentextbc.ca\/patterndevelopment\/chapter\/frustum-of-a-cone\/"},"modified":"2023-01-24T13:17:59","modified_gmt":"2023-01-24T18:17:59","slug":"frustum-of-a-cone","status":"web-only","type":"chapter","link":"https:\/\/opentextbc.ca\/patterndevelopment\/chapter\/frustum-of-a-cone\/","title":{"raw":"Frustum of a Cone","rendered":"Frustum of a Cone"},"content":{"raw":"
    \r\n \t
  1. Draw an [pb_glossary id=\"499\"]elevation view[\/pb_glossary]<\/strong>, including the [pb_glossary id=\"480\"]apex[\/pb_glossary] point<\/strong>.\"\"<\/strong><\/li>\r\n \t
  2. [pb_glossary id=\"478\"]Profile[\/pb_glossary]<\/strong> the base of the elevation view and divide it into 6 equal parts.\"\"<\/li>\r\n \t
  3. Label the profile from 1 to 7 and project the divisions vertically into the base of the cone.\"\"<\/li>\r\n \t
  4. Project the [pb_glossary id=\"507\"]element lines[\/pb_glossary]<\/strong> from the base to the apex of the cone.\r\n\"\"<\/li>\r\n \t
  5. Locate a radius point where you want to develop the pattern.\"\"<\/li>\r\n \t
  6. With your compass, take the large\u00a0[pb_glossary id=\"481\"]slant height[\/pb_glossary]<\/strong>\u00a0from the elevation view and swing an arc from the radius point.\"\"<\/strong><\/li>\r\n \t
  7. Set your compass to the small\u00a0slant height and swing it from the same radius point.\"\"<\/strong><\/li>\r\n \t
  8. Along the [pb_glossary id=\"482\"]stretch-out[\/pb_glossary]<\/strong> (large) arc, establish a starting point for the pattern and draw a line back to the radius point.\"\"<\/strong><\/li>\r\n \t
  9. Set your compass to a step-off. From your starting point, swing it 12 times along the stretch-out arc. In this case, this must be done on the large or stretch-out arc because that is where the step-off is taken from.\"\"<\/strong><\/li>\r\n \t
  10. Connect the last point back to the radius point to complete the pattern.\"\"<\/li>\r\n<\/ol>\r\nhttps:\/\/media.bccampus.ca\/id\/0_59h7c0p4?width=608&height=402&playerId=23449753\r\n\r\n ","rendered":"
      \n
    1. Draw an elevation view<\/a><\/strong>, including the apex<\/a> point<\/strong>.\"\"<\/strong><\/li>\n
    2. Profile<\/a><\/strong> the base of the elevation view and divide it into 6 equal parts.\"\"<\/li>\n
    3. Label the profile from 1 to 7 and project the divisions vertically into the base of the cone.\"\"<\/li>\n
    4. Project the element lines<\/a><\/strong> from the base to the apex of the cone.
      \n\"\"<\/li>\n
    5. Locate a radius point where you want to develop the pattern.\"\"<\/li>\n
    6. With your compass, take the large\u00a0slant height<\/a><\/strong>\u00a0from the elevation view and swing an arc from the radius point.\"\"<\/strong><\/li>\n
    7. Set your compass to the small\u00a0slant height and swing it from the same radius point.\"\"<\/strong><\/li>\n
    8. Along the stretch-out<\/a><\/strong> (large) arc, establish a starting point for the pattern and draw a line back to the radius point.\"\"<\/strong><\/li>\n
    9. Set your compass to a step-off. From your starting point, swing it 12 times along the stretch-out arc. In this case, this must be done on the large or stretch-out arc because that is where the step-off is taken from.\"\"<\/strong><\/li>\n
    10. Connect the last point back to the radius point to complete the pattern.\"\"<\/li>\n<\/ol>\n