{
  "task": "Model a spur pinion gear shaft with square drive end and detail it on an A3 drawing",
  "domain": "CAD",
  "application": "PTC Creo",
  "description": "Create a solid part model and an associated A3 detail drawing of a spur pinion gear shaft with a square drive end and a center hole. Work in millimetres. Name the part file creo-ex-13.prt and the drawing creo-ex-13.drw.\n\nThe shaft is a single turned part, 92 long overall, built on one axis. From the left end:\n- Journal: Ø15, 13 long.\n- Hub: Ø23, 14 long.\n- Spur gear: 40 outside diameter, 31 root diameter, 15 face width. C1 chamfers on the tooth edges.\n- Second hub: Ø23. The span from the start of the first hub to the end of this hub is 47.\n- Right shaft: Ø15 to the right end. C1.5 chamfer at the end face.\n\nAdd an R3 fillet where each hub meets the gear root. Cut a square drive on the last 16 of the right end, 12 across the flats, with a 2 dimension at the start of the flats. Add a 60° center hole to KS B 0410, type A, size 2, in the right end face.\n\nModel the gear teeth evenly spaced around the shaft axis on a Ø36 pitch circle. Size the tooth form with these values:\n- A tooth tip width of 1.2.\n- R10 flank arcs.\n- A separate dimension of 4 at the tooth.\n\nProduce a drawing of the part on an A3 sheet with these views:\n- A front view with the axial dimensions 13, 14, 15, 47, 16 and 92, the diameters 15, 23, 40, 23 and 15, and the 2 dimension at the square drive.\n- A full longitudinal section view, hatched, showing the 31 root diameter, R3 and C1.5.\n- An end view showing the tooth form (R10, 4 and 1.2) and the 12 square across flats.\n- An isometric shaded view.\n\nAnnotate C1 on the gear and add the center hole note \"KS B 0410 60° A 2,\".",
  "input_files": [
    "task_files/diagrams/diagram_01.pdf",
    "task_files/diagrams/diagram_01.png",
    "task_files/diagrams/diagram_01_detail01.png"
  ],
  "deliverables": [
    {
      "path": "output_files/project_files/creo-ex-13.drw.1",
      "type": "native_project_or_dependency",
      "format": ".drw",
      "description": "The native deliverable is a Creo part file (creo-ex-13.prt) of the spur pinion gear shaft and a Creo drawing file (creo-ex-13.drw) holding the dimensioned A3 sheet with front, section, end and isometric views."
    },
    {
      "path": "output_files/project_files/creo-ex-13.prt.1",
      "type": "native_project_or_dependency",
      "format": ".prt",
      "description": "The native deliverable is a Creo part file (creo-ex-13.prt) of the spur pinion gear shaft and a Creo drawing file (creo-ex-13.drw) holding the dimensioned A3 sheet with front, section, end and isometric views."
    }
  ]
}