Translations:Thread for Screw Tutorial/33/en

From FreeCAD Documentation
  1. Make a vertical cut profile. Make sure that the height of the sketch matches the pitch of the thread you need.
  2. Make a helix1 with height identical to the pitch and the pitch identical to the thread pitch, and a helix radius of 0.42*nominal diameter of the thread.
  3. Sweep the cut profile along the helix1. Set Create solid and Frenet.
  4. Make a circle with nominal radius of the thread in the XY plane.
  5. Make a face from the circle. This can be done with Part Builder or Draft Upgrade, then set DataMakeFace to true.
  6. Cut the face with the sweep profile.
  7. Make a Draft Clone from the cut.
  8. Use Draft Downgrade on the clone in order to get a wire. This wire is the horizontal profile needed for this method.
  9. Make a helix with radius of nominal radius of the thread and a pitch of the thread and the height of the needed thread.
  10. Sweep the wire along the helix. Set Create solid and Frenet.
  11. You are done.