Command: Cylin

Function: The length of the cylinder block is not distorted,
     Length adjustment with the length of the trip, for the parametric approach,
     Use Insert Block mode is not real rendering

Location: 1 POP YMold -> Other -> Cylinder
          2 Toolbar Y_Mold2 -> Cylinder

Factor:  Sun, Parker, chan Tai, Jun Fan


T-type -- push the head for the T-type, default, push the head for the thread

Stroke -- It is not necessary to enter the itinerary and front view
      Front view, side view need to enter the trip
