from front view, create a nurbs cylinder and rescale it to 0.234 (xyz), rotate it to 90° , drag to the center of the objects (pic 19) and translate -z axis to -0.235 (pic 20).
在前視窗中，創建一個圓柱體并將它的尺寸在 xyz 軸縮小到 0.234, 旋轉 90 度 , 并將它移動到物體的中心 (pic 19) ，然后在 -z 軸上移動 -0.235 的距離 (pic 20).

adjust the front cv's until they look like in the following image (pic 21), then select outter isoparm then surfaces > planar to close the cap (pic 22).
調整前面的 cv 點到如 (pic 21) 的效果，調整好后，選擇最外面的 isoparm 線，使用 surfaces>planar 命令閉合這個車輪蓋子 (pic 22).

next, you need to fillet the cap body with a value of 0.030 ( normal fillet direction ) (pic 23).
接下的，你需要 fillet 蓋子， circular fillet 的值為 0.030(pic 23).

ok, now you can hide all helper curves/shapes, select all objects and apply a default phong-e material as soft steel and set the main color to just a little bit brighter than default (i.e. v=0.678) on hsv color sliders :)
ok, 現在你可以將所有的補助線隱藏起來，選擇所有物體，并給它們一個缺省的 phonge 材質，調整 phonge 材質的主顏色 (main color) ( 在 hsv 色板上 v 的取值約為 0.678).

final check before render :
渲染前的檢查 :

select edit > select all by type > nurbs surfaces , go to rendering module, go to render > set nurbs tessellation > option box , set the curvature tolerance to highest value , set the u and v division factor to 5, then hit set and close.

edit > select all by type > nurbs surfaces , 到 rendering module , 再到 render > set nurbs tessellation > option box , 將 curvature tolerance 設為 highest value , 將 u 和 v division facto 設為 5, 然后 set and close .

be sure your render global has been set to production quality (and raytracing if you want). now render it, you should have this lovely nurbs...
確認你在全局渲染的設置里設置為產品質量 ( 還有光線跟蹤 -- 如果你想的話 ), 然后渲染它，你將得到 ....

ooohh mommyyyy....its a brabussss...!!!