接下来,选择你 Loft 成的曲面,按 shift 键选择圆柱体,到 edit nurbs > surface fillet > circular fillet > option box 选项框里运用这个设置 (fig 10).
记住 : 使用 0.0010 的数值给 Positional Tolerance ,这样你就可以得到 (fig 11).
fig 10

fig 11

Next, select the cylinder, go to edit nurbs > trim tools , select one of the white trim areas (fig 12), rotate your camera view to back side, and select back center area (fig 13) then hit Enter.
接下来,选择圆柱体,到 edit nurbs > trim tools, 选择要保留的曲面区域,如 (fig 12)(fig 13) 所示,然后 Trim 它。
fig 12

fig 13

Next, select the lofted object, go to edit nurbs > trim tools , select one of center top areas (fig 14) then hit Enter (fig 15).
选择 Loft 出来的曲面,到 edit nurbs > trim tools, 选择要保留的曲面区域,如 (fig 14)(fig 15) 所示,然后 Trim 它。
fig 14
fig 15

Next from front view, create a NURBS torus with radius 3.8, sections 22, height ratio 0.08, rotate it to 90° of X axis (fig 16), then select these 4 CVs and rescale them a little bit towards the center (use left manipulator to rescale them) (fig 17).
回到前视窗,创建一个 Nurbs 圆环,半径为 3.8,section 为 22 , hight ratio 为 0.08, 并在 x 轴方向上旋转 90 度 (fig 16), 选择这 4 个 CV 点并将它们向中心方向拉伸一点 .(fig 17)
fig 16

fig 17

Next, create a NURBS circle with 18 spans, rotate it to around -41.676° of Z axis and rescale to 0.238 of Z scale, translate it to -2.484 of X axis and -2.736 of Y axis (fig 18). Next, you need to duplicate and rotate this curve several times towards the top left side and tweak some CVs (see fig 19).
接下平,创建一个 Nurbs 圆曲线, span 为 18, 并在 z 轴方向上旋转 -41.676 度,并将 z 轴方向缩小到 0.238, 在 x 轴方向上移动到 -2.484 , y 轴移动到 -2.736(fig 18). 接下来你需要复制一些曲线并旋转移动到 (fig 19) ,适当移动它们的一些 CV 点。
fig 18

fig 19

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