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From front view, create this profile curve (Fig 1), and move it to -0.95 of Z axis. In this case, I use a measurement of around 5.7 cm (fig 2). Use the create > measure tools > distance tool to check the distance.
在前视窗里创建轮廓曲线 (fig 1), 并在 z 轴方向上移动约 -0.95. 在这个教程里,我的尺寸约为 5.7 cm(fig 2). 你可以使用 create > measure tools > distance tool 来检查你的尺寸 .
fig 1
fig 2
From side view, duplicate this curve and move the new curve to 0.951 of Z axis (fig 3), then tweak this new curve's CVs into this shape (fig 4), so it looks smaller than the original.
在侧视图复制曲线,并在 z 轴方向上移动约为 0.951(fig 3), 然后将新复制的曲线移动各 CV 点使其形状像 (fig 4) 所示,可以看出它比原来的曲线轮廓要小。
fig 3
fig 4
Next, select the 2 curves and go to surface > loft (fig 5). OK. Next create a NURBS cylinder with radius 2, height ratio 3, sections 20, spans 12 (fig 6).
接下来,选择这两条曲线并 surface > loft (fig 5). Ok. 创建一个 Nurbs 圆柱体,半径为 2 ,高为 3 , sections 为 20,span 为 12(fig 6).
fig 5
fig 6
Now from side view, rescale the Z value to 0.216 (fig7). Next...click the select by component type button
, go to front view and select these center CVs (see fig 8).
回到侧视窗,将圆柱体的 z 轴方向缩小到 0.216(fig 7). 接下来选择中间的一些 CV 点 (fig 8).
fig 7
fig 8 
Now move the selected CVs to 1.433 of Z axis (fig 9), you can see the CVs' axis value in the CVs panel (right side).
将它们在 z 轴方向上移动约 1.433 的距离,你可以在右边通道栏里看到数值 .
fig 9
Next, select your lofted object, Shift-Select the cylinder, go to edit nurbs > surface fillet > circular fillet > option box and apply these settings (fig 10). Note : Use 0.0010 for Positional Tolerance for better fillet tolerance, hit fillet, then you'll have this figure (fig 11).
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
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