step 1
you can start the treading from box modelling or splines. i personally use splines for 90% of my work, but if using splines then you will need to tidy up the model to clean up the geometry.
你可以从box开始创建模型的图形样式。是我个人90%工作量，但是如果用样条线，那么你将需要用这种方式清理整洁的布线
step 2
delete half of the model so we can later mirror it. select the faces and bevel them out enough to get some depth. then select the edges of the model and bridge them to the other sides.
[next]删掉该模型的一半我们可以用做镜像，选择这些面并倒角使其看上去更有深度，然后选择模型的边缘用桥的方式连接到其他对面的边上
step 3
instance a set of 3 in a row to make the top and bottom of the edges match up. this will help with welding the points later on.
实例复制3个首尾相连的模型，然后将这些点焊接起来
step 4
add an edit poly and hit tessellate twice. this will make the edges nice and smooth when we add a mesh smooth.
[next]添加edit poly并点击两次tessellat。这将得到很好的边缘以便于以后顺利添加一个mesh smooth
step 5
add a mesh smooth modifier.
添加一个mesh smooth修改器
step 6
add edit poly and start selecting edge loops that are not needed. then remove them until they are on the edges, to make it smooth. i use ctrl + backspace to make this easier, but save often before doing this.
[next]添加edit poly并开始选择那些不需要的循环边，然后取出他们一直到他们边界，使其光滑，我使用ctrl+backspce快捷键，但要经常保存替代这个。
step 7
copy the model 16 times, or however many times you need to make the treading you want. then weld all the points that connect to turn it from 16 pieces to 1 mesh – all connected.
复制16份这个模型，不过许多时候你需要根据你想要情况而定。然后焊接全部的点就可以把它从16份连接成一个网格物体了。
[next]step 8
mirror the model over, weld the middle points, and then remove the middle edge.
镜像好这些模型，焊接中间点，并取出中间的边缘。
step 9
apply a bend modifier and weld the connecting points.
使用一个bend修改器并焊接点
step 10
pull out the edges so that we can deform them outside later.
向边缘拉出使我们以后可以用来变形
step 11
apply an ffd modifier box, set it to 5x5x5 and scale in the edges.
[next]使用ffd（box）修改器，设置为5x5x5并调整这个边缘
step 12
apply an edit poly and select the edges on both sides
使用edit poly并选择编辑两侧的边界
step 13
extrude the edges in and chamfer the edges by 3 to get a smooth transition
再挤出这些边界并作出3个边的倒角使其得到平滑的过度效果
step 14
just place the rim – and there you go!
只要将钢圈放进去就好了
step 15
hopefully this little tutorial will help you to model tyre tread for your own projects. this is just one of many ways to model a tyre, but i use this method the most
[next]希望这个教程能够帮助你能完成你的轮胎项目，在许多做轮胎的方法中这只是其中之一，但是我用这个方法最多。
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