a mount for bolt hobbing which made with 6mm acrylic ，totally 5 layers. ,just like this one http://www.thingiverse.com/thing:10360a mount for bolt hobbing which made with 6mm acrylic ，totally 5 layers. And 3 bolt（M3 *45） ， 3 nuts （M3）will be needed to make all acrylics together. It is very simple , two 608 bearings also will be needed . cost: acrylic 3 sets cost me 28RMB(4.8USD) two 608 bearings cost me 7RMB(1.2USD) total per full set around 2USD这是一个用6mm亚力克板做的搅丝轴加工时的固定座。轴用608轴承2个来固定，座用M3 *45 的螺丝组装的。整套下来大概12块一个。对于没有3D打印机的朋友来说这个可以用来做关键部件啦。