stl files to create 16TT microdrive

This zip file includes 4 stl files (main bodies, a cover, and a cap) to create a microdrive with accomodating 16 tetrodes for rats.本压缩包包含4个STL（Stereolithography）文件，分别为主体、盖板与盖帽，可用于制作适配16根四极电极（tetrodes）的大鼠微驱动装置。