About this 3D model

The z-axis of the universal version i3 structure has been changed from pom wheels to linear slider . low cost Abandoned all metal parts. Add clearance nuts. After the modification, the overall x-axis can be reduced by about 100g. Support 12h linear slider Supporting 9-h linear slider installation video 1,https://www.bilibili.com/video/BV12J4m1Y7yy/?spm_id_from=333.999.0.0&vd_source=2419c7775079aa709158dc96cf8d443a 2. It will be updated 3. It will be updated 支持几乎全部i3结构打印机，而且无论尺寸。