Simple and super 3D printing consumable material disk bracket, need to purchase 4 R188 bearings separately

简易超级的3D打印耗材料盘支架，需要单独购买4个R188轴承
 

New version 2.0

新增版本V2.0

1.Increase the size of the tray, support ≤ 70mm.  

2.Increase the hollowed-out design and reduce  the loss of consumables.  

3.Increase edge fillet 

1.增大料盘摆放尺寸，支持料盘厚度≤70mm 

2.增加镂空设计，减少耗材损耗 

3.增加边缘圆角