Material tray, visual scale and fixed wire clip

A very useful material tray that I personally modified.1. Added scales, ranging from 200g to 800g.2. Slots are provided to facilitate observation of the usage of consumables.3. A fixed cord clip is added, which is very convenient for storage after removal and prevents consumables from being messed up. 个人修改的非常好用的料盘。1.增加了刻度，分别为200g-800g。2.开了槽便于观察耗材使用情况。3.增加了固定式的线夹，非常方便取下来后的存储，避免耗材乱掉