The storage tank is used to store powder, transparent and convenient for observing the powder condition.
There is a rotating nut at the powder feeding port, which can be manually tightened to remove the nut and add powder from here.
Install a stepper motor at the powder unloading point to control the precise powder feeding during the working process. There is an on/off valve at the powder unloading port, which can be used to pour the remaining powder and reuse it.
The observation window is set to be transparent, which can observe the direction of motor rotation and the remaining amount of powder. It can also be used to check whether the powder feeding device is normal.