They were very well designed. The oil presses were three meters high, with a drum container at the top where you would feed in the oil fruits, a disc in the middle with long poles sticking out that could be pulled by spirit beasts, and a pipe at the bottom which would be the outlet for the oil.
It all looked simple, but with a machine that had the size of twenty square meters overall, it wasn't exactly small. Good thing it could be dismantled into several parts, otherwise they wouldn't have been able to fit inside the carriages.
Zhao saw how high the feed container was off the ground. If you wanted to feed it with oil fruits, there were only two ways. The first way was to form boards into a slope shape to give the feed container a better opening to catch whatever you put in. The other way was to use a conveyor belt.
The conveyor belt method was the easier way. You just load the belt with oil fruits and they would automatically go through the opening of the container. The oil press didn't have a conveyor belt design, so Zhao feared that there was no such thing on the Continent.
The board method was what was widely used on the Continent. People would just dig a pit in the ground and then they would put the oil press in that pit, so then the feed container would be closer to the ground. Any oil that was extracted would be brought up in barrels. Zhao didn't want to use this method because it wasn't an easy task to dig around here. The ground in the castle was all made up of stone.
Zhao still wanted to use the conveyor belt method because it wouldn't be difficult to do. It just needed some renovations. Fortunately, the whole press was made of metal, so to change it they just needed some metal parts.
But the next question was where would Zhao get a blacksmith? If he really wanted a conveyor belt, he would need a blacksmith to do the job, and his skills couldn’t be too weak.
Zhao wanted to ask Green if he knew. In the Continent, there were a lot of machines built by blacksmiths, and some of them were powered by magic crystals. But since the oil press was just a simple machine that squeezed out fruit oil, it wasn't worthy of using magic crystals as a power source because it wasn't worth the money. So simple machines like the oil press were generally designed to be powered by water, wind, or animals.
Since there was no way to build the conveyor belt, they could only use the board method. They didn't lack any boards, but Green still needed to go buy some barrels.
Green was aware of their situation, so he immediately set off to Casa city, while Zhao got some boards from the castle. They were also getting ready to wash the oil fruits. Fortunately, water was conveniently nearby, just outside the castle. Zhao told Ann to build a stone basin where water would keep flowing in, allowing them to wash the little hairs off the oil fruits. These little hairs, which could also become food for the fish, would flow out into the moat.