In Minecraft, you can refer to the following for how to make an automatic tree felling machine in Minecraft:
In the mobile version of Minecraft, survival requires a lot of wood, and wood needs to be cut down to obtain. Cutting down trees requires constant search. The semi-automatic wood farm can solve this problem. You only need to plant saplings to continuously generate wood. It saves a lot of time and the materials are very simple.
A semi-automatic woodyard requires saplings, detectors, levers, redstone, redstone comparators, launchers, pistons, glass, boxes, and hoppers.
The first step is to find an open area and place a transmitter.
In the second step, place four pistons on the left or right side of the space in front of the launcher to form four high piston walls.
The third step is to place a detector above the piston so that the detector can detect the direction in which the piston is pushed out.
The fourth step is to place a block two blocks above the detector and one block forward to limit the growth height of the saplings and prevent them from being too tall.
The fifth step is to connect the four pistons to the detector so that the detector can activate the pistons so that all four pistons can push out.
The sixth step is to set a high-frequency signal behind the transmitter, and then place a lever behind it to control the switch of the transmitter to avoid wasting bone meal.
Step 7: Place a funnel on top of the launcher that outputs to the launcher. Place a box on top of the funnel to store bone meal.
Explanation of the principle of semi-automatic woodyard: plant saplings, the saplings are matured and grown by high-frequency transmitters, and the saplings grow and are detected by the detector. The piston is activated, and the piston pushes the tree out. Because of the height limit, the saplings will only generate specific height, the trees are pushed out and the leaves fall off automatically.