In fact, the act of passing the shuttle from the left hand to the right hand, and from the right hand to the left hand, can be simulated by a machine.
The shuttle has a hole on the left side and a hole on the right side.
A crossbar simulates the left hand, with a thinner upward cylindrical rod at the end.
The cylinder can be inserted into the hole on the left side of the shuttle.
This crossbar only needs to perform four actions.
Move to the right, slide down, move to the left, slide up.
All its movements are thus completed.
Another crossbar simulates the right hand, also with a thinner upward cylindrical rod at the end.
It also only needs to learn these four actions: move to the right, slide down, move to the left, slide up.
Then these two crossbars can pass the shuttle back and forth between each other.
Thus, the shuttle is woven back and forth, completing the task of weaving the horizontal threads.
Horizontal movement is easy to achieve.
