In our first attempt, we set the x-axis of the robot align with the linear track axis. The Y-axis points to the part, a boat hull. In this case, the first joint works in the range of 0~180 degrees. One disadvantage here is that, we could move the first joint angle from 179 to -179 degrees in a shorter way. In case anything unexpected happened, we are not easy to move the robot back from the boat to a safe area.
We want to rotate the robot 90 degrees, so that the negative Y axis aligns with the positive track axis. Then the first joint works in the range of -90~90 degrees. It is easy to change the first joint from 90 to more than that, e.g. 120 degrees.
We try to create a station with the robot’s Y-axis aligns with the linear track, but got errors. Please help us fix it.