In this investigation, you can build compound arms having multiple joints of two types: one that rotates and is typical of rotating motors, and one that slides and
is typical of hydraulic lifts. A circle will be used to represent a
rotating joint, and a rectangle will be used to represent a sliding
To simplify the problem, the device ignores any thickness of the joint and assumes that the joints can overlap with one another.
Press the Add Sliding button to add a sliding arm or the Add Rotating button to add a rotating arm. When an arm is added, the Joint Control Window will open and allow for adjustments of the length, speed, and orientation.
Using just these two kinds of joints, a diverse set of regions of reachable points are possible.
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