question

You inserts a traveltoloc task, where the hook should travel before the unload task is executed. The coordinates depend on the stacking algorithm of the pallet. The nodefunction is called "palletentry" and you find it in the main tree > exec > globals > nodefunctions. By evaluating this function you know the next place where the item goes. Then you project these coordinates to the origin of the model to let the hook travel to this location. You need to calculate the coordiantes for each box that you put onto the pallet. Please try it on your own to find the coordinates for the travel to loc tasktype. Sometimes the coordinates origin are at the top left corner of the bottom surface or the origin is in the center of the bottom surface or the origin is in center of the solid object.

You can insert the task, when the tasksequence is created by you from tasksequence example 1, where you choose to use the transport. You can insert the task, when the transport task is received by a dispatcher or the crane. The task is then the last task in the sequence, then you must rerank this task in the right order. The last chance you can insert this task is, right before the unload gets tobe executed.

You will see that is possible to achieve your request, but it takes some time. Are absolutely sure that it is necessary to compensate the small error in the simulation to get the desired statistical results?

That the FlexSim engine doesn't do this for you is caused by the fact that it is really difficult to predict the coordinates the hook must travel to. The engine knows the coordinates of the combiner and the pallet, but it hasn't any knowledge of the structure of the already stored items on the pallet and the location of the next location.