question

This may not answer exactly what you are asking, but it is related.

UPDATE: @Sam Stubbs does a good job outlining the method below in a post already mentioned by @Jörg Vogel. Original answer continues below.

If there is a 3D shape or other digital asset saved into a FlexSim model, you can save it out again with the following command:

applicationcommand("byteblocktofile",node,"filename");

The node parameter is a reference to a node containing packed media.

The filename parameter is a path and filename designating where in your file system the digital asset should be saved.

For example, the attached FlexSim 2017 model has custom Pallet Jack shape packed in it:

palletjack.fsm

You can see where the binary data is stored within the model file, under the model's packedmedia object data node.

To export this .dae 3D shape out of FlexSim and save it as its own file, try the following in a script window from within the model:

applicationcommand(
	"byteblocktofile",
	node(">packedmedia/1/Pallet Jack.dae", model),
	concat(modeldir(), "PalletJack.dae")
);

This will save a new PalletJack.dae file in the same directory where your model is saved.