Abstract: A method of manufacturing a motion simulator having a deck and a number of deck-supporting legs (2) that are pivotally connected with the deck in first pivot points (4). The legs are actively and continuously length-adjustable, such that the deck is capable of describing a motion envelope comprising all desired deck positions, wherein a leg envelope is determined for each leg within which the possible positions of the relevant leg are located, whereafter the common surrounding space of the legs, and in particular the interspace included between the leg envelopes is determined. A shell is then designed that at least carries the deck, which shell defines an inner space extending at least partly within the interspace between the legs (2) defined by the leg envelopes, in such a manner that in each position of the simulator, the legs are clear of the shell (1).