Patent-family-89428855

A modular toy construction system (1) comprising modular toy construction elements (10, 20, 50, 105, 201, 202, 203,204, 205), the constructions elements (10, 20, 50, 105, 201, 202, 203,204, 205) having either first connectors (101) or second connectors (102), connectable to the first connectors (101), or both, wherein the first connectors (101) are arranged in a regular two-dimensional pattern, of equidistantly spaced first connectors (101), by a fixed modular distance (M), wherein the constructions elements (10, 20, 50, 105, 201, 202, 203,204, 205) of the modular construction system (1) comprises a worm drive element (20) and a guide element (50), wherein the worm drive element (20) comprises - an elongate body (30) having a longitudinal axis (A1) and a length (L1) of a discrete multiple of the fixed modular distance (M); and - a helical track (40) formed along the longitudinal direction of the elongate body (30), wherein the guide element (50) comprises - a body (60) having a length (L2) and a width (W1), and a longitudinal direction; - a worm bearing (90) formed in the body (60) of the guide element (50); and - a track guide member (80) formed in a concave surface of the worm bearing (90), which track guide member (80) is configured for cooperating with the helical track (40) of the worm drive element (20), wherein the helical track (40) has a pitch of one turn for each four fixed modular distance (M) of the length (L1) of the worm drive element (20).