Infinity chain 3D print model

A simple gadget in which the chain moves on a guide in the shape of an infinity symbol.Elements printed with PLA filament, 0.4 mm nozzle.INF guide-layer height 0.2mm, number of walls (bottom x wall x top) 3x3x3 infill 20%, raft, tree support.Chain- layer height 0.16mm, number of walls (bottom x wall x top) 3x3x3 infill 20%, raft,support.Chain section includes a connecting element.A video showing how the gadget works on my channelhttps://www.youtube.com/channel/UC82857NfShH6y7w3IASZoaw