I need a 3D .stl file to create a filling tray for cylindrical, flat-bottomed 15g lip balm tubes de s (arranged 6x6 or 7x7 in a 21.5 X 21.5 square). The design should be compatible with a Creality printer. The tray needs a separate 7-10mm retaining wall to be assembled by myself. So the tray will need a recessed ledge to put the retaining wall over for gluing. Requirements: - Accurate dimensions for 15g cylindrical lip balm tubes - Flat-bottom design for stability - Compatible with Creality 3D printers - .stl file format - The tube has a cap stopper. The filling tray must resemble a series of chimneys underneath, the chimneys being designed to go right up to the stopper. The tubes are inserted inside the chimney and stopped by the chimney hitting the cap stopper. - The bottom of the ‘’chimney’’ (where the top, or filling side of the tube comes to rest), must have a gasket style stopper that keeps the lip of the tube a few mm below the surface of the tray, creating a double protection against leaks while filling. Ideal Skills: - Proficiency in 3D modeling software - Experience with .stl file creation - Familiarity with Creality printer specifications