bevel gearbox 3d model

Create a detailed 3D model of a compact counter-rotating bevel gearbox designed as a 3D-printable assembly. The gearbox must contain 4 conical bevel gears total: 1 bottom bevel gear on a vertical input shaft, 2 side bevel gears on opposite horizontal shafts (left and right), and 1 top bevel gear on a vertical output shaft. The arrangement should match a cross-shaped bevel gear layout, with the bottom gear driving the side gears and top gear. Important requirements: - Every component must be a separate individual part, not merged. - All gears must be separate printable objects. - All shafts must be separate printable objects. - The housing must be split into separate parts for printing: top housing half and bottom housing half. - Include separate bearing seats or bearing placeholders for each shaft. - Include simple mounting feet or brackets as separate parts. - Include separate spacers if needed. - Keep all items clean, solid, manifold, and watertight for 3D printing. - Make the model