I've lifted my 3D printer into the sky

Today, I'm going to expand my shelf so I can put my 3D printer on it. Keeping the 3D printer on the floor seemed like it might be noisy for the downstairs neighbors, and my back hurt every time I used it. The first picture shows the parts I printed. These are the clamps that will become the legs of the shelf. The second picture shows the printed legs connected. Those visible grooves are the holes where the shelf feet will go. And the background is quite messy because I'm organizing books... lol I should sell them on the app, but it feels like a waste. Selling all these books for about 10,000 won in a bundle... Picture 3 shows the desk I'm using as a shelf, placed on top. The feet fit perfectly with the structure below, so there's no risk of it tipping over...! The pictures after that show the printer placed on top. I was worried if it would hold because the printer body is surprisingly heavy, but it's secured quite firmly. It's printing well too...! With the shelf expansion, I can now place the printer even on top of this narrow bookshelf. 3D printers are so versatile, I love them lol What should I make next?