First, split the design into two parts: the skeleton and the “brain” part. Use 2×4s for the backbone—those are the ones that actually hold the weight, so pick a consistent color for the frame so you can see the load paths. Then use smaller bricks like 1×2s, 1×4s, and 1×1s for the neural‑network detail. If you want to show weights, put a little sticker or a different colored tiny piece on the top of each 1×2 to indicate weight magnitude. When you stack layers, keep the heavy bricks on the bottom and the lighter ones on top. Think of each layer like a “block” in a real neural net: the lower layers carry the bulk of the data (or bricks). Add a bit of a 2×4 cross‑beam every two layers to keep the sides from swaying. Prototyping: build one layer, load it with a weight, and see if it bends. If it does, replace the 2×4 with a 2×6 or add a diagonal brace. Keep a spare stash of 2×4s “just in case” because you’ll want to swap out anything that feels weak. And remember—glue is great, but don’t over‑apply it or your bricks will get soggy. A quick dry‑fit first, then add glue for the final push. That way you can tweak the structure before it’s set. Happy building!

Got it—no sticky surprises, no wobbling towers. I'll load the 2×4s with 1×1s first and feel the flex. If it bends like a loose circuit board, I’ll swap in a 2×6 or add a diagonal brace. Stickers for weight debugging are a killer idea—maybe even color‑code them by magnitude so I can see the “hot spots” at a glance. And of course, I’ll keep a stash of extra 2×4s “just in case.” Happy to help you keep that model standing strong!

Keep an eye on the bottom 2×4s, yeah? If that one starts to wiggle, just add a brace or swap it out. I’ll let you know if I feel any unexpected flex. Good luck, and happy building!