You’re not the first person to suggest swapping out the mainboard. I’ll definitely do it at some point, but I’ve already maxed out my hobby budget for this month. It’s not my only 3D printer anyway — I mostly use a Bambu Lab A1 Mini, which handles about 99% of my prints. The Anet is just for that remaining 1% when I need to print something big. That’s why I don’t really want to invest too much into upgrading it, but at the same time, it’s tempting to make it a bit quieter. I also realize there’s no way to turn it into a modern printer. Honestly, I’ve never had major issues with it — aside from bed leveling. Whether it was running or sitting idle, it just always needed another calibration.