Building Lego engines can be an exciting and rewarding experience, but sometimes things don’t go as planned. From personal experience, when a Lego engine 'blows up,' it usually means that some parts malfunctioned under stress or were not assembled correctly. The phrase 'It just kept getting worse' really resonates because once a single component fails, it can trigger a chain reaction causing the entire engine to break down. One common issue is overloading the engine with too many pieces or using motors beyond their capacity, which leads to overheating or mechanical failure. Sometimes the problem stems from inaccurate gear alignment or loose connections, which can cause friction and eventual breakdown. During my builds, I learned that regularly testing each stage of the engine as I assemble it can catch weaknesses early and prevent such failures. Moreover, using high-quality Lego Technic pieces designed for mechanical builds reduces the risk of parts breaking under strain. It’s also helpful to consult building guides or watch tutorial videos to understand correct assembly techniques and avoid common pitfalls. If your Lego engine 'blows up,' don’t be discouraged. Troubleshooting is part of the process, and adjusting your design or parts can lead to a more reliable and efficient engine. Sharing experiences with fellow Lego enthusiasts online can provide valuable insights and solutions to common problems. Remember, patience and attention to detail are key to successful Lego engineering projects.