An architect told me once, “If you don’t add expansion joints into your designs, Mother Nature will put one in for you, it’s called a crack.” Let’s face it, when we design, we copy a design, resize it, and make it our own. In doing so, how would we know if we’re copying its design mistakes or not? Is there a filter we can use? That filter is called "Gruebler's Count 3D.” This formula, developed in 1883, was used to determine if a mechanism is fully, partially, or over-constrained. It helps us adhere to the "Laws of Physics" (rem. Mother Nature always wins), making machines last a lifetime. You can create "Smart Mechanisms," where moving parts automatically align themselves to changes in force and temperature, making them last a "Lifetime." These short videos are supplements to my book on Amazon, “How to Design Mechanisms that Last a Lifetime." It's not uncommon for my "3D Gruebler-ized" designs in the theme park & packaging industries to CYCLE OVER 24 MILLION TIMES without any issues!