Open-Source Extruded Profile systems are a mature breed these days. With Openbuilds, Makerslide, and Openbeam, we’ve got plenty of systems to choose from; and Amazon and Alibaba are coming in strong with lots of generic interchangeable parts. These open-source framing systems have borrowed tricks from some decades-old industry players like Rexroth and 80/20. But from all they’ve gleaned, there’s still one trick they haven’t snagged yet: affordable springloaded T-nuts. I’ve discussed a few tricks when working with these systems before, and Roger Cheng came up with a 3D printed technique for working with T-nuts. But today I’ll take another step and show you how to make our own springs for VSlot rail nuts. For anyone playing extrusion hot-potato in a multi-person build a-la Lasersaur, springloaded T-Nuts are a wonderful convenience. When springloaded, these otherwise normal T-nuts stick in place rather than slide down the slot, making the building process more manageable with less parts to track simultaneously. We just set and forget! Don’t get me wrong. Springloaded T-nuts already exist for us hobbyists using maker-style extrusions. But they’re pricey, as in more-than-a-dollar-a-p...