That’s a fantastic build journey — from first inspiration at RepRap festivals to being nearly SMRRF 2026 ready. The PA6-CF parts look clean, and using a hardened steel nozzle on the K2 Plus was definitely the right call for strength and durability. It’s also great to see how much the community resources helped, especially Printables and the DeathRacers Builders Group — that support makes a huge difference on projects like this. With the hardest work done, it’s all about tuning and testing now. On a side note, I’ve been playing with interactive 3D models and small simulations lately, which pairs nicely with hands-on maker builds. Best of luck at SMRRF — hope it rips down the track!