Building A Full-Scale GT3 RS Gearbox Didn't Go To Plan

The original plan for this build was straightforward: keep expanding the full-scale GT3 RS gearbox and finally start bringing some of the major assemblies together. Unfortunately, the build had other plans. What should have been a productive gearbox session quickly turned into a day of chasing problems. Parts that looked ready weren't quite ready, new components had to be printed before progress could continue, and several sections of the build stalled while waiting for replacement parts. Then the printers started causing problems as well. A number of print failures meant critical components weren't available when needed, leaving sections of the gearbox incomplete and forcing us to stop before reaching the finish line. At that point we had two options. Wait until everything was reprinted, rebuilt, tested, and completed, which would have delayed the video by weeks. Or show the project exactly as it happened. Operation Overbuilt has always been about documenting the reality of building a full-scale Porsche GT3 RS using oversized Technic-style geometry. Not just the successful assemblies, but the setbacks, delays, failed prints, and unexpected problems that come with trying to scale something like this into the real world. Some days everything works. Some days nothing seems to. This was one of those days (Weeks). The gearbox isn't finished yet, and several printed components still need to be remade before the build can move forward properly. Rather than rushing solutions or hiding the problems, we're calling it here and picking up where we left off in the next part. The missing parts are already being worked on. The printer issues will be addressed. And hopefully the next build session finally gets this gearbox over the line. Although if Operation Overbuilt has taught us anything so far, it's that there's usually another problem waiting around the corner. A Few Important Caveats This project is currently in Stage 1. Stage 1 is about proving physical feasibility, not performance. The vehicle is not complete. The vehicle is not road legal. The vehicle is not intended for normal road use at this stage. Failures, redesign-free problem solving, and iteration are a fundamental part of the process. Where adjustments are required, they are made within the established project constraints. The objective remains simple: Build the vehicle using oversized Technic-style geometry. Keep the geometry faithful to the original design. Prove the platform can physically exist at full scale. Everything else comes later. Project Stats 🔧 Porsche GT3 RS (42056-inspired) 🖨️ Approximately 450–650 kg of filament ⏱️ Currently Estimated 6,000–7,000 print hours - Who knows where it will go 📏 Roughly 8× scale 🏗️ Built using oversized Technic-style geometry 🚧 Stage 1: Physical feasibility If you've ever had a print fail halfway through a job, you'll probably relate to this build. What has been your most frustrating 3D printing failure so far? Subscribe to follow the project as we continue building a full-scale 3D printed GT3 RS and find out whether this gearbox finally comes together in the next part. LEGO® is a trademark of the LEGO Group. This project is independent, is not affiliated with, authorised by, sponsored by, or endorsed by the LEGO Group. Operation Overbuilt uses LEGO Technic-inspired design principles as the basis for this engineering project. ----------------------------------------- Visit Shopify for Merch at: https://operation-overbuilt.myshopify...