Locked Live Rear Axel

thingiverse

This is an axle assembly that's locked solid, requiring only a few Lego Technic shafts and two precision-cut gears to complete it. The gears are a custom 20mm 90-degree piece and a standard 13mm 90-degree one. All tolerances were intentionally left loose except for the 13mm gear, which was machined with pinpoint accuracy. You can print the entire assembly using your 3D printer, or you can use one or two printed parts to get started.