Tamiya Compatible Wheel for 3mm Hex Shaft

thingiverse

This is a 66mm wheel for a Tamiya 3mm hex shaft, made possible by reusing some silicone rubber bracelets as tires. Those green bands were the key to creating a functional wheel, and that was the primary goal all along - utilizing those bracelets to build something useful. The circumference of this wheel comes in at approximately 210 mm. You can also catch a glimpse of the lego-compatible rails mounting to the Tamiya gearbox, as well as a custom enclosure designed specifically for this purpose. If you're interested in the mounting rails used here, you can find them online at http://www.thingiverse.com/thing:1219292. There are two models available: one standard wheel and another with a brim attachment. The brim itself is 0.400 mm thick where it connects to the rest of the wheel, which coincidentally matches the thickness of my first layer when printing at 0.200mm using the printm3d software. I chose to print this in PLA plastic. It's worth noting that the hex opening measures 3.3mm on paper but still required some effort to fit due to its tight tolerance. To achieve a smooth and strong print, I recommend increasing the infill percentage by at least 20%. My design process involved using Sketchup software, which offered me access to high-quality 3d models of Tamiya gearboxes available on 3dwarehouse. Print Settings: Printer: Printm3d Micro Rafts: No Supports: No Resolution: 0.200mm Infill: 20%