Tamiya Compatible Wheel for 3mm Hex Shaft

thingiverse

This is a 66mm wheel for a Tamiya 3mm hex shaft. I reused some silicone rubber bracelets (the green bands) as tires. In fact, that was the whole purpose -- to make a useful wheel with those bracelets. The circumference is about 210 mm. You can also see the lego-compatible rails mounting to the Tamiya gearbox, as well as a custom enclosure. The mounting rails are here, if interested: http://www.thingiverse.com/thing:1219292 There are two models: one regular wheel, and one with a brim. The brim is 0.400 mm thick where it attaches. (This is the thickness of my first layer when printing at 0.200mm with the printm3d software.) I printed in PLA. Note that the hex opening is 3.3mm on paper. It was still a tight fit. Recommend 20% or more infill. I used Sketchup because I found good 3d models of the tamiya gearboxes on 3dwarehouse. Print Settings Printer: Printm3d Micro Rafts: No Supports: No Resolution: 0.200mm Infill: 20%