DIY cycling powermeter enclosure

thingiverse

An enclosure to the SG53 cycling powermeter module to be built into a Sram GXP crankset. It should, however be compatible with other axle dimensions (20mm inner diameter or larger - the outer dimension of the rib should be changed for the larger axles). The project itself is described here: https://sensitivus.com/products/diy-power-meter/ You can also order the electronics module there. Here are my slides from the Experimental Stress Analysis conference with further details about my build: http://home.zcu.cz/~jheczko/pt.pdf The main difference from the original instructions is that I glued the strain gauges to the inside of the crank axle and therefore did not need to drill a hole to it. The two parts of the enclosure are mirrored so that they can be put together and held by [two] ribs. There are two compartments, one for the SG53 module and the other for the battery. The front area has holes for the antenna, USB port, and a light guide to the status LED (I made mine from a bent piece of transparent filament). There are also openings on the sides for the wires that lead to the strain gauges.