Wind Energy Stored In Gravity

cults3d

I've included full models of the turbine and fan in addition to sliced versions for easier printing. You can reduce the number of fan blades, reverse them, or attach a motor/anything else you'd like. I recommend printing in ABS with .2 layer height and 30% fill. The rack gears function as the battery weight, so it might be a good idea to print them at 100% fill, and/or attach additional weight to the gear to increase torque. Let me know if you have any questions!