I recently decided to build an ebike with a turnigy 80100 and I ended up with a gearing of 8t/80t that would give a reasonable 64km/h. I downloaded the Sprocketeer 2.0 software so I could make the sprocket on my friends cnc. Each time I try to press go after I entered the values, I get Run Time error"13" and it happens all the time, with different teeth number, different chain etc. Does anybody have the same problem? Maybe someone could just send me a dwg of an 80t, #41 ansi chainring? Thank You!