Hey, can you suggest which bevel gears would I want to use? There seems to be a few types, and I'm really note sure(number of teeth, material, etc, etc). I need a 4mm diameter shaft, at least for the motor shaft, others could vary I guess, but maybe it would be nice keeping it all the same. Regarding size, the smaller the better, if I could find something below 20mm it would be great.
Thanks! 