I've seen a ton of gears along many different prints on this site. Many of which actually function within the print. I've never made gears before, let alone ones that could work without jamming. My question is, for those who use blender 3D, what is the best way to make gears? I mean, I could try to do it by copying and pasting teeth one by one, or try rotating them around a certain point, or even trace out a good drawing of gears. But from what I've seen, I have to believe that there is a standard, or at least a better way, of making functioning gears. Also, I was planning on counting the teeth to make sure there is a nice reduction ratio between certain gears in the system. I am planning on making something similar to this hand crank fan. http://www.youtube.com/watch?v=3eojAdYMT0g Thanks!