Drew Witt (@wittworks on YouTube) released a phenomenal video on 3D printing a short while ago. If you haven't seen it, you should check it out.
Also, be sure to pause and screenshot the video at 18:39, you'll be glad you did.
Not only did he cover a lot of great information on materials, printers, settings, and some tips and tricks, he also has a glorious list of prints that you should do as a woodworker/maker.
Now... go watch it.