I wanted to print out an oval gear set, but couldn't find any on Thingiverse, so i made my own. I made it based on some existing pictures I found online, so I don't know exactly how the gears work, I just know they work.
Oval gears demo video by CAD Gill: https://www.youtube.com/watch?v=pvMJHI-l3UU
The prints snap fit together nicely, not requiring any glue. Just line up the gears, as shown on the picture below.
Hope you like it!
And if you like what you see, follow me on Instagram and Twitter (@Anders644PI) to keep up with what I make. My Insta: https://www.instagram.com/anders644pi/
NOTICE: Print the first layer slow (<25 mm/s), so that the tooth of the gears, stick to the bed properly. I didn't have problems with this, after I lowered the print speed to 25 mm/s at the initial layer.