I figured I would post this here didn't use an openbuilds 3d printer but this can be done pretty much on any printer. Might help some just getting started. Shows from start to finish how to design a key chain in tinkercad, slice it in cura, figure out where to do the color change and how it all comes together. I want to make videos to help people, my first ones sucked I think I'm getting a little better!?! more to come openbuilds stuff soon!!! anyways take a look. Bob