Glad you're enjoying it! Nope, vector graphics aren't a necessity (most people who upload their own graphics have used png or other raster (non-vector) image files). 2700x2700 is plenty big and should print perfectly fine.I'm using Chipmatic (its amazing, thank you) to design some chips that I'd like to submit to the Broken Arrow group buy and I just want to make sure I'm not making any costly mistakes.
Do the custom inlays I'm using to build chips on Chipmatc Studio need to be vector graphics? I've been making 2700x2700 png files out of photoshop - but I don't know the first thing about Illustrator or svg files.