Original wheel was too small for our hedgehog. After finding the correct angle in SD3, the BigBox was able to output this 180% upscaled disc after 29 hours! http://www.thingiverse.com/make:196677
Takes up almost the entire build volume, probably around 12" diameter or so: hmm the google plus link preview isn't working i don't think,
The original at 100% was the size of a small dinner plate. This yellow one I printed with the BigBox upscaled to 180% is around 12" in diameter as Mike Kelly mentioned... https://goo.gl/photos/5TrcXZoKuqoHV7DU8