Just wanted to share a bit of what I've been playing with. We bought one a couple weeks ago and now I'm using it a lot. I'm going to post a second thread with fixes/tips for it but here's the gist of what I've been making: -Plastic gear sets, "impossible" parts that you couldn't make out of metal and are only able to from building line by line vertically -Toys -Scale models of our products And my favorite so far - replacement parts for obscure discontinued cars. You can download replacements online for some parts, but I actually made this one from scratch. James' kewet car had a broken light holder for the signal lights. You can't buy these anymore and if you could they'd have to ship from Norway. So I made a simple holder based on the original in SolidWorks to the exact size measured with calipers. Printed in plastic using the 3d printer and installed perfectly on the 2nd try.