Venkatesh Rao@vgrDamn, this is a 3d printing cathedral.Quote TweetEllie Rose @elianarose66·Aug 28, 2021I finished my fully 3D printed marble run! It's now 5 feet tall, motorized, and is a full rainbow #hotmakesShow this thread0:5526.1K views4:26 PM · Aug 31, 20213 Retweets47 Likes