The M1 3D printer from Carbon has been getting great reviews since its release in April, and it looks like the printer is only going to improve - with help from itself. Carbon engineers are experimenting with making the M1 partially self-replicating, and they've already succeeded with an M1-printed motor mount that greatly improves upon the original CNC machined aluminum part. Read more at 3DPrint.com: https://3dprint.com/143966/carbon-m1-self-replication/