There are currently practical limits to what can be done with 3D printing. The long spokes are extremely difficult to print due to length and very much so due to the shallow angles of them relative to the axle axis. Hand lacing using a jig is not that difficult. I can see where hubs and rims designed for hand lacing might be good. Randy is printing wheels that would be very difficult to hand lace, even with a jig. Ask me how I know, but please don't ask me.