Hackaday editors Mike Szczys and Elliot Williams dig through the greatest hacks that ought not be missed this week. There's a wild one that flexes engineering skills instead of muscles to beat the homerun distance record with an explosively charged bat. A more elegant use of those engineering chops is shown in a CNC software tool that produces intricate wood joinery without needing an overly fancy machine to fabricate it. If your flesh and blood pets aren't keeping up with your interests, there's a new robot dog on the scene that far outperforms its constituent parts which are 3D-printed and of the Pi and Arduino varieties. And just when you thought you'd seen all the craziest retrocomputers, here's an electromechanical relay based machine that took six years to build (although there's so much going on here that it should have taken sixteen). Show notes: https://hackaday.com/?p=444464