Over the past few weeks, Ive been building a LEGO Technic trebuchet to display at Medieval Fayre. Had my first successful throw on the fourth attempt! Will continue testing in the morning- my wife is sleeping and im on thin ice already throwing stuff around the house. Counterweight is filled with lead shot in a ziplock back, aside from that it’s all Lego. Weaved the sling using jig, may rework that slightly. Shoutout to my friend Eben who assisted with so much more elegant quick release...