HotRodTechBits #1: Sump foundry pattern

In which I attempt to make a matchplate style foundry pattern for a sump. Part 2, casting: https://makertube.net/w/wRLBhREF5zKCsDF4nTfLQs Context for why I need to make a sump: https://makertube.net/w/cm7zgYQqi8hYTcmJYGboct #BackYardMetalFoundry