Ingot mold for sand casting

Intended as a reusable model for sand casting. Each ingot is 14cm long, 3.9cm wide, and 2cm tall with a 3.5° draft and fillets. Around 100cm³ in volume. Designed specifically to fit a standard .50 cal ammo can. 7 per layer stacked 8 high, 56 ingot per can.

Standard print settings work fine. I use 20% infill and 4 shell layers for added durability. About 45g of PLA each.