Casting a solid Bronze Boule (Petanque) - Casting a sphere!

I cast a solid bronze boule as a trophy, for a friendly and slightly drunken game of boules to be held at our house! I fired up the DIY foundry and using a 3D printed pattern and the green sand casting technique, I cast a solid bronze boule. It's essentially casting a sphere which is very hard to do! It is very over regulation weight but that doesn't matter this boule is an award! i'm guessing the original bronze boule were either hollow or were cast with a bronze alloy MUCH higher in aluminium (to keep the weight down). The problem with casting a sphere is SHRINKAGE!!! omg it's the WORST shape to cast. Much of casting this boule was about trying to minimize shrinkage. Also sorry for the recent channel inactivity, i'm back on it now! I've been very busy IRL and i'm doing some interesting projects that are not short, so they are difficult to make little videos about. some terrible news: While uploading this video, I've just heard that Grant Thompson has died, what a massive blow to the YouTube community. The guy was a tour-de-force and his videos were very entertaining and hugely popular. The first 'casting' videos i ever saw were on Grants channel. And he probably single-handedly kick-started the whole backyard casting phenomenon. I'm fairly sure the continued popularity of home casting as a hobby is pretty much down to him alone. He was always entertaining and will be very greatly missed. #RIPgrantThompson #bronzeCasting #backyardCasting